Medicine

Intestinal bacterium makes every blood type universal

Around 112.5 million blood is donated worldwide every year. But unfortunately not every blood type is suitable for every patient. In blood groups A, B and AB, the surface of the red blood cells contains various sugars, so-called antigens. If you get blood with a different blood type, your immune system attacks the antigens in this blood and that is very dangerous.
Food

Why is it so hard to pinch an egg?

The secret of the egg lies in its construction. You can see his bowl as two domes attached to each other. Architecturally, the hemisphere is a stable, strong construction. The reason for this is that internal forces in a dome help stabilize the structure as a whole. When a dome is affected by external pressure, the forces are absorbed and distributed over the whole.
Primeval people

New family member discovered in China

Homo sapiens is perhaps shorter than we think the only human species on earth. Australian and Chinese researchers have found traces of a hitherto unknown prehistoric people that lived in caves in southern China just 14,500 to 11,500 years ago. The bones and skulls of the five smallest individuals stand out because they have both primitive and modern characteristics, and in addition they have some unique features such as large eyebrow arches, wide cheekbones and a thick skull, which is also found in much older human species.
Brain

Tubes repair brain damage

Patients recover faster from a stroke using a new stem cell technique. A stroke is caused by a brain haemorrhage or a blood clot in the brain and often causes serious injury to the patient's brain tissue. Paralysis symptoms may occur in arms and legs or speech or balance problems arise.
Physics

How many dimensions are there?

What do we know There is no evidence for the existence of more dimensions than the four that Einstein worked with. However, many physicists still think that they must exist, because there are important theories that would not work without those dimensions. This is especially true for the so-called string theory, which can only be applied with seven extra dimensions.
Technic

How can a radio send my watch?

Radio-controlled clocks basically work like an ordinary quartz watch. They get their time impulse from a quartz crystal and are very accurate. They are no more than ten seconds in front or behind each month, but compared to atomic clocks, such a deviation is excessive. An atomic clock itself goes wrong for no more than one second - per million years.

Popular Posts

Body

Can you die from a bloody nose?

A bloody nose is usually caused by broken blood vessels in the nose. This is not life threatening unless the inner carotid artery ruptures - then you can bleed to death. Very occasionally the blood of a nose can block the airways, so that someone suffocates. These are the symptoms of a serious nosebleed: A heavy bleeding that just won't stop.
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Editor'S Choice

The Black Death unraveled | 2019
Diseases

The Black Death unraveled

The genetic material of one of the biggest killers ever, the plague bacterium Yersinia pestis, has now been mapped. The disease that she is transmitting, also known as 'the Black Death', has cost an estimated half of the European population in the 14th century in just five years. Johannes Krause of the University of Tübingen in Germany, together with British colleagues, searched for scraps of dried up blood and tissue in 46 teeth and 53 bones of four victims, who were buried in 1348 and 1349 in the East Smithfield cemetery in London.
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This is how you spot the ISS in the sky | 2019
ISS

This is how you spot the ISS in the sky

The international space station is located 400 kilometers from the earth and has a speed of approximately 28,000 km / h. So you would not expect that you can see it with the naked eye. But that is true. Occasionally, you may be lucky enough to perceive the ISS between the other celestial bodies as a light line, most similar to a powerful star or super-fast aircraft.
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This is what cannabis does with your body | 2019
Body

This is what cannabis does with your body

The abuse of prescription drugs is increasing hand in hand and the trade in cocaine and opium breaks all records. The United Nations Office on Drugs and Crime established this in a report last year. But narcotic and mind-expanding drugs not only produce dubious records. Some substances, such as cannabis, appear to have a positive effect on a number of diseases.
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New rocket devours itself during the space trip | 2019
Rockets

New rocket devours itself during the space trip

In an orange cloud of piping hot gas, the rocket slowly disengages from the launch pad. The engine roars like a flock of lions while the rocket over and over rises gravity. Soon he will send a satellite orbit around the earth, but after that the rocket will not roam the universe as scrap metal.
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New medicine reduces leukemia and heals 20% of patients | 2019
Medicine

New medicine reduces leukemia and heals 20% of patients

A new type of medicine has significantly reduced the number of cancer cells in 80% of leukemia patients and has completely eliminated them in one-fifth of patients. That is the preliminary result of a four-year study, which is now published in The New England Journal of Medicine. Tested for leukemia Venetoclax - as the new drug is called - was given in pill form to 116 American and Australian patients.
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Can an earthworm divide into two? | 2019
Animals

Can an earthworm divide into two?

If you're digging in the garden and you accidentally cut an earthworm in half, then you have two - that's the myth. But that kite doesn't fly. Cutting is deadly Usually a worm that you cut will just die, but the ends can still twist for a while, making it look like the two parts are still alive.
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The 13 most spoken languages | 2019
Language

The 13 most spoken languages

Half of the languages ​​are extinct in 100 years Many languages ​​have only a few thousand speakers, while some are spoken by millions of people. The 80 largest languages ​​are spoken by 80 percent of the world's population, while 3,600 small languages ​​represent only 0.2 percent of the world's population.
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Popular Categories

5 things that make it difficult for the panda
Animals

5 things that make it difficult for the panda

Animal lovers around the world were cheering when the panda went from 'threatened' to 'vulnerable' species on 4 September. The giant panda, which is a highly personal symbol for the preservation of animal life, now shows how effective it can be if people fight for endangered species.
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New proofs: Solar system has 10 planets
Solar system

New proofs: Solar system has 10 planets

Since Pluto was degraded to a dwarf planet in 2006, our solar system has eight planets on paper. But in reality it is probably different. In recent years, astronomers have found various indications that a huge, dark planet is hiding in the outer regions of the solar system.
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Watch the solar eclipse safely
Solar eclipse

Watch the solar eclipse safely

Protect your eyes with eclipse glasses If you look at a solar eclipse without protection, you can permanently damage your eyes. A total solar eclipse takes a few minutes, and during the time that the moon completely blocks the sunlight, you can basically view the rare phenomenon.
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The worst attacks with biological weapons
Diseases

The worst attacks with biological weapons

1. Flea with the plague Victims: 120 dead Between 1930 and 1942, Unit 731, a secret division of the Japanese army, released around 15 million plague-infected fleas in the Chinese cities of Changde and Ningbo. 120 people died. 2. Anthrax by post Victims: 5 dead, 17 sick In 2001, unknown perpetrators sent letters with anthrax traces to American senators and media organizations.
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Is the Bermuda Triangle really that dangerous?
Ships

Is the Bermuda Triangle really that dangerous?

The Bermuda triangle is a sea area that lies southeast of the US. Since a large number of ships and planes were killed in this 'warning triangle' in the 1950s, all kinds of wild stories have been circulating. You can't think of it as crazy or there are disappearances attributed to it: from UFOs to demons.
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Scientists fear forest death if the Amazon continues to burn
Nature

Scientists fear forest death if the Amazon continues to burn

The Amazon rainforest is still on fire. That is not only a problem for the flora, fauna and people who are in the burning places. Because if the forest disappears even further, we will soon reach a so-called tipping point in the ecosystem of the rain forest that leads to a pronounced forest death, according to Brazilian climatologists.
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Jupiter: giant of the solar system
Universe

Jupiter: giant of the solar system

Jupiter - the giant planet Jupiter is the giant of the solar system. It is the first of the outer gas planets and weighs more than twice as much as all other planets of the solar system combined. Jupiter is a gas planet and therefore has no solid surface. It consists of gas and may have a fixed core.
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