Schlieren video

[Scott]

Just put a link on the webpage. If you don't visit frequently, here is some of the Schlieren video I shot yesterday with improved optics.

http://youtu.be/bGskL2wdQ54

[Dan Goldstein]

very cool!
Thanks Scott...

On Sun, May 20, 2012 at 6:16 PM, Scott <scott.k...@gmail.com> wrote:

Just put a link on the webpage. If you don't visit frequently, here is some of the Schlieren video I shot yesterday with improved optics.

http://youtu.be/bGskL2wdQ54

--
"There is nobody in this country who got rich on his own. Nobody. You built a factory   out there - good for you.
 
But I want to be clear. You moved your goods to market on the roads the rest of us paid for. You hired workers the rest of us paid to educate. You were safe in your factory because of the police forces and the fire forces that the rest of us paid for. You didn't have to worry that marauding bands would come and seize everything at your factory...
 
Now look. You built a factory and it turned into something terrific or a great idea - God bless! Keep a big hunk of it. But part of the underlying social contract is you take a hunk of that and you pay forward for the next kid who comes along."
- Elizabeth Warren (Sept. 2011)

[Ryan]

I've been meaning to post this somewhere if Zach hasn't already. Heres the video I made of the schlieren rig. http://www.youtube.com/watch?v=fgCn6SYeVT0

also I messed up and the youtube username is "columbagadgetworks" instead of "columbiagadgetworks"   oopse.

[Scott Kovaleski]

This video looks really nice Ryan! Thanks for putting it together! Do you mind if I link to it on an instructable or something?

Is there anyway to change the youtube username at this point? It would be nice for searches to find any video we can get up on youtube.

[Ryan]

Feel free to use that video as you see fit. I'm glad you like it.

As for the user name i'm looking into it. I remember reading somewhere that it is changeable but only so many times. For now i'll make sure to tag the videos in a way that would be easy to find us.

[Dave Neff]

Really sweet!  Love to see more samples.. maybe a hotplate, candles... smoking gun?  What about cold objects.... dry ice?  Dry ice dripped with warm water?


David

[Scott Kovaleski]

Those are some good ideas Dave! I need to get back to messing with this setup; candles were on my list, but hotplate and dry ice are definitely interesting. I would like to build a little wind tunnel, too. Saw in interesting build somewhere using a leaf blower and a block of soda straws to get parallel air.

[Chad LaFarge]

Please note that I’ve uploaded a video preview of the MU Surplus Auction.

 

YouTube is attempting to remove my “shake”, but it should be available now: http://youtu.be/OHyO65X5EvU

 

Part 1 is the above link. Part 2 (the vehicles) is linked from part 1.

 

Hope it’s useful.

 

Chad

[Ryan]

Man there is a ton of things in there I would love to have. I just don't have the money. How many people typically show up for the auctions? 

[Dave Neff]

Maybe an expensive product to take a picture of... the Dyson Air Multiplier fan would be a really interesting subject to analyze. 

Love the straws and leaf blower idea, you could do the same with a shop vac and you won't need earplugs.

D

[Chad LaFarge]

I couldn’t say... the cars usually line the street from the nearest intersection on auction day, though. I would suggest a few car-pool.

Chad

[Nathan Odle]

Just saw this and thought I'd throw a few things out there for those that haven't been to one of these auctions before:

1.  If you miss a pallet of computers, don't worry.  There are a lot more where those came from.

2.  If you see a pallet full of stuff and just want one item, feel free to ask the auctioneer to sell just that item first.

3.  If you show up earlier in the week, you can test things out that need testing.  BYO extension cord.

4.  Steel furniture is IMHO by far the best 'buy' that shows up regularly.  If you need a desk, filing cabinet, or shelving - the MU surplus auction is the place to be.  $5 - $20 per item usually.

5.  The vast vast majority of regulars are eBay sellers and scrappers.  The eBayers act in concert with one another and are mainly there to pick up scientific and medical equipment.  They show up with maps of the aisles and everything.  No big deal, but be forewarned that if you want the same thing they do, you are unlikely to get a super deal on it.  The scrappers will bid on anything metal, but don't normally drive up the bids as much as the eBayers do.

6.  I would say on average it takes them 30-45 minutes to get through the cars and scrap metal.  After that, they go to computers and copiers, then miscellaneous stuff.  Chairs and wood desks go toward the end.  Medical is usually some of the last to sell.  Plan accordingly.

7.  In my experience, the auctions during June/July/August are some of the best because the STEM departments like to clean out their old labs over summer break.

All in all, these auctions are pretty fun.  A lot of pure junk, for sure, but some good stuff comes through on occasion.