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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...

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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...

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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...

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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...

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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...

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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...

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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...

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What is radioactive decay?

In a random moment, all energy is lost. The unstable subject cannot help but decay, slowly but surely, letting go of particles to become stable. It loses itself to become balanced again. This is a radioactive atom’s decay. Warning: Danger ahead Look at the periodic table down below. Other than the blue, all elements depict...

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