I wasn't there and I'm no ballistics/cosmology/neogeewhizalogy expert, so I can't speak for what really happened. But it seems to me that the supposed hypervelocity pea could have created a crater and small blast to knock the kid over. No one said, or in my lazy skimming, I missed where anyone mentioned the initial trajectory possibilities. An object entering perpendicular to the atmosphere would experience far less drag than an object entering at an oblique angle. I think NASA knows a thing or two about that.
Is it simply that the 1950's meteor was an oblique angle trajectory while the smoting (had to use that word again) meteor was closer to perpendicular?
Not to be completely anal, but the conical command module was essentially the capsule that returned to earth. The cylindrical service module (where the infamous LOX tank exploded on Apollo 13) had the gimballed J-2. Otherwise, right on.
All of the main engines on the three stages of the Saturn V, along with the main engine on the Service Module were mounted on gimbals, as are the three main engines on the Shuttles. I suppose the LEM used similar technology, but I don't feel like checking. Each of the RCS thrusters on the Service Module consisted of four nozzles at 90 angles. For Apollo geeks/modellers, here's a site absolutely loaded with detail shots of the Saturn V, including gimbals;
http://www.apollosaturn.com/
Ever Hear of OBD-II Emissions Testing?
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Hack Your Car
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Just wait until it comes to your state. Instead of sniffing the exhaust while the vehicle runs on a dynamometer, the PCM on 96-up vehicles is hooked up to a scanner. The scanner looks to see how many readiness monitors are not set. Depending on the year, it can be as few as one. Just because the check engine light is out doesn't mean that the vehicle will pass.
Here's a good place to start;
http://www.obdiicsu.com/
Take a look at the drive traces to see what it's like to get certain readiness monitors to pass. The tuner crowd better find a good source for counterfeit stickers!
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I wasn't there and I'm no ballistics/cosmology/neogeewhizalogy expert, so I can't speak for what really happened. But it seems to me that the supposed hypervelocity pea could have created a crater and small blast to knock the kid over. No one said, or in my lazy skimming, I missed where anyone mentioned the initial trajectory possibilities. An object entering perpendicular to the atmosphere would experience far less drag than an object entering at an oblique angle. I think NASA knows a thing or two about that. Is it simply that the 1950's meteor was an oblique angle trajectory while the smoting (had to use that word again) meteor was closer to perpendicular?
Yay for engineering. The science of stardust is just beginning.
Stupid ME! As noted elsewhere in this thread, the CSM (command service module) J-2 main engine was not gimbaled.
Not to be completely anal, but the conical command module was essentially the capsule that returned to earth. The cylindrical service module (where the infamous LOX tank exploded on Apollo 13) had the gimballed J-2. Otherwise, right on.
All of the main engines on the three stages of the Saturn V, along with the main engine on the Service Module were mounted on gimbals, as are the three main engines on the Shuttles. I suppose the LEM used similar technology, but I don't feel like checking. Each of the RCS thrusters on the Service Module consisted of four nozzles at 90 angles. For Apollo geeks/modellers, here's a site absolutely loaded with detail shots of the Saturn V, including gimbals; http://www.apollosaturn.com/
Just wait until it comes to your state. Instead of sniffing the exhaust while the vehicle runs on a dynamometer, the PCM on 96-up vehicles is hooked up to a scanner. The scanner looks to see how many readiness monitors are not set. Depending on the year, it can be as few as one. Just because the check engine light is out doesn't mean that the vehicle will pass.
Here's a good place to start;
http://www.obdiicsu.com/
Take a look at the drive traces to see what it's like to get certain readiness monitors to pass. The tuner crowd better find a good source for counterfeit stickers!