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Comment Re:therefore the roads should be redesigned (Score 1) 576

Many people say that the problem is the speed limit. It may be better to look at this from the other side: If, for proper safety of the neighborhood, the cars should only be going 25 mph, then the roads should be redesigned such that cars can only go 25 mph.

This can be done several ways:
- speed bumps
- adding islands to intersections that must be driven around
- extending curbs into the street to make straight streets curvy
- blocking off some streets (or making some parts one-way)
- etc.

Comment POE + USB Lipo adapter (Score 2) 81

It seems like you just need to combine your POE adapter with a USB "lipo" adapter.
The latter are meant to attach to a lipo battery (7.4V - 22.2V) and provide 5V for USB charging.
(Of course, you can use any DC power source as input, not just lipo batteries.)
You can search Ebay for "usb lipo mobile charger" to find them, starting at $5 for basic ones.

Comment "Big Nose" problem. (Score 1) 79

The displays on this headset are angled apart, which means that both eyes cannot see both edges of both displays. If the left eye can't see much over to the right (and correspondingly, the right eye can't see much over to the left), then this display will suffer from the "big nose" problem. It's like when you place your flattened hand perpendicular to your face between your eyes.

The number I'd like to see is what the 100% overlap FOV is. That is, what's the FOV where both eyes can see the same imagery?

Comment Re:Link to the drones (Score 1) 98

You should check out HobbyKing.com to see what kind of stuff is available (under "multirotors"). You can buy the parts at lots of places. I frequent Ebay to find deals, but there are many specialty online stores that sell this stuff.

You should also visit rcgroups.com and read up (again under "multirotors") to see what the community is doing and find reviews and answers to questions.

You can buy prebuilt, or you can buy parts and assemble. Figuring out what works with what can be a bit of a pain, since descriptions can be sparse. But most questions can be answered by searching rcgroups.com.

If you really shop for bargains, you could put together an entire 250 FPV setup for about $250. That's for the craft, r/c transmitter, camera with transmitter, video receiver with display, and battery with charger. But $300 might be a more realistic starting budget.

Comment Re:Prop shrouds (Score 2) 98

First off, these races should be held on closed courses with spectators kept well out of the crafts' potential paths.

Second, these are usually 250mm/10" class drones that are fairly small. Plastic props are usually required (no carbon fiber). Sure, they'd hurt if they hit you, but should do little damage (usually).

Comment Re:Two words (Score 1) 294

That's what I was thinking. If Google can make an app that tells you how to drive a car from point A to point B, then making an app that tells you how to drive a train should be relatively easy.

The app doesn't even have to tell you anything if you're already doing your job right. All it has to do is pipe up when it notices you failing to slow down or doing something else unsafe.

Having something like this in the driver's cab would be much better, in my opinion, than putting a second person there.

(Now, I suppose you may have intended more than this: such as the app actually driving the train, or Google taking over the train system. Those might also be solutions, but ones with less chance of happening soon.)

Comment It's not the keyboard; it's the wrist rest (Score 1) 452

What makes the difference in comfort and ergonomics is not so much the keyboard itself, but how you've got it set up, and particularly the wrist rest you use.

I'd recommend getting a "wrist rest platform" (a wrist rest with a platform that extends under the keyboard itself). The benefit over one without a platform is that it's less likely to get pushed away from the keyboard.

You should avoid resting the bottoms of your wrists on a hard surface for long periods of time (especially while typing).

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