We may receive a commission on purchases made from links. There are tools in every tool chest that get used so often they can ...

Last Word is New Scientist’s long-running series in which readers give scientific answers to each other’s questions, ranging from the minutiae of everyday life to absurd astronomical hypotheticals. To ...

Whether you are tackling a full-on carpentry project or simply hanging something on your wall, a bubble or spirit level is an essential tool for getting things done right. All of us have had times ...

I’ll level with you, until I was commissioned to cover these now central components of the construction industry, I’d never actually used a laser level before. Spirit levels, countless times in the ...

There is a well-known story of a gentleman who held that Earth was flat. He took a spirit level on a long-haul flight and afterwards announced that, other than during take-off and landing, the ...