It is known that the Indian population, particularly vegetarians, is deficient in vitamin B12. The vitamin essential for the formation of blood cells and the functioning of nerve cells is mainly found in animal-derived food. B12 deficiency during pregnancy has been associated with neural tube defects and poor foetal growth, affecting long-term health. In 1993,...
Category: Science & Tech
Researchers use sound waves to detect elusive helium gas leaks
Helium is famous for making balloons float, voices squeak, and as a critical resource for MRI machines and aerospace engineering. Helium is expensive and scarce, finding leaks quickly is essential, but that’s easier said than done because helium is also chemically inert and sensors, which usually rely on chemical reactors, have a tough time detecting...
Why are some stars blue, some white, some red?
– B.R. Sravan The main reason is surface temperature. Stars behave roughly as objects that absorb all incoming radiation and radiate energy back based solely on their temperature.The colour we see depends on the wavelength of light where the star emits the most energy. According to Wien’s law, hotter stars emit more energy at bluer...
Science Quiz: On medical disasters
Science Quiz: On medical disasters 1 / 6 | The drug shown here is created by slightly altering the chemical structure of Y. Name Y, whose use led to a tragedy in the 1950s and 1960s.
To make sense of cosmic rays, CERN team tracks a fragile nucleus
The hydrogen atom is the lightest in the universe and it consists of the simplest nucleus: a single proton. But while helium is the second-lightest element, its nucleus isn’t the second simplest. That distinction belongs to the deuteron, the nucleus of the deuterium atom, which contains one proton and one neutron. (Deuterium is an isotope...
Doomsday Clock is 85 seconds to midnight
The Bulletin of the Atomic Scientists has moved the hands of the Doomsday Clock to 85 seconds to midnight, the closest the world has ever been to global catastrophe in its estimation. The announcement, on January 27 in Washington DC, reflects a darkening security landscape marked by eroding nuclear norms, escalating conflicts in Europe and...
The impact of India-EU FTA on AI and semiconductor tech
In a milestone, India and the European Union (EU) have hailed the conclusion of the India-EU Free Trade Agreement (FTA) while launching a ‘Comprehensive Strategic Agenda’ for 2030. Among other measures, the pact moves beyond supply chains to operationalise joint R&D in advanced semiconductor “heterogeneous integration” and chip design. It also formally links the European...
How did kangaroos evolve to hop?
For a long time, biomechanics experts believed that giant, extinct kangaroos were simply too heavy to hop. While the largest modern kangaroos weigh around 90 kg, their prehistoric relatives were much larger and weighed more than 250 kg. And scientists previously calculated that if you took the anatomy of a modern kangaroo and scaled it...
Life pays universe a ‘heat tax’ to run precise chemical reactions
Living things dump a lot of heat into their surroundings. The universe is strict about conserving energy. If there’s a soup of cells and you make them settle down and work together in orderly fashion, you reduce the system’s entropy. In return you need to pay a ‘tax’ to the universe, to account for the...
Reviewer burnout drives AI use yet human oversight remains crucial
Shruti Kumar (name changed) is a professor at a medical research institute, working on diagnosing a neglected tropical disease that infects almost a million new people every year. Prof. Kumar said that with the increasing number of requests by scientific publishers to peer review research manuscripts in recent years, the process takes so much of...
