Very good episode.
First of all, the opening credits showed Grant, Tory and Jessie in Star Trek uniforms, and Mythbusters goes on a one-week hiatus next week before this "season's" final two episodes air on the last Monday in 2009 and the first Monday in Janauary -preusmably one of them will include the Gorn Cannon myth.
The episode itself, easily one of their better ones.
Jamie and Adam tested two different microboal myths. The first one being that there's rat-urine on soda cans, and that that rat urine could be harmful.
They took a "control" sample size of 100 soda cans, sterilized them, and then exposed them to rats to get a "control" of what rat urine looks like under a black-light and to later test. They then bought 100 "random" soda cans froma round the city and tested those.
The results, in the end, found no harmful bacteria on the soda cans and absolutely no rat-urine components.
One thing I wish they had tested is if rat urine is "harmful." I've always heard and been told that urine -at least human urine- is mostly sterile as our kidneys make for pretty damn good filters. So even if they DID fid rat urine on the cans I wonder if it would've been possible to get sick from it?
The other myth they tested was comparing how "dirty" everyday objects were (hotel room remote, kitchen sponge, light switch, keyboard, cell phone) compared to a toilet seat. (The myth being that the toilet seat would be far cleaner than any of these other objects.)
It's no surprise that the toilet seat contained the fewest number of bacteria and was on the lower end of "harmful" bacteria. First of all, toilet seats are cleaned fairly reguarly. Secondly people usualy clean their asses at the very least once a week, thirdly your ass is just skin. The most bacteria-ridden object they found was the sponge which, again, is little surprise. It's exposed to nasty shit all of the time and being damp certainly does it no favors. I've seen it reccomended to nuke your sponge for a few seconds to "sterilize" it.
The "Junior Mythbusters", again, got the far more entertaining myth with duplicating a scene from one of the Cannonball Run movies, the one where fleeing fromt he cops one of the Cannonballers skips his Lamborghini Countach across a pond like a stone.
They first tested it by duplicating the circumstances in the movie (more on that in a bit) by running a car of similar demensions and weight distribution to the Lamborghini at 50 miles an hour (what they estimated its speed to be from studying the movie) and then ramping it across a "pond" of similar size they built. The result? Glorious, but not sucessful.
They then tried to "duplicate the result" first by doing some tests in small-scale and then taking it to full scale. The only major thing they changed was removing the ramp (as it was suggested was there in the movie.) Jessie also gave the car a NOS system to amp up itse speed. The result? Glorious. The car skipped their man-made pond to the other side and weathered the experience well.
I've not much to say on this myth other than it was pretty awesome (both the crash result and the sucessful result) and it's impressive that the barely modified car skipped the pond.
My only issue with their first test is the estimated speed. While it's true the car was only going 50 miles an hour for the movie-stunt it's a fairly well-known fact that movie stunts are done at fairly slow speeds for numerous reasons, the biggest of which being safety. So while the car may have "in reality" been traveling at 50, in the context of the movie it may have supposed to of been traveling faster. Granted, even if it was it seemed that the ramp was more of a hinderance to skipping than a help. Which makes sense, the skipping works at a shallow angle. Something that ramp couldn't provide.
Jessie has grown on me more, she seems to have very laudable mechanic skill (she installed the NOS system into their car) and this episode seemed to suggest Grant was a bit more adept at the remote contolled car (at 100 miles an hour no-less) without any apparent POV system than he was with the bus last week. (Granted, controling a car is a lot different than controling a bus.)
All-and-all a good episode.
Did that second car have its engine in the back? That probably helped, since it wasn't front-heavy
I think both cars were the same model and had rear-engines (with some enigine components under the front-hood. I think the first car went into a nose-dive because of gravity, the ramp gave it so much air it pretty much had no choice but to dip and it didn't dip based on weight but on aerodynamics.
Since, at the very least, both were sports cars much like the falling car beating the ground-car myth they'd be balanced for the best performance.
I agree on your comments re:Jessi/y that her speech is a little too hyper/valley-girl like. When she was doing the "blueprint"/rap sessions she seemed a little bit better than when she was talking to the camera to introduce a segment of the myth.
Last week, though, when she was explaining that they were testing the "movie myth" and not re-creating a stunt she seemed a little more at-east with the camera.