Topic: test

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The Stroop Test

After we learn to read, recognizing words becomes an automatic behavior that our brains can process much faster than recognizing colors. For example, say these words: Red. Green. Blue. So what happens when we intro...

Exploring the surface of a comet or asteroid with Hedgehog

When you're exploring a comet or asteroid, you've got to contend with a microgravity environment and some seriously rugged terrain, two huge challenges for a traditional rover. Enter Hedgehog, a jump, spin, and tumble...

SpaceX Crew Dragon Spacecraft – Pad Abort Test POV video

Blast off from zero to 100 mph in 1.2 seconds on SpaceX's Crew Dragon spacecraft during its May 6th Pad Abort Test. The test reached a maximum velocity of 345 mph before the trunk separated, the spacecraft's heat shie...

Demo of the FloWave Ocean Simulator & the AMOEBA wave pool

Filmed by The School of Physics & Astronomy at the University of Edinburgh, this is the FloWave Ocean Simulator, a 2.4 million liter (634,013 gallon) controllable research pool for testing devices and prototypes in wa...

SpaceX’s Falcon 9 crashes & landing – Flights 14, 17, & 20

After completing the launch of a cargo resupply mission to ISS for NASA, SpaceX attempted landing their Falcon 9 rocket on a drone ship. This April 14th Flight 17 video captures their second landing attempt on a float...

Testing Fireworks

How do you know that the fireworks you've made are going to burst in the sky as expected? Test them! In this episode of I Didn't Know That, visit one of the UK's leading fireworks manufacturers as they test the compon...

Testing a Space Rover Under Alaskan Ice

Someday it may be possible to explore below the icy surface of Jupiter's sixth-closest moon, Europa, and if this happens, it could be done with a technological descendant of this robotic rover: NASA JPL's Buoyant Rove...

4-Way Stop vs the Roundabout

What’s more efficient: a four way stop or a European-style roundabout? Watch how Adam Savage, Jaime Hyneman, and The Mythbusters team put it to the test to find out the answer. Updated video. If you can't see ...

SpaceX’s Grasshopper hover and landing (October 2013)

We watched the June 2013 Grasshopper test when it reached 325m, but this most recent SpaceX vertical takeoff vertical landing (VTVL) vehicle test more than doubled that height, and the close-up ...

SpaceX’s Grasshopper hover and landing (June 2013)

Full screen, volume up! This is SpaceX’s Grasshopper on June 14, 2013, using its state of navigation capabilities to execute a precision hover and landing sequence:  Grasshopper is a...

SpaceX’s Grasshopper: “What it feels like to ride a rocket.”

From @elonmusk, “What it feels like to ride a rocket.” SpaceX’s Grasshopper takes a 12-story leap towards full and rapid rocket reusability in a test flight conducted December 17, 2012 at SpaceX&#...