The Science Quiz | Surviving radiation
The Hindu
The Science Quiz | Surviving radiation
Questions:
1. There are four ways to measure radiation dose. Of these, gray and X measure the absorbed dose whereas sievert and Y measure it in terms of its biological effect. Name X and Y, which are the corresponding non-SI units in these categories.
2. About 0.4 micro-sievert is the amount of radiation your body is exposed to every hour. What is the collective name for the source of this radiation?
3. Name the city in southeast China that is reputed for an area with a particularly high level of radiation — about 6.4 milli-sievert per year — as a result of rocks in the area being particularly rich in uranium and thorium.
4. For humans to be killed by radiation poisoning, the value of the ____ is 4,800 milli-sievert. Fill in the blank with a unit that denotes the amount of a substance required to kill half the members of a population.
5. Name the bacteria famed for being the most radiation-tolerant organism known in existence. It can withstand up to 30,000 gray of gamma rays — 6,000-times higher than the dose that could kill a human.
Visual:
Learn how a lie detector, or polygraph, works by measuring physiological functions during police interrogations.
The collection was inspired by the uniqueness of the fibre and a deep curiosity to understand Pashmina’s origins and the life of nomadic communities. It was created to honour their way of life and bring their story to the forefront through design.
The Science Quiz | The Indus civilisation
About 54 women entrepreneurs from the UK drive an auto rickshaw from Chennai to Goa for charity, empowering women and children as part of Sisterhood Group UK titled “Let’s Goa 2025 Rickshaw Rally”
Manu Parekh's vibrant memories of Kolkata and artistic journey are showcased in Flower Sutra exhibition at Nature Morte, New Delhi.
Private lunar lander Athena fails mission after sideways landing in moon crater, ending $62 million NASA experiment.
Thomas Jefferson and Abraham Lincoln are two of the greatest presidents that the U.S. has seen. You probably know that already. But did you know that Jefferson made what is considered the first contribution to American vertebrate paleontology? Or that Lincoln is the only U.S. president to receive a patent? What’s more, both their contributions have March 10 in common… 52 years apart. A.S.Ganesh hands you the details…
Preprint papers are publicly available scientific papers before peer review, popular among open-access advocates and scrutinizing peer review practices.
Discover the fascinating world of river dolphins in India, facing threats but captivating hearts with their unique features.
L&T, India's largest private defense manufacturer, expands into aerospace industry to capitalize on growing global launch vehicle market.
The BMW C 400 GT: A stylish scooter with premium details, advanced safety features, modern technology, and improved ergonomics has arrived in India
With the rise of the women’s liberation movement in the West, and some parts of China, activists fought for separate rooms, separate bathrooms, separate swimming pools, separate vehicles, separate roads, separate cities, even separate countries
Himmat Shah refused to be part of the mainstream, instead focusing on metamorphosing his medium and materials in the most versatile ways — with a distinctly Indian aesthetic