Getty Images
Young skater boards up lonely desert road (slow-motion)
Young skater boards up lonely desert road (slow-motion)
Getty Images
Young man skateboards up lonely desert road (slow-motion)
Young man skateboards up lonely desert road (slow-motion)
Getty Images
Young boys race across the sand on Brazilian beach
Young boys race across the sand on Brazilian beach
Getty Images
Young skater boards down a lonely desert road
Young skater boards down a lonely desert road
Getty Images
Orange stock-car driver passes red race-car in the curve and takes the lead
Orange stock-car driver passes red race-car in the curve and takes the lead
Getty Images
Orange stock-car driver gains on and passes red race-car in the curve, takes the lead
Orange stock-car driver gains on and passes red race-car in the curve, takes the lead
Getty Images
Orange stock-car driver passes green and closes in on red race-car
Orange stock-car driver passes green and closes in on red race-car
Getty Images
Young skater boards down a lonely desert road
Young skater boards down a lonely desert road
Getty Images
Soccer ball bounces off wall, defender heads it out of danger in local football match
Soccer ball bounces off wall, defender heads it out of danger in local football match
Getty Images
Latino man chops wood forcefully with sickle in third-world country
Latino man chops wood forcefully with sickle in third-world country
Getty Images
Latino man chops wood with sickle in third-world country, kicks log in half
Latino man chops wood with sickle in third-world country, kicks log in half
AFP News Agency
CLEAN : Kinetic art exhibition at Christie's Mayfa
CLEAN : Kinetic art exhibition at Christie's Mayfa
Curated Video
Philippines - Barredo
Barredo / recent / Manila, Philippines / recent / ENT 3
Junk artist Barredo makes treasures out of trash
Waste not want not is the motto of Philippino sculptor Gabby
Barredo. The environmentally-friendly artist has managed to forge
works...
Crash Course
Crash Course Physics #6: Friction
In today's episode of Crash Course Physics, Dr. Shini Somara tells us about static and kinetic friction; how they work and how they're different. [10:58]
Khan Academy
Khan Academy: Nucleophilicity and Basicity: Nucleophilicity vs. Basicity
Nucleophilicity vs. Basicity. The difference between what it means to be a nucleophile and a base. [12:48]
Sophia Learning
Sophia: Sliding Friction
This video presentation explains what sliding friction is, and how it is experienced. [5:32]
PBS
Pbs Kids Design Squad: Can a Bike Power a Blender?
Pedal power is used around the world to create electricity. Watch as Nate repurposes a bicycle into a blender-cycle. Smoothies anyone? [3:57]
Khan Academy
Khan Academy: Conservation of Energy
Using the law of conservation of energy to see how potential energy is converted into kinetic energy. [10:07]
Khan Academy
Khan Academy: Question 3 A: 2015 Ap Physics 1 Free Response
Graphing energy versus position for a block accelerated by a spring and stopped by friction. [7:45]