This month's Scientific American

[ja...@ganssle.com]

In an article about doing astronomy on the moon, a sentence reads “Astronomers have managed to detect some 21-centimeter cosmic signals through heroic efforts using ground-based instruments, but the noisy, patchy view painted by these detections is woefully incomplete.”

 

I bet the author would be surprised that amateurs using simple disk-Yagi antennas as $50 LNAs capture these signals from their backyards!

 

Jack

N3ALO

[Bruce Rout]

It's Scientific American. Used to be a pretty good magazine.

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[Don Latham]

Well said,l Bruce. It used to be about science, it is now about opinions about science, and a lot less fact.

 

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Don Latham
PO Box 404,
Frenchtown, MT, 59846
406-626-4304

 

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From: Bruce <bruc...@gmail.com>
To: sara-list <sara...@googlegroups.com>
Date: Saturday, 30 May 2026 2:37 PM MDT
Subject: Re: [SARA] This month's Scientific American

To view this discussion visit https://groups.google.com/d/msgid/sara-list/CAKczWikPD4e6fUyatWCpGd0k%2B1fyN7JGXB72ReehhVa6uCJWsQ%40mail.gmail.com.

[Stephen Arbogast]

This looks cool....   will it work?

Small, flat, rooftop satellite antennas could replace big, bulky, costly dishes

https://newatlas.com/telecommunications/flat-rooftop-satellite-antennas/

[Whitham Reeve]

Hi Bruce - Agreed. Scientific American quit being about science sometime in the 1980s, which is when I cancelled my subscription.

Whit

[Jim Brown]

Ditto.  It was a required reading in one of my astronomy classes in grad school.  Such a shame.

To view this discussion visit https://groups.google.com/d/msgid/sara-list/f34e1af6-b57f-4ccc-8ddb-581cdbdb5c98n%40googlegroups.com.

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Hawk's Nest Radio Astronomy Observatory
http://hnrao.weebly.com/
The only easy day was yesterday

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[Bruce Rout]

It seems everything has turned to click bait. And the more bizarre the more it's promoted.

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