Recent content by prof tipesh

Sorry, another correction. The Field is our construct. We can indeed use LHR (left hand rule) for the field as well. The force on a moving charge does seem to be the real thing. In GR gravitational force is eliminated by local curvature, but that local curvature is always positive, so...

Gee, life was more challenging before wiki! I was born in the Southern Hemisphere, and when I was 7, I decided to make a sundial, and I followed all the instructions right, and yet it went the wrong way! After about 4 hours of puzzling about what I did wrong, I understood! Turn a clock...

Why is clockwise clockwise, and not the other way round? Prof Tipesh cannot see the problem - either clockwise is clockwise or it isn't, but he is not wise, he is otherwise. Prof Tipesh says he knows up from down by dropping stones, forward from backward by walking, left from right from...

Ceptimus is correct - to get Force we would have to integrate Pressure (points radially) dot Surface-Normal over the surface. As a true Theoretical Physicist, I am lazy, so let's make the work a little easier. First, change out the tires to square tires. Second ... OK joke 1. Let's assume...

As the problem is originally stated, read the volume meter in cubic meters. I have no idea how this meter works but I don't care. Lower the boat. The water will rise as the boat is lowered, volume staying the same. Drain the water until the height is back to what it was. Now read off the...

Where did you get that "clock"? The clock is a semi-metric clock, it has 100 (or 50) minutes to the hour, but still 12 hours to the day. A fully metric clock would have 10 hours per day. Very strange. It must not be used to count time, yet has two hands. OK, I'll pose one. Why is...