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At the bottom of the oceans and seas lie more than 8,500 shipwrecks from two world wars. These wrecks have been estimated to contain as much as 6 billion gallons of oil, as well as munitions, toxic heavy metals and even chemical weapons. For decades, these wrecks have largely lain out of sight and out of mind. But all…
Read More “Polluting shipwrecks are a ticking time-bomb at the bottom of our oceans” »
This artist’s illustration shows the wayward interstellar visitor ‘Oumuamua (pronounced oh-MOO-ah-MOO-ah) racing toward the outskirts of our solar system. The object, heated by the Sun (lower right), is venting gaseous material from its surface, as a comet would. | Photo Credit: Reuters In 2017, NASA discovered and later confirmed the first interstellar object to enter our Solar…
Read More “What is a dark comet? A quick guide to the ‘new’ kids in the Solar System” »
Many cultures associate twins with health and vitality, while others see them as a philosophical reminder of the duality of life and death, good and evil. | Photo Credit: Tesla Monson/The Conversation Twins have been rare in human history and for that reason can seem special. Many cultures associate twins with health and vitality, while others see them…
Read More “Primates often gave birth to twins 60M years ago: new research” »
Questions: 1. Fifty-five years ago on this day, the US Air Force concluded its 17-year investigation into unidentified flying objects (UFOs) and the threat they posed to national security. What was the codename of this exercise? 2. On December 13, Larry Hogan, the governor of Maryland state in the USA, posted a video on a…
Read More “The Science Quiz | Unidentified flying objects” »
If the aviation sector was a country, it would be among the world’s top 10 greenhouse-gas emitting nations. Air travel is one of the most polluting modes of travel for its relatively higher carbon dioxide and nitrogen oxide emissions and the effects of vapour trails and gases it deposits in the atmosphere. But even within…
Read More “Private aviation is releasing more than its ‘fair share’ of emissions” »
The kit consists of a trouser, pullover and a face-cover made of ‘oxime fabric’ that can chemically breakdown any of the common pesticides that get sprayed onto cloth or body during spraying operations. | Photo Credit: Special Arrangement Akin to the protective PPE kits that health workers don, scientists affiliated to the Department of Biotechnology…
Read More “Scientists develop ‘kisan kavach’ to shield farmers from pesticide sprays” »
Representative image of a digital calculator. | Photo Credit: Doston Nabotov Q: Why are the rows on a calculator or number keypad arranged with the lowest numbers at the bottom when we normally read from top to bottom? And why are phone keypads arranged with the lowest numbers at the top? A: Mechanical adding machines,…
Read More “Why are numbers arranged differently on keypads and calculators?” »
Image used for representational purposes. File | Photo Credit: Reuters Space startups in Japan and India said on Tuesday (December 17, 2024) that they had agreed to jointly study using laser-equipped satellites to remove debris from orbit, an experimental approach to the increasingly imminent problem of orbital congestion. Tokyo-based Orbital Lasers and Indian robotics company…
Read More “Japan, India startups to study laser-equipped satellite to tackle space debris” »
3D glasses are special eyewear crafted to transform flat movie screens into immersive three-dimensional experiences. They create the illusion of depth, making scenes feel like they’re leaping off the screen and pulling you into the action. How they work: Simple science behind Our eyes work together to perceive depth, a process called binocular vision that…
In winter, the temperature in Dras in Ladakh drops to -20º C, making it the coldest place in India. On the other side of the world, Fairbanks, the capital city of Alaska, holds a similar record in the U.S., its temperature hovering around -22.4º C in winter. But the two cities have drastically different air…
Read More “New chemical pathway found to worsen air quality in harsh winters” »