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Rotating Quiz #34

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Mark Brader

unread,
Sep 30, 2011, 7:52:57 PM9/30/11
to
This is the *rotating* quiz. The high scorer will be invited to set
RQ #35. Please post your answers in a followup in this thread, quoting
the question before each one. See also the notes below the questions.

Answers must be posted by Wednesday (by Toronto time) -- that is,
as I post this, you have 5 days and a bit over 4 hours to answer.


1. The word "helicopter" is derived from the Greek for what?

2. Most helicopters have a tail rotor, which is a sideways-facing
propeller. Briefly explain why it's needed.

3. Briefly explain how an autogyro is different from both a
helicopter and an airplane.

4. Name the Clark Gable movie in which a character arrives for
the climactic scene by autogyro.

5. The NBC Mystery Movie was a rotating or "wheel" TV series.
Give the last names of any *two* of its various lead detective
characters.

6. The Earth rotates around its axis at what angular velocity?

7. Which planet rotates about an axis almost parallel to its
orbital plane, so that its polar regions (analogous to
the areas within the Earth's Arctic and Antarctic Circles)
cover most of the planet?

8. LP records are designed to be played while rotating at what
angular velocity?

9. The winds caused by weather systems often form a rotating
pattern. What is the direction of this rotation, at
ground level, in the case of an anticyclone in the Southern
Hemisphere?

10. The Whirlpool at Niagara Falls is a pool forming a bulge
on one side of the Niagara River. The incoming water from
the rapids produces many small whirlpools, but in addition
the river's flow drives an overall rotation of the pool.
In summer, the direction of this overall rotation reverses
between night and day. What triggers the change?

11. The Frisbee was named after a pie plate from a similarly
named company, but how did that company spell the name?

12. Name a word that produces a synonym of itself when
transformed by rot13. Both the original word and the synonym
must be ordinary, well-known words.


*NOTE*
On this quiz computer assistance is allowed for any calculations
or for rot13ing any *single* words that you might want to try,
but, as usual, you must not use it to search out answers -- your
answers or guesses must be based only on your own knowledge.

For questions requiring a numerical answer, use any convenient unit;
if nobody gets an exact answer, then the closest answer actually given
will be accepted.
--
Mark Brader, Toronto | "Where is down special?" ... "Good."
m...@vex.net | "Do you refuse to answer my question?" "Don't know."

My text in this article is in the public domain.

swp

unread,
Sep 30, 2011, 8:13:53 PM9/30/11
to
On Friday, September 30, 2011 7:52:57 PM UTC-4, Mark Brader wrote:
> This is the *rotating* quiz. The high scorer will be invited to set
> RQ #35. Please post your answers in a followup in this thread, quoting
> the question before each one. See also the notes below the questions.
>
> Answers must be posted by Wednesday (by Toronto time) -- that is,
> as I post this, you have 5 days and a bit over 4 hours to answer.
>
>
> 1. The word "helicopter" is derived from the Greek for what?

twisted wing

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

to prevent the rotation of the fuselage caused by the turning of the main overhead rotors.

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.

it's different?

> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.

it happened one night

> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.

columbo

> 6. The Earth rotates around its axis at what angular velocity?

361 degrees per day

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

uranus

> 8. LP records are designed to be played while rotating at what
> angular velocity?

33 1/3

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

clockwise

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?

tidal pull

> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?

whammo!

> 12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.

ow, thinking is hard! I'll pass on this one to get my slate in as I may not be able to do this again for about a week. inspectors and bankers and scores, oh my!

swp

Marc Dashevsky

unread,
Sep 30, 2011, 11:51:58 PM9/30/11
to
In article <QtKdncHEV-fEyxvT...@vex.net>, m...@vex.net says...
> This is the *rotating* quiz. The high scorer will be invited to set
> RQ #35. Please post your answers in a followup in this thread, quoting
> the question before each one. See also the notes below the questions.
>
> Answers must be posted by Wednesday (by Toronto time) -- that is,
> as I post this, you have 5 days and a bit over 4 hours to answer.
>
>
> 1. The word "helicopter" is derived from the Greek for what?
helical wing

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.
it keeps the body from rotating

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.
>
> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.
>
> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.
Columbo and McCloud

> 6. The Earth rotates around its axis at what angular velocity?
2pi radians/day

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?
>
> 8. LP records are designed to be played while rotating at what
> angular velocity?
66-2/3 x pi radians/minute

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?
clockwise

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?
>
> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?
>
> 12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.


--
Go to http://MarcDashevsky.com to send me e-mail.

Erland Sommarskog

unread,
Oct 1, 2011, 8:22:23 AM10/1/11
to
Mark Brader (m...@vex.net) writes:
> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

To make it possible to change direction.

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.

Helicopters and airplanes fly around people in the air. The autogyro
flies away from money from your account automatically. No wait, that's
an autogiro. Oh, never mind.

> 6. The Earth rotates around its axis at what angular velocity?

7.27-E5 radians/s

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Neptune

> 8. LP records are designed to be played while rotating at what
> angular velocity?

3.49 radians/s

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

Western

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?

The difference in temperature between air and water; air is warmer during
the day, but colder at night.

--
Erland Sommarskog, Stockholm, esq...@sommarskog.se

Jeffrey Turner

unread,
Oct 1, 2011, 3:00:07 PM10/1/11
to
On 9/30/2011 7:52 PM, Mark Brader wrote:
> This is the *rotating* quiz. The high scorer will be invited to set
> RQ #35. Please post your answers in a followup in this thread, quoting
> the question before each one. See also the notes below the questions.
>
> Answers must be posted by Wednesday (by Toronto time) -- that is,
> as I post this, you have 5 days and a bit over 4 hours to answer.
>
>
> 1. The word "helicopter" is derived from the Greek for what?

Spiral - flight

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

To keep the 'copter from spinning.

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.
>
> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.

North by Northwest

> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.
>
> 6. The Earth rotates around its axis at what angular velocity?

360 degrees/day

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Uranus

> 8. LP records are designed to be played while rotating at what
> angular velocity?

33 1/3 rpm

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

counter-clockwise

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?
>
> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?

Frisbie

> 12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.


>
>
> *NOTE*
> On this quiz computer assistance is allowed for any calculations
> or for rot13ing any *single* words that you might want to try,
> but, as usual, you must not use it to search out answers -- your
> answers or guesses must be based only on your own knowledge.
>
> For questions requiring a numerical answer, use any convenient unit;
> if nobody gets an exact answer, then the closest answer actually given
> will be accepted.

--Jeff

robpparker SPAM @foroptusnet.com.aume Rob Parker

unread,
Oct 2, 2011, 2:11:03 AM10/2/11
to
> 1. The word "helicopter" is derived from the Greek for what?

spiral wing (?)

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

to stop the helicopter itself spinning with the main rotor blade(s)

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.

has a rotor for lift and a propellor for thrust

> 6. The Earth rotates around its axis at what angular velocity?

15 degrees per hour

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Uranus (?)

> 8. LP records are designed to be played while rotating at what
> angular velocity?

(33 + 1/3) rpm

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

anticlockwise


Rob


Joachim Parsch

unread,
Oct 2, 2011, 11:27:00 AM10/2/11
to
Am 01.10.2011 01:52, schrieb Mark Brader:
> This is the *rotating* quiz. The high scorer will be invited to set
> RQ #35. Please post your answers in a followup in this thread, quoting
> the question before each one. See also the notes below the questions.
>
> Answers must be posted by Wednesday (by Toronto time) -- that is,
> as I post this, you have 5 days and a bit over 4 hours to answer.
>
>
> 1. The word "helicopter" is derived from the Greek for what?

Helix (Spiral) + Pter (Flying)

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

Without it, the helicopter cabin would turn in the opposite
direction of the rotors because of Newton's actio = reactio.

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.

Difference to airplane: no wings
Difference to heli: has a front propeller for speed

> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.
>
> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.
>
> 6. The Earth rotates around its axis at what angular velocity?

2*PI/86400sec = 7.272*10^-5 1/sec

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Uranus.

> 8. LP records are designed to be played while rotating at what
> angular velocity?

33*2*PI/60sec = 3.456 1/sec

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

Counter-Clockwise.

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?
>
> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?
>
> 12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.

No. (there must be some slang, where "ab" is an ordinary, well-known
synonym to say "no f*cking way")

Joachim

Peter Smyth

unread,
Oct 2, 2011, 12:49:57 PM10/2/11
to
"Mark Brader" wrote in message
news:QtKdncHEV-fEyxvT...@vex.net...
>
>This is the *rotating* quiz. The high scorer will be invited to set
>RQ #35. Please post your answers in a followup in this thread, quoting
>the question before each one. See also the notes below the questions.
>
>Answers must be posted by Wednesday (by Toronto time) -- that is,
>as I post this, you have 5 days and a bit over 4 hours to answer.
>
>
>1. The word "helicopter" is derived from the Greek for what?
>
>2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.
>
>3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.
>
>4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.
>
>5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.
>
>6. The Earth rotates around its axis at what angular velocity?
1 revolution per day
>7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?
Uranus
>8. LP records are designed to be played while rotating at what
> angular velocity?
33 1/3 rpm
>9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?
anticlockwise
>10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?
The relative temperature of the water at the top and at the bottom.
>11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?
Frisby
>12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.


Peter Smyth

Calvin

unread,
Oct 2, 2011, 9:43:49 PM10/2/11
to
On Sat, 01 Oct 2011 09:52:57 +1000, Mark Brader <m...@vex.net> wrote:

> 1. The word "helicopter" is derived from the Greek for what?

Helios the sun?

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

To stop the body rotating counter to the main propeller

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.
>
> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.
>
> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.
>
> 6. The Earth rotates around its axis at what angular velocity?
>
> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Neptune, Uranus

> 8. LP records are designed to be played while rotating at what
> angular velocity?
>
> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

Anti-clockwise

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?

Additional heat from the sun?

> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?

Frisby, Frisbie

> 12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.


--

cheers,
calvin

David

unread,
Oct 3, 2011, 5:41:33 AM10/3/11
to
> 1. The word "helicopter" is derived from the Greek for what?

Helix Wing.

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

To stop the rotation of the main body.

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.

Autogyros have un powered rotor blades that rotate due to forward movement.

> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.
>
> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.
>
> 6. The Earth rotates around its axis at what angular velocity?

360 degrees per day.

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Uranus.

> 8. LP records are designed to be played while rotating at what
> angular velocity?

12,000 degrees per minute. (33 1/3 rpm)

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

Anti-clockwise.

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?

More water is diverted through the hydro-electric power station at night.

> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?

Frisbee.

Dan Tilque

unread,
Oct 4, 2011, 1:13:56 AM10/4/11
to
Mark Brader wrote:
> This is the *rotating* quiz. The high scorer will be invited to set
> RQ #35. Please post your answers in a followup in this thread, quoting
> the question before each one. See also the notes below the questions.
>
> Answers must be posted by Wednesday (by Toronto time) -- that is,
> as I post this, you have 5 days and a bit over 4 hours to answer.
>
>
> 1. The word "helicopter" is derived from the Greek for what?
>
> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

to keep the body from counter-rotating to the main rotor

>
> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.
>
> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.
>
> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.

Columbo and Smith

>
> 6. The Earth rotates around its axis at what angular velocity?

1 rotation per day

>
> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Uranus

>
> 8. LP records are designed to be played while rotating at what
> angular velocity?

33 1/3 rpm

>
> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

clockwise

>
> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?

river flow is reduced at night

>
> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?

Frisbie

>
> 12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.
>
>
> *NOTE*
> On this quiz computer assistance is allowed for any calculations
> or for rot13ing any *single* words that you might want to try,
> but, as usual, you must not use it to search out answers -- your
> answers or guesses must be based only on your own knowledge.
>
> For questions requiring a numerical answer, use any convenient unit;
> if nobody gets an exact answer, then the closest answer actually given
> will be accepted.


--
Dan Tilque

Keeping Pluto dead has taken a lot of work.
-- Mike Brown "How I killed Pluto and Why It Had It Coming"

Mark Brader

unread,
Oct 6, 2011, 12:04:46 AM10/6/11
to
Mark Brader:
> This is the *rotating* quiz. The high scorer will be invited to set
> RQ #35.

And, I think for the first time, that's the entrant posting merely
as "David". Congratulations! Take it away, please.


> 1. The word "helicopter" is derived from the Greek for what?

Spiral (as in helix) wing (as in pterodactyl). I accepted "helical
wing". 1 for Marc, Rob, and David.

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

To counter the torque applied to the helicopter body in an equal and
opposite reaction to the motor's torque on the main rotor. You had
to mention at least that the spin would be possible to the rotor's.
1 for Stephen, Joachim, Calvin, and Dan.

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.

Unlike an airplane, it is lifted by a rotary wing. Unlike a
helicopter, that rotary wing is not directly powered, but is driven by
the air as the aircraft is driven forward by a propeller. Nobody gave
all these details but three answers were complete enough to accept.
1 for Rob, Joachim, and David.

A few hours after posting this contest, I watched the episode
of "Jeopardy!" from two days earlier -- and one of the questions
showed a picture of an autogyro, mentioned its inventor, and
asked what it was. And none of the players got it.

> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.

"It Happened One Night". King Westley (Jameson Thomas) pilots
an autogyro to his wedding to Ellie Andrews (Claudette Colbert).
1 for Stephen.

> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.

The three easy ones, because they appeared for the whole 1971-77 run
of the series, were Columbo, [Sam] McCloud, and [Stewart] McMillan.
Also correct were: [Thomas] Banacek (1972-73), [Frank and Steve]
Faraday (1973-74), [Jefferson] Keys ("Cool Million", 1972-73), [Dan]
Madigan (1972-74), McCoy (1975-76), [Amy] Prentiss (1974-75), Quincy
(1976), [Hec] Ramsey (1972-74), [David] Small ("Lanigan's Rabbi",
1977), [Ernesta and Gwen] Snoop ("Snoop Sisters", 1973-74), [Harry]
Tenafly (1973-74). (Titles are shown only where they did not include
the character's last name.) 1 for Marc.

> 6. The Earth rotates around its axis at what angular velocity?

1 revolution per *sidereal* day. Nobody gave an exact answer,
but Stephen's answer of 361°/day was within 0.004%. 1 for Stephen.

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Uranus. 1 for Stephen, Jeff, Rob, Joachim, Peter, David, and Dan.

> 8. LP records are designed to be played while rotating at what
> angular velocity?

33+1/3 RPM. 1 for Stephen, Marc, Jeff, Rob, Peter, David, and Dan.

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

Anticlockwise. 1 for Jeff, Rob, Joachim, Peter, Calvin, and David.

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?

The river's depth varies according to how much water is diverted
for hydroelectric power generation. 1 for David and Dan.

The hydroelectric plants these days are downstream of the Whirlpool.
In the daytime in summer, to preserve the appearance of the falls
only 1/2 of the natural water flow is diverted; at other times,
3/4 is diverted. As the river also has a sharp bend at this location,
with deep water the outgoing current has room to cross under the
very fast incoming current and reach the outlet; with shallow water
the two flows collide and divert each other.

Deep-water flow Shallow-water flow

/------\ /------\ W N
/ <<< \ / >>> \ x
| v ^ \ | ^ v \ S E
| v ^ \ | ^ v \
| v ^ \------ | ^ \ \------
\ >> ^ >>>>>>>>> \ \. >>>>>>>>>
\-\ ^ /------- \-\ \ /-------
\ ^ / \ ^ /
| ^ | | ^ |
| ^ | | ^ |


> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?

Frisbie. 1 for Jeff and Dan.

> 12. Name a word that produces a synonym of itself when
> transformed by rot13. Both the original word and the synonym
> must be ordinary, well-known words.

Irk.arg, vex.net. Or something like that. :-)


> For questions requiring a numerical answer, use any convenient unit;
> if nobody gets an exact answer, then the closest answer actually given
> will be accepted.

For future reference: if the answer is a rational number using degrees
or revolutions for the angular measure, anything using radians is not
going to be convenient.


Scores, if there are no errors:

"David" 6
Rob Parker 5
Stephen Perry 5
Dan Tilque 5
Jeff Turner 4
Joachim Parsch 4
Marc Dashevsky 3
Peter Smyth 3
"Calvin" 2
Erland Sommarskog 0
--
Mark Brader "Although I have not seen any mention of SoftQuad
Toronto or HoTMetaL in the magazine, it is certainly
m...@vex.net worth while reading." -- Selwyn Wener

David

unread,
Oct 6, 2011, 4:34:51 AM10/6/11
to
"Mark Brader" wrote in message
news:srednY8YvapDtRDT...@vex.net...

Mark Brader:
> This is the *rotating* quiz. The high scorer will be invited to set
> RQ #35.

> And, I think for the first time, that's the entrant posting merely
> as "David". Congratulations! Take it away, please.

Wow! I didn't expect to ever get to set the questions!
I'll try and sort something out by tomorrow.
--
David Brown

Gareth Owen

unread,
Feb 4, 2014, 5:24:23 PM2/4/14
to
m...@vex.net (Mark Brader) writes:

> Answers must be posted by Wednesday (by Toronto time) -- that is,
> as I post this, you have 5 days and a bit over 4 hours to answer.

I may have missed this deadline

> 1. The word "helicopter" is derived from the Greek for what?

Rotating bird

> 2. Most helicopters have a tail rotor, which is a sideways-facing
> propeller. Briefly explain why it's needed.

Stability - to stop the 'copter body counter rotating.

> 3. Briefly explain how an autogyro is different from both a
> helicopter and an airplane.

Flies like a heli', but unpowered

> 4. Name the Clark Gable movie in which a character arrives for
> the climactic scene by autogyro.

No idea

> 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> Give the last names of any *two* of its various lead detective
> characters.

Never heard of it ... Columbo, Quincy

> 6. The Earth rotates around its axis at what angular velocity?

1 rotation per day

> 7. Which planet rotates about an axis almost parallel to its
> orbital plane, so that its polar regions (analogous to
> the areas within the Earth's Arctic and Antarctic Circles)
> cover most of the planet?

Uranus

> 8. LP records are designed to be played while rotating at what
> angular velocity?

33 1/13 RPM.

> 9. The winds caused by weather systems often form a rotating
> pattern. What is the direction of this rotation, at
> ground level, in the case of an anticyclone in the Southern
> Hemisphere?

(flips coin) Anti clockwise

> 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> on one side of the Niagara River. The incoming water from
> the rapids produces many small whirlpools, but in addition
> the river's flow drives an overall rotation of the pool.
> In summer, the direction of this overall rotation reverses
> between night and day. What triggers the change?

Cooling

> 11. The Frisbee was named after a pie plate from a similarly
> named company, but how did that company spell the name?

Frisby?

Mark Brader

unread,
Feb 4, 2014, 6:28:23 PM2/4/14
to
Mark Brader:
> > Answers must be posted by Wednesday [2011-10-05] (by Toronto time)...

Gareth Owen:
> I may have missed this deadline

Hmm.

Answers repeated from the original answer posting; comments this time
in square brackets.

> > 1. The word "helicopter" is derived from the Greek for what?

> Rotating bird

Spiral (as in helix) wing (as in pterodactyl). I accepted "helical
wing".

> > 2. Most helicopters have a tail rotor, which is a sideways-facing
> > propeller. Briefly explain why it's needed.

> Stability - to stop the 'copter body counter rotating.

[Good enough.] To counter the torque applied to the helicopter body
in an equal and opposite reaction to the motor's torque on the main
rotor...

> > 3. Briefly explain how an autogyro is different from both a
> > helicopter and an airplane.

> Flies like a heli', but unpowered

[Not sufficient; the aircraft is powered.]

Unlike an airplane, it is lifted by a rotary wing. Unlike a
helicopter, that rotary wing is not directly powered, but is driven by
the air as the aircraft is driven forward by a propeller. Nobody gave
all these details but three answers were complete enough to accept.

A few hours after posting this contest, I watched the episode
of "Jeopardy!" from two days earlier -- and one of the questions
showed a picture of an autogyro, mentioned its inventor, and
asked what it was. And none of the players got it.

> > 4. Name the Clark Gable movie in which a character arrives for
> > the climactic scene by autogyro.

"It Happened One Night". King Westley (Jameson Thomas) pilots
an autogyro to his wedding to Ellie Andrews (Claudette Colbert).

> > 5. The NBC Mystery Movie was a rotating or "wheel" TV series.
> > Give the last names of any *two* of its various lead detective
> > characters.

> Never heard of it ... Columbo, Quincy

The three easy ones, because they appeared for the whole 1971-77 run
of the series, were Columbo, [Sam] McCloud, and [Stewart] McMillan.
Also correct were: [Thomas] Banacek (1972-73), [Frank and Steve]
Faraday (1973-74), [Jefferson] Keys ("Cool Million", 1972-73), [Dan]
Madigan (1972-74), McCoy (1975-76), [Amy] Prentiss (1974-75), Quincy
(1976), [Hec] Ramsey (1972-74), [David] Small ("Lanigan's Rabbi",
1977), [Ernesta and Gwen] Snoop ("Snoop Sisters", 1973-74), [Harry]
Tenafly (1973-74). (Titles are shown only where they did not include
the character's last name.)

["Quincy, M.E." was a normal weekly 1-hour show, not movie-length and
not part of the wheel.]

> > 6. The Earth rotates around its axis at what angular velocity?

> 1 rotation per day

1 revolution per *sidereal* day. Nobody gave an exact answer,
but Stephen's answer of 361°/day was within 0.004%.

> > 7. Which planet rotates about an axis almost parallel to its
> > orbital plane, so that its polar regions (analogous to
> > the areas within the Earth's Arctic and Antarctic Circles)
> > cover most of the planet?

> Uranus

Uranus.

> > 8. LP records are designed to be played while rotating at what
> > angular velocity?

> 33 1/13 RPM.

[Har.] 33+1/3 RPM.

> > 9. The winds caused by weather systems often form a rotating
> > pattern. What is the direction of this rotation, at
> > ground level, in the case of an anticyclone in the Southern
> > Hemisphere?

> (flips coin) Anti clockwise

Anticlockwise.

> > 10. The Whirlpool at Niagara Falls is a pool forming a bulge
> > on one side of the Niagara River. The incoming water from
> > the rapids produces many small whirlpools, but in addition
> > the river's flow drives an overall rotation of the pool.
> > In summer, the direction of this overall rotation reverses
> > between night and day. What triggers the change?

> Cooling

The river's depth varies according to how much water is diverted
for hydroelectric power generation.

The hydroelectric plants these days are downstream of the Whirlpool.
In the daytime in summer, to preserve the appearance of the falls
only 1/2 of the natural water flow is diverted; at other times,
3/4 is diverted. As the river also has a sharp bend at this location,
with deep water the outgoing current has room to cross under the
very fast incoming current and reach the outlet; with shallow water
the two flows collide and divert each other.

Deep-water flow Shallow-water flow

/------\ /------\ W N
/ <<< \ / >>> \ x
| v ^ \ | ^ v \ S E
| v ^ \ | ^ v \
| v ^ \------ | ^ \ \------
\ >> ^ >>>>>>>>> \ \. >>>>>>>>>
\-\ ^ /------- \-\ \ /-------
\ ^ / \ ^ /
| ^ | | ^ |
| ^ | | ^ |


> > 11. The Frisbee was named after a pie plate from a similarly
> > named company, but how did that company spell the name?

> Frisby?

Frisbie.

> > 12. Name a word that produces a synonym of itself when
> > transformed by rot13. Both the original word and the synonym
> > must be ordinary, well-known words.

Irk.arg, vex.net. Or something like that. :-)



The original scores were:

"David" 6
Rob Parker 5
Stephen Perry 5
Dan Tilque 5
Jeff Turner 4
Joachim Parsch 4
Marc Dashevsky 3
Peter Smyth 3
"Calvin" 2
Erland Sommarskog 0

And Gareth, jokes about LP records aside, would have scored 4.
--
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Toronto | "I kept all my verbs very supple
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