Menu Close

Science + Tech – Articles, Analysis, Comment

Displaying 2426 - 2450 of 6517 articles

Technologies such as social media, SMS and tracking apps can be used by abusers to control and harass their partners. Shutterstock

Migrant women are particularly vulnerable to technology-facilitated domestic abuse

With few contacts and no independent income, migrant women experiencing domestic violence can become further isolated from support by abusive partners controlling their access to technology.
Richard ‘Bert’ Roberts, Vladimir Uliyanov and Maxim Kozlikin (clockwise from top) examining sediments in the East Chamber of Denisova Cave. Institute of Archaeology and Ethnography of the Siberian Branch of the Russian Academy of Sciences, Author provided

Fresh clues to the life and times of the Denisovans, a little-known ancient group of humans

New studies reveal when the Denisovans and their Neanderthal cousins occupied a cave in southern Siberia. It’s the only site known to have been inhabited by them and by modern humans.
We could see even sharper divisions in society in the future if support for racism spreads online. Markus Spiske/Unsplash

Racism in a networked world: how groups and individuals spread racist hate online

Both organised groups and unaffiliated individuals spread racist hate online, but they use different channels, have different goals and use different strategies to achieve them.
The Bell Nexus is a full-scale vertical-takeoff-and-landing air taxi vehicle, powered by a hybrid-electric propulsion system. Bell/Cover Images

Flying taxis within five years? Not likely

CASA says we could have flying taxis operating in Australia within five years. But there are a few hurdles to clear before we see ride sharing happening in the air rather than on the ground.
Chemicals poured down the sink or pumped into the atmosphere can eventually end up in the groundwater, which means less available fresh water for us to use. Flickr/Kamil Porembiński

Curious Kids: how is water made?

While making small volumes of pure water in a lab is possible, it’s not practical. The reaction is expensive, releases lots of energy, and can cause really massive explosions.
Homo erectus had many features in common with Homo sapiens – but we still don’t have a genetic profile for this species. from www.shutterstock.com

A snapshot of our mysterious ancestor Homo erectus

No area of archaeology has seen such vibrant change in recent times than how we understand our family tree. Could 2019 be the year we learn more about our mysterious ancestor Homo erectus?
An artist’s impression of Kepler-22b, a planet known to comfortably circle in the habitable zone of a sun-like star. It is the first planet that NASA’s Kepler mission has confirmed to orbit in a star’s habitable zone - the region around a star where liquid water, a requirement for life on Earth, could persist. NASA/Ames/JPL-Caltech

Curious Kids: why has nobody found any life outside of Earth?

Life could exist in another solar system in a different part our galaxy. Or in another galaxy far away. We don’t have the perfect technology yet to study such far away places but we’re still trying.
To serve at your best, you have to throw your racket in a way that projects the ball at a high speed – but add some spin. It’s simple physics. from www.shutterstock.com

Fast serves don’t make sense – unless you factor in physics

The speeds at which top players deliver tennis serves are theoretically impossible. So how do they do it? The answer involves Isaac Newton, ping pong and a little bit of ‘cheating’.