Some of the candidates participating in Canada’s 2017 astronaut selection process answer a question from Anissa, 15 years old, from Phoenix, United States: According to you, what is the most …
You probably don’t NEED to know this, but it’s interesting, and one of those things that one day you may actually benefit from the knowledge, and not necessarily even in …
While browsing Banggood for LED lighting components a link to a 12V DC ceiling fan appeared. I wondered if the fan could be used as a small wind turbine so …