The original problem Three doors, a prize behind only one door (say, a new car). Other two doors are each hiding a goat. Contestant has to pick a door – and hope that she wins the car. At just this stage, the chance of...

# Category - Physics, Math

Interesting Physics and Math Stuff

Counting Elements versus Counting Intervals The interval [0,1) for example is uncountable, but we are not counting ELEMENTS of an interval, we are counting INTERVALS. [0,1] is one interval, [0,1/3] is another and so...

How often have you stared at a math (or physics) problem, unsure of where to begin? Most math books are unusually pedantic and dull – all in an attempt to be more ‘rigorous’. Screw rigor, I say. Students are...

The short answer is ‘No’. If you think about what the zero-point energy represents, it is the lowest POSSIBLE energy state of a system. For us to extract any energy out of this system would leave it in an even lower energy...

Galilean Transformation – v’ = v +- V – cannot be applied to light If (x1 , t1) and (x2,t2) are two events in K, and (x1’,t1’) and (x2’,t2’) are their co-ordinates in K’, then (x2 –x1) / (t2 –...

A Logical Paradox – The British Air Force Bombing Paradox The British Airforce announces that it will bomb the city sometime during this week; but at an unpredictable date. Why is this paradoxical. Suppose, they announce this...

Several classical, common sense notions like the momentum of a particle hold no meaning in the quantum realm. Momentum and velocities are no longer ‘material’ aspects of a microscopic particle; they are rather...

The phenomenon we are trying to explain is the interference pattern seen when you send a stream of particles through a double slit (barrier with 2 slits) apparatus. As long as you do not make any measurement, you ALWAYS get an...

Just like the Standard Model for elementary particles, the model for cosmology also has 15 adjustable constants.

This post is under construction For example, if the (one dimensional) position of a particle consisted of a normal statistical distribution with a mean position of 0m and a variance of 1 at time t = 0, it’s wave function...