Ask the Physicists: Are the dimensions of space constant? Is today’s metre the same as tomorrow’s meter?

We got the following question on our Ask The Physicists Facebook page that really got some heads scratching at our end: Are the dimensions of space constant? Is todays metre the same as tomorrows meter? The thought was that, if everything were expanding or contracting uniformly on an absolute scale, an observer embedded within the expanding or contracting matrix would ...

Jason MajorAsk The Physicists, Outreach

Under pressure: Heat, airplanes and Bernouli

What does heat and a dude called Bernouli have to do with deciding when it is too dangerous to fly a plane? Be prepared to do some quiz questions. The experiments in this activity relate to what enables a plane to get off the ground and what can make it come crashing down again. And about 150 years before the …

adminForces and motion, Home Science, School teacher resources