Sound
Every day we take sound for granted, whether we're listening to music, hearing birdsong or covering our ears to protect them from the noise of a pneumatic drill, but how much do we really know the physics of sound? Sound energy is formed by vibrations that ripple the area around it causing longitudinal waves that form areas of high and low pressure. These travel to your ears and vibrate the eardrum, which your brain transforms in to the beautiful melodies or obnoxious noise we recognise as sound.

What is the doppler effect?

This fundamental concept in physics is why the Moon sometimes looks red, and can help doctors analyse blood flow in tissues.
more

Who really invented the telephone?

Scottish-born inventor Alexander Graham-Bell usually gets all the credit, but there are a few more names that might ring a bell.
more

Sonos Beam Gen 2: A soundbar packing a serious punch

A small but oh so incredibly mighty soundbar from an industry leader.
more

Best soundbars to buy in 2024 reviewed

The ideal upgrade to your home cinema system
more

The 10 best portable speakers for an outdoor party

Take your tunes on the go and bring the party outdoors with our pick of the best portable speakers.
more

Sony WH-1000XM5 review: Near-flawless headphones and a price to match

A redesign, new features and a bigger price tag. Do the WH-1000XM5 make enough changes to be worth the investment?
more

Best DAB radios for digital radio listening

Upgrade your radio listening with the best and newest DAB radios.
more

The best turntables and record players in 2024

Get the most out of your vinyl record collection with our carefully selected picks of the best turntables.
more

Major melodies might only be considered happier than minor in Western society

Major chords sound happy, minor ones sound sad, unless you're from Papua New Guinea.
more