Notes on covering QM

I learnt last year that quantum systems are essentially linear because the mathematics that physicists have found can describe quantum-mechanical phenomena contain only linear terms. Effects add to each other like 1 + 1 = 2; nothing gets out of control in exponential fashion, at least not usually. I learnt this by mistake in an …

Why scientists should read more

The amount of communicative effort to describe the fact of a ball being thrown is vanishingly low. It’s as simple as saying, “X threw the ball.” It takes a bit more effort to describe how an internal combustion engine works – especially if you’re writing for readers who have no idea how thermodynamics works. However, …

A universe out of sight

We’ve been able to find that the universe is expanding faster than we thought. The LHC has produced the most data on one day. Good news, right?

Thinking quantum

In quantum physics, every metric is conceived as a vector. But that’s where its relation with classical physics ends, makes teaching a pain. Teaching classical mechanics is easy because we engage with it every day in many ways. Enough successful visualization tools exist to do that. Just wondering why quantum mechanics has to be so …