You are sitting at the side of a railway track, armed with a laser pointer velocity measuring gun. To accurately measure the velocity of any moving object, you just point the laser at it and...
At a lovely romantic birthday meal in a fantastic Italian restaurant in Putney, I had a fabulous crab spaghetti dish. possibly one of the nicest pasta dishes I have ever had. My...
If you tie a string around the whole world at the equator, the length of the string is obvoiusly the distance around the world at the equator. Now, imagine that the string is actually elastic, and you...
How on earth does a childs toy gyroscope balance at nearly 90 degrees to the "eiffel tower" stand that comes with it? Why does gravity not work properly and make it fall? I know that...