Humans And Birds Both Stand On Two Feet, So Why Can Birds Sleep Standing Up But Not Humans?
When we humans feel very tired, we often say that we can fall asleep standing up, but this is just a description. In reality, it is impossible for humans to sleep standing up, but there are many animals in nature that have this such a skill that humans do not have, for example, horses can sleep standing up effortlessly.
Coincidence Or Something Else? Why Do We Never See The Back Of The Moon?
The moon is the closest planet to the earth and the brightest and most easily observed object in the earth's night sky. Because the moon is always facing the same way towards the earth, for us humans living on earth, we can only ever observe one fixed side of the moon.
Which Is The 2nd Closest Star To The Sun? What About The 3rd Closest? Take a Look At The 10 Closest Stars To The Sun
According to astronomers, Barnard's star is approaching the Sun at a rate of about 107 kilometers per second, and on this trend, it will arrive at a distance of 3.85 light-years from the Sun in 11800 AD, replacing Proxima as the closest star to the Sun
Mysterious Circles Have Appeared In The Universe And Scientists Don't Know How To Explain It... Is It The Emergence Of An Advanced Civilisation?
Whichever way you look at it, humans cannot be the only intelligent creatures in the universe. As far as we know, the universe has existed for at least tens of billions of years, so a reasonable speculation is that there is probably an advanced civilization in the universe that is hundreds of millions or even billions of years ahead of humans, and if that is the case, their level of technology is something that we humans simply cannot imagine.
There Is a Mysterious Force That Controls The Workings Of The Universe And About Which Mankind Knows Almost Nothing
Further research shows that this mysterious force accounts for 68.3% of the total mass energy of the universe, and it is because of this that it is able to overcome gravity and become the dominant force controlling the operation of the universe
Mercury Has Set Seven Solar System Bests, Other Than Being The Closest To The Sun
Because Mercury does not have an atmosphere to play a role in insulation, so the temperature of the back side of Mercury can be as low as minus 172 degrees Celsius, and because of the proximity of the sun, the temperature of the sunny side of Mercury will soar to 432 degrees Celsius under the baking of the sun, so it can be seen that Mercury is simply a realistic version of the "world of ice and fire"
