Sci – Tech
Are humans going to evolve again?
Darren Curnoe/ The Conversation Humans are evolving right now and will continue to do so even if we don’t notice it. This might sound a bit far-fetched, so let me explain what I mean. The big changes Biologists who study evolution do so by examining evidence on two sc ...বিস্তারিত
How to live better and stop destroying the planet
Ana Paula Aguiar, Pernilla Malmer & Odirilwe Selomane/ Project Syndicate A recent United Nations-backed report highlighted the scale of destruction humans are inflicting on the natural world. To reverse these trends, humanity must transform its economic models and foo ...বিস্তারিত
Why do leaves fall off trees?
Matilda Brown, PhD, University of Tasmania/ The Conversation The short answer is that leaves fall off trees when they aren’t doing their job any more. A leaf’s job is to turn sunlight into food for the tree. To do this, the leaf needs water. This water comes from the ...বিস্তারিত
Why does ice make a cracking sound when water is poured on it?
Daniel Southam/ The Conversation Water is an amazing thing, and without it life as we know it would be very different. Water is one of very few chemicals that is found as a liquid (water), solid (ice) and gas (steam) at any time on Earth. And it’s for this reason that i ...বিস্তারিত
The retro DIY wedding that blew up Instagram feeds
Shreeja Ravindranathan / Friday Magazine The only heels at Tamila and Ahmed’s sneakers-only wedding was how they fell head over heels in love Love is patient, love is kind. Love should also be comfortable and laidback, proved Tamila Kochkarova and Ahmed A at what is po ...বিস্তারিত
Why do we not use the magnetic energy the Earth provides to create electricity?
Stephen G Bosi, Senior Lecturer in Physics, University of New England/ The Conversation Electricity (let’s say “electrical current”) is when electrically-charged particles flow, like water in a pipe. There are two kinds of electrical charge - positive and negative. ...বিস্তারিত
Social media an indispensable tool in India’s elections. That’s where the trouble starts
Shashi Tharoor/ Channel News Asia Political parties have been turning to social media extensively this year, says Shashi Tharoor. With India’s general election close to its conclusion, a crucial question needs to be revisited: What role have social media played in them ...বিস্তারিত
Fighting hate on the internet
Gulf News Christchurch Call to Action must succeed in stamping out those who pontificate evil A full two months have passed since the murderous events unfolded in Christchurch that claimed the lives of 52 and injured another 50 at two mosques. And what makes those attack ...বিস্তারিত
How do you retaliate against a WhatsApp attack?
James O’Malley/ The Guardian Cyberwarfare is on the march, but there is nothing in the Geneva conventions to cover it We don’t yet know for sure who used Israeli company NSO’s software to hack WhatsApp users – the messaging service’s parent company Facebook has ...বিস্তারিত
There is nothing like complete online privacy
Zeynep Tufekci/ Gulf News People concerned about privacy often try to be “careful” online. They stay off social media, or if they’re on it, they post cautiously. They don’t share information about their religious beliefs, personal life, health status or political ...বিস্তারিত