Science

Scientists make razor-sharp knives from… wood

The wooden blade is almost three times sharper than a stainless steel table knife, allowing it to cut through, for example, a steak with...

Could a ‘vaccine tax’ remedy the unfair distribution of vaccines around the world?

While rich countries are already working on booster shots, poor countries have not even vaccinated all vulnerable elderly people against corona. But a...

What Happens In Grandma’s Brain When The Grandchildren Come Over?

Scientists have figured it out! Many people who have been fortunate enough to grow up with loving grandparents know that they enhance a child's development...

Oldest monumental building made of adobe bricks discovered

Aerial view of Los Morteros hill in northern Peru. (Image: Ana Cecilia Mauricio Llonto) In northern Peru, archaeologists have discovered the oldest adobe monumental...

Success with heart

Heart problems and their solutions in sight. (Image: magicmine / iStock) Weakened pumping organs, congenital defects and even the need for replacement: The current...

The lower part of our atmosphere appears to be growing

Against all odds, the upper limit of our troposphere is still moving upwards. Our planet is surrounded by a relatively thin layer of gases: the...

Russians blow up satellite, after which (their own) astronauts have to take cover

The action resulted in more than 1,500 relatively large debris, which shortly afterwards posed a real threat to the International Space Station, which is...

Covid-19: Risk gene variant increases risk of death

Coronavirus and human DNA. (Image: peterschreiber.media/ iStock) It has long been known that in addition to age, gender and previous illnesses, genes also have...

Air pollution killed more than 300,000 Europeans in 2019

And that while more than half of these deaths could have been prevented. Air pollution is a real silent killer. Hundreds of thousands of...

How shy are bats?

It is no longer just the moon and stars that illuminate the bats' habitat. (Image: slowmotiongli / iSock) Animals of the night in the...

Salt turns out to have a very surprising effect on our brains

Interestingly, it slows blood flow in the brain, which can lead to low oxygen levels and damage brain tissues. It is known that too much...

Movable molecules allow the spinal cord to heal

Spinal cord treated with the bioactive scaffold with regrowing axons (red). (Image: Samuel I. Stupp Laboratory / Northwestern University) For people who are paralyzed...

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