The Heisenberg Uncertainty Principle
One of the most bewildering developments of modern physics is the Heisenberg uncertainty principle. CEPAL on today's moment of science will learn what this is and try to clear up some of the uncertainty. Heisenberg principle deals with tiny particles particles of matter that make up atoms. It says that if you measure particles exact location there's no way you can determine its speed likewise the more you know about a particle speed the more uncertain its location becomes. You can either no the particle speed or location. Exactly not both. This seems to run against common sense. It's like saying that because you know your car is going exactly fifty miles an hour. It's impossible to say which city you're you're driving in or once you learn you're at a certain corner in Indianapolis you can no longer say whether you're parked or bracing the indy five hundred. Here's one one way to understand. It usually find out where your car is by looking for it. Light from the Sun bounces off the car and into your eyes and you learned when it's over there. The same is true of atomic particles. The way to see them is to bounce light off them. This causes a problem though. Late late itself is made of tiny particles called photons bouncing one of these off another particle might tell you where that particle is but it will also give considerable shove changing its speed in the process. It's a little bit like trying to find a moving car by rolling huge boulders across the road a crash will tell you exactly where the car is or rather was but it will certainly change the car's speed in the process. This moment of science comes from Indiana University. I MEA CASSANDRA.