DoctorFastest's channel

@85Damix That doesn't mean they're easy by the 'normal' standards of course. Similar to a first-year undergraduate level.

WOW. I thought this was going to be about drag...

Don't think Python got enough respect. You've probably seen this, but:

...xkcd.com/353/

That's how I feel about it.

You offer good advice for someone who has trouble keeping straight what they know and what they don't. (Admittedly this can be tricky sometimes. Especially in technical subjects, where sometimes people worry too much about vocabulary which they don't fully understand, rather than the ideas this v...

@GiaIsTheBest Oh I was also going to say, this kind of trickery can be important sometimes. For example in physics, our best current theories make predictions where the value of what is supposed to be a measurable, experimental quantity corresponds to a divergent sum. So physicists have learned t...

@faithx92 ∫∫ div(F)dA is correct. Green's theorem is the analog of the divergence theorem for two dimensional vector fields.

Perhaps you are confused because Green's theorem can also be generalized to Stokes theorem. Namely, if you go from the plane the three dimensional space. In that case it ...

@MrChemify My understanding is they use electrons because of the short wavelength. The problem with using DLS on something like this would be scattering off of multiple particles within a single wavelength, complicating the interpretation of the scattering significantly. I'm not an expert, but I'...

@BinaryStars100 That was the part I agree with. The part I don't understand is your point about metaphysics. Why can't we put that aside and talk about the theory? The point is to predict what happens. If you're more interested in discussions of the nature of reality, there are other fields for t...

@mattyalanjones427 It means that if all of your mass were converted into energy, the energy output would be much greater than any nuclear bomb we can build. Our nuclear bombs actually only convert a few grams of matter into energy, (For example, the 21 kiloton bomb the USA dropped on Nagasaki con...

@rhcquant ...and then boom, laser!

Haha, in other words you let some of the light out through a hole in one of the mirrors, and a beam of intense light can escape. As long as the 'stimulated emission' from the gain medium (the extra light that the gas between the mirrors is emitting) exceeds th...

Perhaps "beautiful" is not the first word that one would use to describe this interview. Yet beautiful and harrowing and powerful it was.

I love her descriptions of her parents and her relationship to them.

It looked like his string was a spring of some kind. But it works with a normal string, too; it doesn't have to be able to stretch.

The only catch is that the string has to be heavy enough that the air resistance is negligible compared to the momentum, and that the string be flexible rather th...

Cut off at 44:08... it was pretty much over anyway.

He is very clear, but he moves slowly. Good for an introduction! It's great these are online.

Very simple intro to Fourier series. Goes a bit slowly but easy to follow.

@SteffeStolpskott Also, if you want to know more about quantum mechanics, then check out the following awesome video:

...tube.com/watch?v=x5RQ3QF9GG­I&feature=watch_response

I'm sure there are other good expositions, but this one is very clear and complete. You can skip the first 10 minutes wi...