10 Aug
2020
10 Aug
'20
5:45 p.m.
On 8/10/20 2:44 PM, Al Kossow via cctalk wrote:
On 8/10/20 12:40 PM, Chuck Guzis via cctalk wrote:
Anyone remember the Popular Electronics "Carl and Jerry" episode that
involved a baby bottle full of water with a coil wrapped around it?
"The Educated Nursing Bottle" April, 1964, PDF page 82 here;
https://hobbydocbox.com/Radio/69634003-Popular-1964-electronics-35-cents-ta…
An interesting article about using a 7090 to determine the cause of WWI
also.
--Chuck
On 8/10/20 12:17 PM, Christian Kennedy via cctalk
wrote:
>
>
> On 8/7/20 4:34 PM, Warner Losh via cctalk wrote:
>
>> The OCO looks nice. Timing gear maybe?
>
There was a discussion of this on the cctalk discord
It was made for the USGS to study the earth's magnetic field