For the first time in it's 175 year history Scientific American has endorsed a presidential candidate, Joe Biden. They recognize the importance of basing our actions on fact and science, and the disasters... continue reading
posted by newtboy 3 years 7 months 3 weeks ago • 361 views • 3:42search results matching tag: 175
» channel: learn
Search took 0.000 seconds
- 1
Videos (2) | Sift Talk (0) | Blogs (0) | Comments (95) |
I built a natural draft furnace to test ideas about how hot a furnace could get without the use of bellows. Natural draft is the flow of air through a furnace due to rising hot air. The hot gasses in the... continue reading
posted by Mordhaus 6 years 6 months 1 week ago • 454 views • 5:46- 1