How big is the solar mass loss due to radiation? Detailed answer

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How big is the solar mass loss due to radiation? Detailed answer

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How big is the solar mass loss due to radiation?

Every second, the Sun loses about 4,3 million tons of its substance to radiation. This amounts to 140 trillion tons per year (a trillion is a number represented by a unit followed by 12 zeros) - such is, for example, the mass of an asteroid with a diameter of 50 kilometers.

But the Sun is very large, and at this rate of radiation, it would take 150 billion years for it to lose just one percent of its mass.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Is a chimpanzee a monkey?

All monkeys can be divided into 4 main groups: lemurs, Old World monkeys (baboons, etc.), New World monkeys (spider monkey, howler monkeys, etc.) and great apes (gorilla, orangutan, chimpanzee and gibbon) . Of the three great apes: the gorilla, the orangutan, and the chimpanzee, the chimpanzee is the most human-like. This monkey is smaller than both the gorilla and the orangutan, but more "intelligent" than them. The body of a chimpanzee, devoid of a tail, is very similar to a human.

True, chimpanzees have 13 pairs of ribs, while humans usually have 12 pairs. The dark skin of the chimpanzee is covered everywhere except on the palms and face with coarse black hair. Chimpanzees live in small groups in the forests of Central Africa, east of Sierra Leone to Lake Victoria. They are very easy to tame and take root well in the zoo. Sometimes they become so attached to their favorite caretakers that they even cry and call them when they are sick!

Chimpanzee scholars claim that there are at least 20 different sounds that can be classified as "chimpanzee language". On the ground, chimpanzees move on four legs, leaning on the ground with their knuckles to support the body. A male chimpanzee can weigh up to 70 kg and reach a height of 1,5 m, although most chimpanzees are slightly smaller.

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Skin bacteria on guard of our health 14.11.2016

Modern medicine is increasingly finding out that we have been fighting any bacteria on our body in vain for so long. For example, the bacteria found in patients with severe acne can be very beneficial to our health.

One of the most common bacteria on our skin, called Propionibacterium acnes (so called because it was first found in a person with very severe acne, although it is still unknown if it is the cause of it) secretes a RoxP protein, which protects against oxidative stress, that is, the process in which the body receives damage due to oxidative reactions that are not characteristic of it. The most common cause of oxidative stress is solar radiation.

"This protein is essential for the very survival of the bacterium on our skin. The bacterium improves its habitat by releasing RoxP, but by doing so, it also benefits humans," says Rolf Lud, the scientist who made the discovery.

Oxidative stress is considered one of the causes of many skin diseases, including atopic dermatitis, psoriasis, and skin cancer. Since Propionibacterium acnes is extremely common, it lives on the skin of both sick and healthy people, but, according to Luda's research, different people have different levels of bacteria on the skin and, accordingly, the level of protective protein too.

That is what Lud's group is doing now. They study people with basal cell carcinoma and a precancerous condition called actinic keratosis with a healthy control group. The study will show if there is definitely any link between RoxP levels and skin disease. If the assumption is confirmed, then it will give impetus to new drugs based on the discovered protein or even symbiotic agents with bacteria.

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