I'm pissed off. I don't care if it only records 1 coordinate per day. I should have every right not to have my location recorded in an unencrypted file without my knowledge, period.

Ok people, the reason this is cool is because he replicated a specific type of factory robot called a 'pick and place delta robot', not because he couldn't think of any other way to sort the blocks. This type of robot is the fastest way to sort and place objects that are coming down a conveyor belt at random intervals and placements.

The fact that the submitter made it sound like you were going to be watching a manufacturing robot does not make this less impressive.

Check out a video of how a real delta robot looks in action, and you can see how cool it is that he was able to achieve this with only legos: Bosch Paloma-D2 Packaging Robot

"2 Al + 2 NaOH + 2 H2O 2 NaAlO2 + 3 H2"

Ohhh, so it actually runs on water! This will change the world for sure!

Since when is this a place to so drastically misrepresent something that the readers only think it's cool because they don't understand it? This happens all the time now. Sensationalism is growing threat to society's collective scientific comprehension.

I'm pretty sure it mostly consumes the sodium hydroxide. At any rate, the aluminum is not the 'fuel source' so the way it's written is definitely wrong. As one of the posters down below said, this is as accurate as saying that my car runs on oxygen.

Chuck Norris can do with with 1 pixel too. But he can also tell you what they had for lunch.

the expanding population of humans and finite supply of oil, along with the exponential increase in our ability to transport information without transporting ourselves. Given these factors, it seems obvious in hindsight that commonplace Mach 2 commercial travel was way too optimistic.

This isn't a concern at all. All you have to do is attach some infrared LED's to your tinfoil hat, and you'll be safe from CCD based cameras along with malicious electromagnetic signals. But seriously, the 'tech infrastructure' (a bunch of cameras?) needed to watch the whole sky would be completely different than what would be needed to watch the whole country. One camera pointed upwards with a wide angle lens would effectively cover many, many square miles of sky area if all you need to do is make out streaks of light. And they would all be spaced out evenly across the country, meaning the vast majority of them would be located in the middle of nowhere. Not even the most evil government regime in history would have any desire for this.

Aerial tramways are a different beast though. They don't go around in circles, just back and forth, so you're limited to having one car make the trip at a time. If they replaced that with a gondola system, I imagine a lot more people would use it. They are more of a novelty than a means of transportation. The longer the trip is, the less efficient a tram system would be. Whereas gondola or chairlift systems have the same throughput regardless of how long they are.

No, they are too small to carry a significant payload or people, and are designed to operate right at the edge of the atmosphere in a very low orbit.

Since when do plants store energy in a way that's efficiently useful to us? You can't build a car that runs off your bags of mowed grass, you can build a car that runs off H2. This is no joke.

All I know is that the speed of his mouth and the speed of my brain were neck and neck the whole time.

Wow, great retort there Anonymous Coward. Don't try to refute anything, just insult the poster. Lemme guess, you have no 'refudations' in mind, you just can't sit there and let someone talk bad about the Republican's and not have a stab at them.

Because real nerds were all required to write a program to demonstrate this in their first CS class.

Not as long as a box of sugar pills can sell for $14 in a drugstore.