/sci/ - Science & Math

What would be the best chart/graph to compare +10 different attributes of 5 or more different people?

>>3340793
Aw yeah!

My last and indeed only experiment with any kind of voltage at all was when we made that lemon powered light bulb in sixth grade.

Should I build a Tesla coil?

Hey, bit of a mechanical question here. Are all analog radio signals pretty much the same? What I'm wondering is, can I get a receiver that will allow me to just scan from one end of the radio spectrum to the other? And I don't mean like FM and AM, like can I go all the way through CB radio and listen to wifi static and stuff too? How does this work?

>>1580288
Okay I admit my opinion may have been affected by this "awesome" direct electricity weapon:
http://www.youtube.com/watch?v=Ak2j9x9Ts_k

(7:30 onwards)

Tesla coils do look kind of cool, too bad they aren't as dangerous as they look.

History Channel is spewing more nonsense about how ancient lost civilizations used obelisks to transmit electricity to one another,...or something.

QUESTION: Nikola Tesla proposed a wireless electrical grid, using the conductivity of the ground or the air. Why wasn't this implemented? What's the limitation?

>implying a better understanding of electromagnetism won't unlock the key to many of the mysteries that currently elude us