A journey into the maths of card shuffling gives us a great insight into how mathematicians work.

Do you like curves? The you'll love tricurves and their ghostly phantoms!

Get a fish to teach you chaos theory!

Why does the number e appear in models of exponential growth?

Yes the approved vaccines are safe. If you balance the risks, then taking the vaccine is much safer than taking your chances with COVID-19.

Because the vaccine may not stop transmission of the virus.

The efficacy of vaccines is estimated from trials, using statistical techniques.

Like any medical drug, vaccines are tested in large-scale randomised controlled trials.