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Videos (69) | Sift Talk (1) | Blogs (5) | Comments (105) |
Videos (69) | Sift Talk (1) | Blogs (5) | Comments (105) |
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From mach-20 glider to humming bird drone
Mach 20 glider, mach 20 thermonuclear missile.
You say potato, I say potato.
Remote control hummingbirds are neato,
Running cheetah-bots are scary.
Let's skynet the whole thing off.
From mach-20 glider to humming bird drone
>> ^rychan:
"...her agency has created by not worrying that they might fail."
Well, that is completely contrary to what I know about defense research funding.
That is why DARPA exists.
I was most curious about the gecko-like sticky pad. Too bad I got no questions about that. I also liked the image of the internet. I would love to work there as I have some unique insights and stuff I'd like to try.
FA-18 "Super Hornet" Breaks Sound Barrier
Nope. We're correct.
http://en.wikipedia.org/wiki/Vapor_cone
quote: "A common misconception is that this effect is the aircraft breaking the sound barrier."
>> ^juliovega914:
>> ^Payback:
>> ^IronDwarf:
It's not the sound barrier breaking: the sound is just the sound of the jet going by extremely fast and the shockwave comes from the vapor pressure of jet flying that low over water. Military jets are only allowed to break the sound barrier over specific areas, and definitely not over areas where there are large groups of people.
Still a cool video.
QFT. You wouldn't hear the plane before it passed if it was anywhere NEAR Mach 1.
Actually, I am pretty sure you guys are wrong. That shock collar like that will only happen at transonic speeds.
http://en.wikipedia.org/wiki/Prandtl%E2%80%93Glauert_singularity
The sound of the jet you hear as it approaches I suspect is the sound of another jet off camera, or something. FYI, for air shows, they do quite frequently accelerate past the sound barrier.
Edit: fixed wiki link
FA-18 "Super Hornet" Breaks Sound Barrier
>> ^Payback:
>> ^IronDwarf:
It's not the sound barrier breaking: the sound is just the sound of the jet going by extremely fast and the shockwave comes from the vapor pressure of jet flying that low over water. Military jets are only allowed to break the sound barrier over specific areas, and definitely not over areas where there are large groups of people.
Still a cool video.
QFT. You wouldn't hear the plane before it passed if it was anywhere NEAR Mach 1.
Actually, I am pretty sure you guys are wrong. That shock collar like that will only happen at transonic speeds.
http://en.wikipedia.org/wiki/Prandtl%E2%80%93Glauert_singularity
The sound of the jet you hear as it approaches I suspect is the sound of another jet off camera, or something. FYI, for air shows, they do quite frequently accelerate past the sound barrier.
Edit: fixed wiki link
FA-18 "Super Hornet" Breaks Sound Barrier
>> ^IronDwarf:
It's not the sound barrier breaking: the sound is just the sound of the jet going by extremely fast and the shockwave comes from the vapor pressure of jet flying that low over water. Military jets are only allowed to break the sound barrier over specific areas, and definitely not over areas where there are large groups of people.
Still a cool video.
QFT. You wouldn't hear the plane before it passed if it was anywhere NEAR Mach 1.
FA-18 "Super Hornet" Breaks Sound Barrier
Tags for this video have been changed from 'f18, jet, airplane, speed, mach 1, shock wave, halo, supersonic, fly over' to 'f18, jet, airplane, speed, mach 1, shock wave, halo, supersonic, fly over, flyby' - edited by calvados
The Channel Depot (Sift Talk Post)
what about a *speed channel or something dedicated to things like car chases or mach II sound barrier breaks. Just spittin it out.
*speed for when things go fast
New railgun fires round 7km AFTER its punched through steel
Screw the killing machine, I want a camera that can track a six inch object traveling at Mach V!
..and record the image in beautiful slowmo color!
RamJet Pony Ride
What?! Not even Mach 1? Boring ride.
Space Shuttle Discovery's Final Launch As Seen from Airplane
I was wondering how fast that thing goes....
One minute into take-off it's already going over 1,000 miles per hour. Re-entry is done at the hypersonic speed of Mach 23
Klingon Rapper?
vam 'oH QaQ tlhej tlhIngan ghajtaH vaj mach mu'mey jIH ta'ta' ghobe' tay'moH vam ghaHta' DuH
Rally To Restore Sanity - Closing Speech
>> ^Tymbrwulf:
Probably! Were you the person with the witty sign?
Hah! I wish; We barely got there in time to do anything cool. I was on 7th and the only time I saw anything on the stage was when Colbert's paper mache' guy was out there. It definitely was cool to be around so many regular people. We walked past the cops' detention bus brought over for the event after all was said and done, and unsurprisingly the thing was empty.
F-15 Strike Eagles Low Fly Through Mach Loop
>> ^rottenseed:
Dude I hear this every day at my office. I work 2 miles from Miramar MCAS. It gets really really annoying. However, sometimes they do cool things like fly a 20 helicopter fleet overhead. Fleet? Is that the right word? Swarm? School? Flock? Taxpayer waste?
I think the technical term is either a fuck ton, or in the case of the prop heads, an ass load.
Test of scramjet-powered X-51A engine
"‘We equate this leap in engine technology as equivalent to the post-World War II jump from propeller-driven aircraft to jet engines,’ Mr Brink said.
A passenger plane traveling at Mach 6 would cut the flight time from London to Sydney to little more than two hours.
Dr Andrew Coates, of the Mullard Space Science Lab at University College London, said the effects for passengers aboard a scramjet-powered plane would be 'more akin to space travel than airline travel'.
They would need protective clothing to counteract the effects of the G-forces pressing on the body during acceleration to 5,000mph."
http://www.dailymail.co.uk/sciencetech/article-1283078/Experimental-scramjet-hits-Mach-6.html
Test of scramjet-powered X-51A engine
Air Force news video on an upcoming test of the Mach 6 X-51 WaveRider.