It's an age-old problem – trying to fix a wobbly table in the pub. The most logical response, people believe, is to stick a couple of coasters under one leg. But there's a much easier way to solve the ...

One of the most irritating inconveniences is a table that wobbles back and forth when you lean on it. Assuming the cause is uneven ground, math proves that if you rotate the table, the legs will find ...