Physicists propose tabletop experiment to test gravity’s quantumness

General relativity and quantum mechanics are two highly successful theories. The former explains gravity and the latter teams up with special relativity to describe the other three forces of nature: electromagnetic, strong nuclear, and weak nuclear forces. However, scientists don’t know how gravity fits into quantum mechanics. In fact, they have been proposing experiments that … Read more

First detailed map of moon’s south pole area made from Chandrayaan data

Astronomers are excited to be poring over the first ever detailed geological map of the moon’s south polar region, where India’s Chandrayaan-3 lunar module, Vikram, touched down on August 23, 2023. The map is expected to throw new light on the moon’s origin and evolution. Researchers from the Physical Research Laboratory (PRL) in Ahmedabad, Panjab … Read more

How does space travel affect astronaut health?

The human body was not built for spaceflight, with its microgravity conditions, exposure to high-energy radiation and other issues. As a result, trekking beyond the the earth’s confines causes many physiological changes that affect an astronaut’s health. Here is an explanation of some of the effects on human health caused by space travel. Why is … Read more

Majorana 1: A quantum phenomenon

A view of Microsoft’s Majorana 1 chip. | Photo Credit: Microsoft In a head-turning announcement earlier this week, Microsoft unveiled a new quantum chip called Majorana 1. According to its press release, it consists of four qubits made of a “new state of matter”. Qubit is short for ‘quantum bit’, the fundamental unit of operations … Read more

Condensed matter: a big piece of physics

The three most common phases of matter or visible in this image: the solid earth, the liquid water, and a vaporous mist encircling the waterfall. | Photo Credit: Joshua Sortin Condensed matter physics is one of the largest, most active branches of contemporary physics research. Simply speaking, scientists in this field study the properties and … Read more

How glacier ice algae accelerate Greenland ice sheet melting

A new study reveals that dark-pigmented microalgae, which contribute to the melting of the Greenland ice sheet, are highly efficient at nutrient uptake and growth, allowing them to rapidly colonise expanding areas of exposed ice. The findings suggest that these algae can persist and spread without the need for additional nutrient inputs, intensifying ice sheet … Read more

Why is Central TB Division pushing an untested AI tool for screening?

Even as time is running out to meet Prime Minister Narendra Modi’s goal of “eliminating” TB by 2025, the Health Ministry appears to be moving at glacial speed and is largely disinterested. A report submitted by the Health Technology Assessment of India (HTAIn) committee in February 2024 on two indigenously developed solutions to screen people … Read more

What makes us remember our dreams?

Some people wake up vividly recalling their dreams from the night, and can tell precise stories experienced during the night, while others struggle to remember even a single detail. A new study has explored the factors that influence ‘dream recall’ — the ability to remember dreams upon awakening — and uncovers which individual traits and sleep … Read more