More Videos Online
Time Warp: Dirt Bike Traction
The tires of a motocross bike play an important role in turning; their treads cut into the dirt and give them the traction (i.e. the friction) needed to stay on course.
Added: Apr 28, 2009
Views: 4208 Views
Runtime: 01:15
Related Videos
-
Dirt Bike vs. Newton's LawIn order to successfully navigate a turn, a motocross racer must tangle with Newton's first law of motion: the bike wants to continue along a straight path and it takes a strong effort to steer it through. So to pull off a turn, riders can briefl ...Time Warp (01:23)
-
Dirt Bike Sideways JumpMotocross bikes are built to be lightweight -- this makes them easier to maneuver during aerial stunts like this one, which a rider can accomplish by shifting his or her center of gravity.
Time Warp (00:40)
-
Dirt Bike JumpThere are a lot of factors that need to be equated to determine how successful a motocross jump will be -- the angle of the jump, the speed at takeoff, the potential height and the desired length of time airborne are all among the necessary consi ...
Time Warp (03:02)
-
Dirt Bike AirborneEven while airborne, motocross riders can adjust their altitude and attitude by accelerating the rear wheel -- a trick which also improves the landing by pulling up the front wheel and providing a quick acceleration upon contact.
Time Warp (02:49)
-
Dirt Bike WipeoutSometimes motocross riders wipe out on hard turns. This can be caused by a number of events -- among them: leaning too far or braking and accelerating too rapidly.
Time Warp (01:07)
-
Roast Chicken CarnageWatch a propeller totally annihilate a roast chicken, in slow motion.
Time Warp (01:38)
-
Tiger Leap Close UpA tiger leaps up onto a platform, using exactly the amount of energy it needs to reach the platform and extending its claws as brakes.
Time Warp (00:41)
-
Erin Toughill FightsMixed martial arts fighter Erin Toughill takes on Chris Larkin, using the force generated by her hips to add power to her blows.
Time Warp (00:54)
-
Water DropletA water droplet falls as a sphere because of surface tension. That same tension can keep it from breaking and even allow it to bounce off a miniscule layer of air.
Time Warp (00:32)
-
Motorcycle SurferA motorcycle surfer rides on one wheel the same way he rides on two -- by adjusting his center of gravity. In the case of a wheelie, his center of gravity is over the back wheel.
Time Warp (01:00)
-
Concrete TollUsing tap dancer Baakari Wilder as its subject, Tekscan Inc. sensors show how concrete vs. wood takes a toll on the body.
Time Warp (01:17)
-
Jump InversionPole jumpers must actively push themselves from the pole, kicking and extending their knees over the bar.
Time Warp (00:39)
You Might Also Like
-
Bullet vs. Watermelon...In case you still can't believe that a .50 caliber round shot from a Desert Eagle is INCAPABLE of penetrating 25 watermelons, here's the proof.
MythBusters (01:00)
-
Car Skip High SpeedWatch in slow motion what happened when the MythBusters put the car-skip scene from Cannonball Run to the test.
MythBusters (01:00)
-
Dumpster Diving High Speed 3See the view from below as Adam Savage leaps in slow-motion from a rooftop into the dumpster below.
MythBusters (01:00)
-
Seesaw Saga High Speed 1The MythBusters take a mega-myth straight from the fan site at Discovery.com: Could a skydiver whose parachute failed to open hit a playground seesaw and send a small girl flying seven stories high?
MythBusters (01:04)
-
Seesaw Saga High Speed 3The MythBusters take a mega-myth straight from the fan site at Discovery.com: Could a skydiver whose parachute failed to open hit a playground seesaw and send a small girl flying seven stories high?
MythBusters (01:02)
-
Exploding Bumper High SpeedSee in slow-motion the MythBusters test whether an exploding aluminum bumper could shoot off like a cannonball.
MythBusters (00:43)
-
MacGyver Magic Bullet High...The Mythbusters test to see if their TV mentor really could have blown off a cargo-ship steel door by packing the lock with the powder from six bullets and setting off the blast with a revolver handle.
MythBusters (00:46)
-
Match Head Cannon High SpeedAdam Savage and Jamie Hyneman test to see if match heads alone have the explosive punch to fire a homemade cannon.
MythBusters (00:55)
-
Snowplow Split High Speed 1Watch in slow motion what happens when the MythBusters test whether a snowplow, hit head-on, will split a vehicle in two.
MythBusters (00:35)
-
Snowplow Split Angle 4In Alaska, the MythBusters test whether a car that collides head-on with a snowplow will be split in two from bumper to fender.
MythBusters (01:05)
-
Bus Flip High SpeedDoes shifting the center of gravity in a bus going 50 mph enable it to make sharp turns without flipping over (like in that famous movie)? The MythBusters are on the case.
Mythbusters (02:22)
-
Compact-Compact Rocket-Sled...See the super slow-motion results when Adam and Jamie use a rocket to test the old tale of a two-truck head-on collision, and the wee car caught in-between.
MythBusters (05:00)
Shop Discovery Channel
Sci-Fi Science Seasons 1 & 2 DVD
$39.95
$19.99
Through The Wormhole Season 2 Special Edition DVD
$29.95
$24.99
Into The Universe with Stephen Hawking DVD
$19.95
$16.99
-
our sites
-
video
mobile
-
shop
-
stay connected
-
corporate
