You know that's approximately equal to ##\sqrt{\frac{(10)(\frac{1}{500})*30-10*(\frac{1}{20})}{30*0.1}}## ;)
That said, I think teaching graphing calculator use in high school isn't a bad thing, as it serves as a nice introduction to programs like Matlab or Mathematica. Both of those tools...
I've always taken it to mean nobody has really developed an intuition for QM phenomena. Yeah, after you look at some equations you can understand tunneling will happen, electrons will stay at certain energy levels, etc., but how many people can make those sorts of predictions before going...
Semiconductor and automobiles? I guess something along the lines of sensor design/fabrication.
For the carbon nanotube stuff you could always put some in a random steel alloy and say you've nanoengineered the steel.
There's a lot of videos of it on youtube, but most wires are made by cold drawing in one form or another. Basically take some metal that's, say, 0.250" in diameter, pull it through a hole that's 0.245" in diameter. Rinse and repeat until you get to the thickness you want (with possible annealing...
Light coming in has three choices.
1) Reflect
2) Transmit through object
3) Be absorbed
These are represented by a number between 0 and 1.
It's somewhat difficult to think of how a material can do all three, but you can do a fairly simple thought experiment. Think of when you shine a laser...
I imagine what you're looking at is essentially like a reflection efficiency. In your example, wavelength_1 will reflect 80 J of light at that particular wavelength.
At wavelength_2 it will reflect 30 J. The remaining 70 J will be split between being absorbed or transmitted through the...
A lot of it depends on the area the house is built in and the time the house was built. I know in my area it's been about 50/50 when I looked at places.
Gas heat is really convenient because it heats up faster (almost instantly for stovetops), can get hotter, and can be cheaper depending on...