Ecology

Why professional swimmers wear two caps

Why professional swimmers wear two caps

Credit: Isiwal/Wikimedia Commons/CC BY–SA 4.0, CC BY–SA 4.0 via Wikimedia Commons During swimming competitions you often see athletes take off their caps and discover a second one underneath. In a sport where victory is played out on hundredths of a second, every tiny advantage counts. There double headphones serves to guarantee maximum hydrodynamics possible, eliminating folds that would create resistance, ...

NFC and encryption: the real reason why contactless is more secure

NFC and encryption: the real reason why contactless is more secure

Have you ever wondered what happens when we bring the card closer to the POS? Almost certainly yes, and you may also have wondered if it is really safe and why sometimes we are asked for the PIN and other times not. In this video we explain how contactless payments workor those which – as the word itself tells us ...

High flight prices at Christmas 2025, +900% compared to normal fares: the most affected routes

High flight prices at Christmas 2025, +900% compared to normal fares: the most affected routes

Buy i flights today for the Christmas period costs consumers up to 900% more than usual. This is what Codacons communicated in recent days in a press release. The association also announces that it has submitted a report to the Antitrust, the Ministry of Transport and Enac regarding the excessive and worrying increase in prices, which sees figures approaching 200 ...

An accelerated melting of ice occurred in Antarctica 9,000 years ago: the importance of the discovery

An accelerated melting of ice occurred in Antarctica 9,000 years ago: the importance of the discovery

The sampling of marine sediments during the Japanese expeditions. Credit: National Institute of Advanced Industrial Science and Technology (AIST) About 9,000 years agowhen global temperatures increased with the end of the Last Ice Age, the ice ofEast Antarctica they suffered one particularly rapid fusion: the cause of this amplification was the effect of melt water on ocean circulation. The researchers ...

Signs of cryovolcanism discovered on comet 3I/ATLAS: chemistry recalls bodies beyond Neptune

Signs of cryovolcanism discovered on comet 3I/ATLAS: chemistry recalls bodies beyond Neptune

Image generated with AI. Not a day goes by without the interstellar comet 3I/ATLAS providing a new surprise. As the closest to Earth on December 19thEarth’s largest telescopes are peering tirelessly at this rare visitor, trying to gather as much data as possible before it vanishes forever into cold interstellar space. The latest discoveries in chronological order suggest that 3I/ATLAS ...

Why traveling by train costs more than flying in Europe

Why traveling by train costs more than flying in Europe

Every year, when the time comes to organize the trip home for the holidays, many of us find ourselves in front of the PC screen consulting ticket prices and choosing whether to take the train or plane. Those who have already done so will have noticed that, this year too, generally, Train tickets cost much more than plane ticketsand Italy ...