Stream Now 
Shows
Your At-Home Happy Hour Is Here!
Get ready for Wednesdays packed with Moonshiners, Master Distiller and Smoke Ring
How to Be a Top Notch Ghostbuster
America’s Fastest Racers Return to the Track on STREET OUTLAWS: NO PREP KINGS
A First Look at STREET OUTLAWS: NO PREP KINGS
The Brown Family is Dedicating the New Season of Alaskan Bush People to Patriarch Billy Brown
The Hunt for Gold Intensifies in Gold Rush Season 12
All's Fair in Love and Dirt this Season on Gold Rush
Explore the Paranormal with Expedition X
Photos: Deadliest Catch Season 17
See All Shows
DNews
The King of Chunks Has Been Crowned
The Ivory-Billed Woodpecker is Officially Extinct, Along with 22 Other Species
There’s a Black Rhino Baby Boom in Zimbabwe
Bee Swarm Kills 63 Endangered Penguins
Climate Week 2021 Shines a Light on the Climate Crisis
The Acrobats of the Skunk World
Using DNA to Reunite an Orphaned Elephant with her Mother
Giant Pandas are No Longer Endangered
Giraffes Have Daycares, Lunch Buddies, and Yearslong Relationships
NASA is Helping Save Sharks
See All DNews
Nature
Do Octopuses Dream?
Ancient Rock Art of the Mojave National Preserve
Revealing the Ancient Rock Art of the Mojave
The King of Chunks Has Been Crowned
Tank the Sea Turtle's Gotcha Day
The Ivory-Billed Woodpecker is Officially Extinct, Along with 22 Other Species
Daddy-Daughter Animal Rescue Adventure
We’re Weighing In On The Heaviest Competition of the Season: Fat Bear Week
Fat Bear Week is Back and Bigger than Ever
Rare Whales Spotted in California
See All Nature
Exploration
The First All-Black Team Will Climb Mount Everest Next Year
3 Activists Making Noise for the World
Explore Landmarks Along the TransAm Trail
Get Lost in America's Enchanting Forests
Tour Tokyo by Photograph
8 Beaches that will Take Your Breath Away
Tour San Francisco by Photograph
Tour Istanbul by Photograph
Protecting The World's Elephants
Tour Zurich by Photograph
See All Exploration
Space
Meet Some Out of this World Women Dominating Space
The Milky Way Broke its Arm (But is Totally Okay)
William Shatner Becomes Oldest Man to Travel to Space After Successful Blue Origin Space Flight
William Shatner's Journey to Space with Blue Origin
When Did the First Stars Shine?
William Shatner is going where no 90-year-old has gone before
Meet the 15 Earthshot Prize finalists
The Cost of Global Satellite Internet: Worse Astronomy
Watch Out! Amateur Astronomer Watches as Jupiter Gets Whacked
Winchcombe Meteorite Unlocks Secrets of Early Solar System
See All Space
Science
Global Meltdown: Scientists Race to Gather Crucial Climate Data from Glaciers
William Shatner is going where no 90-year-old has gone before
23,000-Year-Old Human Footprints Discovered in America
A 400-Year-Old Coral Offers Hope for the Great Barrier Reef
Facial Recognition for Grizzly Bears
Disaster Zone Technology Gives Rescue Missions the Edge
2 New Species Of Dinosaurs Found In Northwest China
How a Whale Song is Helping Scientists Map the Seafloor
A Dragonfly's Highly Evolved Flying Technique is Perfect for Drones
When in Roam, a Woolly Mammoth’s Tusks are the Map
See All Science
Motor
Hydrogen Ready to Ignite as Transport Network and Technology Takes Off
Catch-22: How the Clean Energy Industry is Perpetuating Deep-Sea Mining
Are Electric Highways the Way of the Future?
Solid State Batteries Promise Long Life and Rapid Refuel Electric Vehicles
Electric vs. Hydrogen: The Pros and Cons of Greener Transportation
Car Industry Takes a Hit Due to Chip Shortage
Flame Out: UK Brings Forward Combustion Engine Car Ban to 2030
Jesse James is Back with a New Monster Garage on discovery+
The DMC DeLorean: The Car Behind The Madness
The DMC DeLorean: Photos of the Hollywood Icon
See All Motor
Schedule
More
Cancel

Mythbusters

20 Seasons
Use your tv provider
S3 E9 11/10/04

Boom Lift Catapult

Adam Savage and Jamie Hyneman find out what it takes to turn a 30,000-pound boom lift into a medieval catapult. Then it's air conditioning vs. open windows as they investigate the most fuel-efficient way to keep cool in the car.

← Previous Episode
Next Episode →

The Latest

Remembering Mythbusters' Grant Imahara

Seasons

Episode   1

Myths Revisited

Episode   2

Scuba Diver and Car Capers

Episode   3

Ancient Death Ray

Episode   4

Elevator of Death

Episode   5

Beat the Radar Detector

Episode   6

Quicksand

Episode   7

Exploding Jawbreaker

Episode   8

Ping-Pong Rescue

Episode   9

Boom Lift Catapult

Episode   10

Exploding House

Episode   11

Ming Dynasty Astronaut

Episode   12

Brown Note

Episode   13

Salsa Escape

Episode   14

Exploding Port-a-Potty

Episode   15

Is Yawning Contagious?

Episode   16

Cooling a Six-Pack

Episode   17

Son of a Gun

Episode   18

Breaking Glass

Episode   19

Jet Pack

Episode   20

Killer Brace Position

Episode   21

Bulletproof Water

Episode   22

Border Slingshot

Episode   23

Killer Tissue Box

Episode   24

Escape Slide Parachute

Episode   25

MythBusters Revisited

Episode   26

Chinese Invasion Alarm