On the up and up: levitating particles & a frog, with sound & magnets

Two visual demonstrations of levitation, each using known physics properties: 1. Using sound waves to levitate particles [REFERENCE: “Three-dimensional Mid-air Acoustic Manipulation by Ultrasonic Phased Arrays,” Yoichi Ochiai, Takayuki Hoshi, Jun Rekimoto, (2013) arXiv:1312.4006.. Thanks to @BetsytheDevine for bringing this to our attention.]: 2. The Ig Nobel Prize-winning levitation of a frog, using magnets [REFERENCE: “Of […]

A Brief History of Fridge Magnets [video]

The Tripe Marketing Board presents A Brief History of Fridge Magnets: BONUS: The history continues past that point, of course. Part of it is documented in this study: “Design, manufacture, and test of an adiabatic demagnetization Refrigerator Magnet for use in space,” Steve Milward, Stephen Harrison, Robin Stafford Allen, Ian D. Hepburn, Christine Brockley-Blatt [pictured […]

Interview with a frog-levitating graphene tinkerer

Sean O’Neill, in New Scientist, interviews Andre Geim, who has shared (with different collaborators) both an Ig Nobel Prize in physics (for his work on teh substance graphene) and a Nobel Prize in physics. Here’s the final portion of that interview: From tinkering on the fringes to Nobel glory … You have worked in many […]

A knighthood for Geim—he of frogs, magnets & pencils

The man [pictured here] who was awarded an Ig Nobel Prize for using magnets to levitate a frog (a feat he accomplished together with a man who already had a knighthood) and then ten years later was awarded a Nobel Prize for having used scotch tape to tease graphene layers from a pencil, has now been […]