When Abraham Lincoln proclaimed Thanksgiving a national holiday in 1863, he was thinking about the Civil War. And so was the woman who had lobbied for Thanksgiving for years.
With modern electronics, it is relatively easy to build your own radio telescope. To understand how it can be done, check out a recent paper by Jack Phelps posted to the arXiv preprint server.
That includes launching a new six-week academy where students get to build their own ham radio for free and from scratch. “We're finally pursuing that dream of providing this after school ...
The Bell Technology Center is going old school, teaching kids how to build their own amateur radios ... center offers free digital skills classes and other training opportunities throughout the year.