The answer is....republicans. Obama had proposed, and funded, high speed rail along the east coast,through Ohio,,,all destroyed by republicans.

Eh, I'm not sure about that. Actual airflow is the same as whatever the small fan can move. The Venturi effect would just make the higher velocity airflow through the small fan channel into a lower velocity flow through the larger (main part) channel (it's basically a complicated diffusor). The actual rate of flow is the same. You probably actually lose a fair amount of efficiency because of all the ducting and diversion. I would also guess that small, high-speed fans aren't as efficient as larger low speed fans for the same airflow.

That isn't to say it isn't a cool design, though. But yeah, for just getting the job done, a box fan is probably more efficient and effective.

That was a cool one. He hasn't gone crazy with the high speed camera in awhile.

That's BS.

With a 5 round maximum capacity you're going to be reloading a lot and there's no reasonable argument why anyone needs more for hunting (and home defence is a red herring).

I think the whole law/culture issue addressed above is actually linked. Take the example of the Autobahn which is very much a parallel. Germans made a law saying you can drive as fast as you want on certain stretches of highway, a culture of high-speed driving developed, people die. The majority in Germany wants to do away with them, but the 10% who want to drive recklessly in their BMWs and Mercedes along with the manufacturers fight new legislation every time.

The law created the culture, and now the culture is preventing the laws from being changed. Just as in the US, the cycle has to break somewhere. Government can't legislate the culture, but they can change the laws and if the US ever gets to a point where guns aren't in the hands of whoever wants one then the argument for needing a 'home security' weapon drops. People feel safer, there are fewer shootings and the whole situation de-escalates.

I'm not saying barring suspected terrorists from owning firearms will accomplish that, but it would be a (very) modest start in the right direction.

Structural failure isn't the only risk. The point of modern safety features is to reduce the impact of the crash on the occupants. If you crash an army tank into a large tree at high speed, the tank itself is likely to be fine but the occupants probably won't. In your case, whether your car is better or worse than the average modern car in a crash is probably "it depends".

How does your car compare to the Discovery in http://videosift.com/video/Crash-tests-SUV-vs-Minivan-Which-one-does-better ?

Interesting. Does that account for the limits of the human body in terms of (long-term) exposure to G-forces from all that acceleration?

I'm sure we could use nukes to propel a craft to very high speeds very quickly, but I'd wager that limiting the acceleration to human tolerance would require that to be spread out over a much longer span of time.

A quick google search suggests that nobody really knows exactly how much we could handle in terms of long-term exposure to acceleration G-forces:
https://space.stackexchange.com/questions/6154/maximum-survivable-long-term-g-forces
(apparently the highest load we've ever tested on humans is 1.5G for 7 days -- without doing any math I'd wager we'd need a lot faster acceleration than that for a lot longer span of time to get to even 1/10th of c)

It's a maglev monorail? I thought this was going to use pneumatic tubes and stuff. I'm all for high speed rail, but I'm much more for Jetsons-style wooshy tube transportation.

I've said this a few times but it never fails to amaze me.

As i understand it, this incident was preceded by a high speed chase which endangers everyone, the officers, the suspect and everyone on the streets. Adrenaline is high and i even understand maybe wanting to whack the guy.

But for the love, you have to KNOW their are helicopters and people recording you. Its absolutely inescapable.

So that leaves monumental stupidity and somehow not realizing this fact, or they simply have zero fear of reprisal or consequence.

I'm not really sure there is a third option.

"Even if the bike wasn't stopping, he wasn't endangering anyone"

Speeding, multiple double yellow line passing, aggressive lane changes, high speed cornering. This guy WAS endangering others.

Some and I stress only some rocket jockeys are complete douches when it comes to overstepping the bounds which this guy WAS doing.

"so there was no reason to hit him"

I agree, the take down was ridiculous.

Well there you go, even Wikipedia says dogfights haven't existed for some 25 years So the F-35 doesn't need to have maneuverability as it's primary design feature.

I think I see why we are disagreeing - we have differing definitions of dogfights, if you read the air battle encounters from the gulf war you'll see that it wasn't dogfighting in the traditional sense where planes are doing all sorts of fancy aerobatics to try to use guns on each other like WW1.
(And wikipedia has this defintion problem too because it seems to call all air engagements a dogfight).

It was all BFM at a fairly long ranges in the order of 10 miles. (which is considered close range, since a plane takes several miles to make a turn at high speed).

Not one guns kill in the air. A few close range missile kills, but mostly long range AIM7's. (well techinically it's called medium range, but it's it's still like 20-30miles).
There's a good reason why fighter planes carry one about 7 seconds worth of bullets, and only 2 close range missiles vs 6+ long range missiles.

https://en.wikipedia.org/wiki/Air_engagements_of_the_Gulf_War

As has been said, both are douches (and depending on the state, both were guilty of driving infractions). Very real chance that by brake-checking, the tailgater is going to swerve into someone else (like the guy coming up from the on ramp). Even if that didn't happen, (s)he almost flew into oncoming traffic after losing control, which again would have caused damage to other cars and possible injury to innocent bystanders.

And even if the tailgater hadn't have lost control, the situation is escalated and you're looking at a possible road rage incident with the tailgater retaliating--which actually happened to me when I purposely drove slower (no brake-checking) while being tailgated. Guy jumped out of his car at the next traffic light and tried to get me out of mine to start a fight. I drove off when the light turned green and he actually chased me down, passed me, then skidded sideways and blocked the whole road with his car, again jumping out and wanting to fight. I backed up, turned around, and drove straight to the nearest police station (which was thankfully just a half-mile away)--he didn't follow me into the lot and just kept driving.

Now, if that guy had had a gun, I would almost certainly be dead. The smugness that comes from "teaching someone a lesson" is not worth the potential injury you may cause yourself or others when 2-ton vehicles travelling at high speeds are involved. As has been said, the proper response in these situations is to safely get out of the way and possibly call the police if the driving seems erratic enough to warrant it.

About the X-1 being the first manned vehicle to break the sound barrier: there are records of Bf 109Fs surpassing 950km/h TAS in a dive when they tried to solve the issue of elevator and aileron lock-ups at very high speeds. I wouldn't call it far-fetched to assume that both G10 and K4 could surpass Mach 1 in a high-altitude dive without the wings shearing off. Alas, no proof. Just an interesting bit of aviation.

A subway system is very expensive to build and they are all over the world. Also, subway lines are single lined, so when a failure occurs, the whole line, or a full section between two nodes is halted.

There is an interesting project in Quebec to develop a kind of intercity high-speed monorail system : http://www.trensquebec.qc.ca
it is said to be cheaper than a high speed train. It would use shuttles and be installed above the expressway.

We want more monorails!

If you are a cop in an extended high speed chase after a guy in a stolen car and then you catch him, I can see where the adrenaline will push you over the edge. It doesn't excuse the behavior, but I have trouble falling asleep after 30 minutes of playing Battlefront I'm so amp'd up. I can't imagine being in their shoes.

Also, this isn't Rodney King. Rodney King was dragged out of his car and beaten for being black. This man ran from the cops in a stolen vehicle and almost killed 2 of them. Whether the color of his skin came into play we can only speculate and review the record of the officers involved. My suspicion however is that if he had been white he would have gotten about 1/2 the beating he took.
Either way, the officers involved were wrong. They are not judge and jury. Seems like some cops in this country have forgotten that. But there are still a lot of good ones.

Awesome! Thanks for the link, I had missed that one.

About the only way to improve on that would be if Mythbusters or somebody did a large amount sliced thin to maximize surface area, built a cage sturdy enough to keep it submerged, and then filmed it (underwater) in ultra high-speed...