Science

Why is there hardly any mention of the "ozone hole" anymore? Is it the lie of the century, or has it healed?
What was the most mentioned environmental issue in the late 20th and early 21st centuries? Probably the first thing that comes to most people's mind is only the greenhouse effect, while ignoring another issue that is also of great concern - the hole in the ozone layer.
By gaut chen3 years ago in Earth
In 30 years' time, there may be only four places where the Winter Olympic Games can be held again.
If greenhouse gas emissions continue to accelerate, professional athletes will be forced to face more unsafe or unfair venues.
By jsyeem shekels3 years ago in Earth
Harvard scientists: 10 billion years ago, the universe is full of life
On a clear night, when looking up at the bright diamond-like stars, I believe I am not the only one who has thought: at this moment, are there "people" on those stars looking up at the stars? And they are not also have the same feelings?
By gaut chen3 years ago in Earth
Bombard the testicles with ultrasound, gel the vas deferens. Scientists use everything to get men to have contraception.
Author: Gabe Allen At first glance, COSO looks like a dedicated "bathtub" for Apple Mouse. The bowl-shaped container is the size of a hand, has a smooth surface, is covered with a black-and-white matte coating, a circle of blue light around the edges, and a socket that adapts to modern charging wires. This elegant gadget is the latest birth control tool for men with testicles. The device uses ultrasound to "bomb" the balls, hoping to make the sperm lose its ability to move.
By jsyeem shekels3 years ago in Earth
What will the world be like if controlled fusion becomes a reality?
In today's technologically advanced world, controlled fusion has long been nothing new, but there are still many people who wonder why humans are developing controlled fusion, and it starts with energy.
By gaut chen3 years ago in Earth
Are they ancient aliens? A fact that turns perceptions upside down: myth or lost history
As we all know, technology has changed not only the quality of human life, the exceptionally sophisticated astronomical telescopes and breathtaking launch vehicles, not only allows humans to see the shocking scenery of tens of billions of light-years away, but also allows humans to get rid of the millions of years of bondage on Earth, to personally experience the immensity of the universe.
By gaut chen3 years ago in Earth
The universe is vast and infinite, and human beings are as small as dust in it, so what is the meaning of existence?
For an individual organism, any part that makes up the body, even an extremely small cell, has its own necessity and importance.
By gaut chen3 years ago in Earth
Carboniferous "era of giant insects": dragonflies as big as eagles, centipedes have more than 2 meters!
In the 2018 American Phobia survey by Chapman University in California, 39% of respondents were found to be afraid of insects, centipedes or spiders. It's almost certainly a universal phenomenon, with many people getting a little queasy inside when it comes to insects or spiders. But thankfully, when giant insects ruled the earth, they did not live in the Carboniferous period (355 million years ago - to 295 million years ago). After all, modern insects are nothing compared to the giant bugs of prehistoric times.
By gaut chen3 years ago in Earth
On July 17, 1994, humanity was just one step away from extinction?
From a certain point of view, the Earth is equivalent to a giant "spaceship", which carries countless lives running through the universe at a super high speed.
By gaut chen3 years ago in Earth
Scientists find 'iron screw' in 300 million-year-old meteorite, unveiling a prehistoric era at its peak
If we count from the ancient apes, humans have been on the earth for millions of years, however, compared with the earth has been 4.6 billion years, millions of years seems so insignificant, even with "a snap of the fingers" to describe is not too much.
By gaut chen3 years ago in Earth
The moon found 10,000 meters of tunnels, scientists studied and confirmed: the builder is not human
As the closest natural body to Earth, the role of the moon is not simply to decorate the night sky, it is also an essential and important part of the origin of life on Earth, if it were not for the existence of the moon, whether the Earth today would still be so lush life, may have to play a big question mark.
By gaut chen3 years ago in Earth
He said he was an alien, and in the face of questions from people around him, he took out his family heirloom as evidence
On the question of whether there are aliens on our planet, many people are unable to make a judgment, even scientists can not make a conclusion, because as people on Earth, never really seen aliens
By gaut chen3 years ago in Earth