Forcing people to change their passwords is officially a bad idea
[ad_1] Many people struggle to think of new passwords and remember them rawf8/Shutterstock Many organisations make staff regularly change their computer passwords for security reasons.
Map of the immune system changing with age may help optimise vaccines
[ad_1] The map of the immune system, with each dot representing an immune cell and dots of the same colour belonging to the same cell
Bacteria can work as a team to spot prime numbers and vowels
[ad_1] Scientists have genetically engineered bacteria derived from Escherichia coli into simple computers Siarhei Yurchanka / Alamy Genetically engineered bacteria can work together to spot
2073 review: Samantha Morton stars in dystopian docudrama 2073
[ad_1] Ghost (Samantha Morton) narrates the dystopian history of New San Francisco Neon 2073Asif KapadiaTo be screened during the BFI London Film Festival, 16 October;
Stellar views of some of the most spectacular sights in the universe
[ad_1] Galaxy Messier 82 (M82), also known as the cigar galaxy NASA/ESA/Hubble Heritage Team (STScIAURA); J. Gallagher (University of Wisconsin), M. Mountain (STScI), P. Puxley
Jet contrails may cool the planet by day and warm it by night
[ad_1] Aircraft contrails seem to have a net cooling effect in the daytime Richard Newstead/Getty Images Taking a day flight could be a swift way
What voice assistants like Alexa know about you – and how they use it
[ad_1] What does your voice assistant know about you? FG Trade/Getty Images By simulating fake people while interacting with popular smart voice assistants, such as
How genetically modified crops could feed us and help safeguard nature
[ad_1] Genetically modified maize Nick Gregory/Alamy I have never been a supporter of Brexit, except for one thing: it has allowed the UK to break
Search for alien transmissions in promising TRAPPIST-1 star system draws a blank
[ad_1] Artist’s impression of the seven planets in the TRAPPIST-1 system NASA A search for aliens communicating between planets in one of the most promising
Why does hair pulling hurt? Blame your myelinated nociceptors
[ad_1] Hairy situation Yes, when someone pulls your hair – if you have enough hair that someone can pull it – it hurts. But the