Twirl an upside-down soda glass and toss it down a tabletop (somewhat like the hero in the video game Tapper), and the glass will pull off in a direction opposite of the spin. Spin a granite curling stone and throw it down the ice, however, and it will travel in the same direction as the spin. Video blog SmarterEveryDay looks at physics theories that try to figure out why this counterintuitive result happens.
This is Science Magazine; this is one of their featured front-page stories (date stamped 17 September 2014 8:00 am): "The top 50 science stars of Twitter", by Jia You. The list has 46 men and 4 women. [more inside]
A video showing a chain of beads behaving in a very peculiar way appeared on Youtube some time ago. Many people attempted to provide explanations, but most of them weren't quite satisfactory. [more inside]
Last fall, the Canadian Space Agency asked students to design a simple science experiment that could be performed in space, using items already available aboard the International Space Station. Today, Commander Chris Hadfield conducted the winner for its designers: two tenth grade students, Kendra Lemke and Meredith Faulkner, in a live feed to their school in Fall River, Nova Scotia. And now, we finally have an answer to the age-old question, What Happens When You Wring Out A Washcloth In Space? [more inside]
Henry Reich of Minute Physics shares his favorite science blogs, video channels, and other resources on the web. (Minute Physics previously) [more inside]
Dear Mr. President: “You're the President of the United States: a country with 5000 nuclear weapons, birthplace of the world's computing and telecommunications industry, home of the first atomic clock and creator of the global positioning system. But chances are, if you just took regular American high school physics, you don't know one iota about the science behind these things (no offense). That's because high school physics students across most of America are not required to learn about pretty much any physical phenomena discovered or explained more recently than 1865.” From Henry Reich of Minute Physics. (Can't watch video? Click the "interactive transcript" button under the video to read it instead.) Minute Physics previously, previouslier. [more inside]
Trees are Freaking Awesome! (SLYT)
On November 22, 2011, TEDxBrussels held an all day event whose theme was: "A Day in the Deep Future." Speakers were asked to try and contemplate what life will be like for mankind in 50 years. Overview. [more inside]
The science education video series Sixty Symbols (previously) explores the Cadbury Creme Egg. [more inside]
What Periodic Videos did for chemistry, Sixty Symbols is doing for physics and engineering. Some behind the scenes action and general scienciness. [more inside]
Episode 4 - Problems "Okay, sometimes I almost want to give up everything." A fascinating insight into the Large Hadron Collider (loving the soundtracks too). YTL
Liquid Nitrogen bomb! A ship floating on invisible hexaflourid gas! Smoking can kill you and weld metal! Nuclear Chain reaction... with balls! Detonating gas in a can!! Water flowing uphill! 100,000,000 volts and a Faraday cage! And more from Physikshow at University of Bonn.