Some people's most recent African ancestors lived there within the last few hundred years and others were many millenia ago. Of course then there are the Berbers that are a fair-skinned African tribe :) In general being real specific about how a person can tell in general what race a person is is probably akin to creating Strong A.I., but that doesn't mean people can't do it. It'd also be hard to describe exactly how people can tell the difference between a Escher painting and a Dali, or a Beethoven and a Mozart song.

In a double blind study, I believe people could do a pretty fair job of sorting say a hundred pictures of people who's families have lived in certain parts of the world for the last 20 or so generations, at least as to what continent they were from.

There is a scientific device to measure albedo: fresh snow measuring .9 and charcoal .4, it would be a simple matter to measure the albedo of all the finalists from the last few olympics in swimming and sprinting and I believe there would be a strong correlation between albedo of skin and whether the person was a swimmer or sprinter.

For the record I don't consider myself racist, maybe it's not even a good thing that the brain can organize people by race, but I don't see any point in pretending it can't.

That's funny, you can't put your finger on what exactly the difference is between the way the majority of swimmers look and the way the majority of sprinters look... hint the sprinters are about a 100 shades darker lol. I must seem psychic to you that I can tell whether someone either is from Asia or has Asian ancestors. I can even use my magic to tell whether they're from Korea, vietnam, Japan, or China. Maybe you also can't tell the difference between a golden retriever and a yellow labrador? Or maybe you just don't like the use of the word race to describe those obvious physical differences, that last one is a genuine question.

An amp is 6.24150965(16)×10^18 (1 coulomb) electrons flowing past a point in one second.

I keep trying to think if you are right that there will be no need for the dedicated graphics card, the way the FPU moved into the CPU a while back.. What would you put in the PCI-Express socket? Did I read you right that you think it would be another CPU? I wonder what kind of specialization it would have.

You can see why the Babylonians picked 360 degrees for the circle, you can divide it up in so many different ways.

The feeling I get is that all the normal motion of the actors and whatnot seems to pause while the camera pans. To me it almost looks sort of like bullet time in the matrix.

It makes me think someone should make something where the whole goal is for building logic, like a an actual circuit with transistors and all that that you could walk around in. Maybe it could even output the design to be actually fabricated. Or maybe you just have blocks of p-type or n-type doped material and dialectric that you build everything out of. I've seen enough of these types of videos to think there might be a demand for one that works a lot faster than what they're doing with redstone.

I always think it's funny to wonder why Da Vinci didn't invent the bicycle before even trying to build an airplane. It seems he had all the ideas for pedal powered mechanics but never thought to apply them in the simplest way.

A much simpler design and more compelling what if to me is if you start with the idea that you can build logic gates with plumbing technology that's been around for thousands of years. A nand gate is where the water level rises in two containers and two floats in each one cut off the flow of a third.

I'm left handed and legally blind so I really have to contort myself to get close enough to see what I'm writing and write with my left hand in those right handed desks.

I think he was talking about the fact that left handed hitters find right handed pitchers easier to hit off of and most of the pitchers are right handed. One thing I was thinking a while back is I wonder if there has ever been a switch pitcher? It would be valuable for a pitcher to be able to pitch with either hand as different handed batters came up.

It's still not going to magically fix the fact that the game is designed for a xbox360 controller and not a keyboard and mouse, though.

I think that's what the platypus used; ended up too confusing.

I think that nowadays with so much hard-drive space each application could just come with every file it needs to run in its own folder. I mean nowadays who cares if you have 10 copies of the same library on your hard-drive versus the headaches of trying to share libraries between programs.

Obviously you just start engraving the circuitry on the surface of the atom.