prostheticknowledge:

Three-Dimensional Mid-Air Acoustic Manipulation

Tech demo of setup able to levitate, control and maneuver small light objects in a 3D space using ultrasound waves, defying gravity.The essence of levitation technology is the countervailing of gravity. It is known that an ultrasound standing wave is capable of suspending small particles at its sound pressure nodes and, so far, this method has been used to levitate lightweight particles, small creatures, and water droplets. More Here

3 months ago 3,756 notes

The Hairy Arm Explains on DIY TV

A new video series, in which super weird and interesting concepts are explored from the perspective of a large hairy arm that draws really fast.

Watch the first 4 Episodes:

The Largest Living Thing on Earth

How to Resurrect a Wooly Mammoth

The World’s First Computer

Why You’ll Love Lab-Grown Meat

PS: The hairy arm belongs to writer/director Daren Rabinovitch

3 months ago 1,063 notes

The Incredible Physics of Ants

ScienceTake: They can flow like a liquid and bounce back like a solid. Masses of fire ants show a duality that intrigues physicists.

Read the story here! 

3 months ago 90 notes