Science

Gas and Natural gas, what is the difference between them?
As the saying goes: open the door to seven things, firewood, rice, oil, salt, soy sauce, vinegar, and tea. As times change, the term firewood has become more and more unfamiliar to many friends who grew up in the city, the rural cook stove no longer exists, replaced by a variety of gas stoves and appliances. So what is the gas burning in the gas stove in the end? What is the difference between the gas, gas, and natural gas that we usually hear about?
By Deljewitzki4 years ago in Earth
Russian Defense Ministry: the use of phosphorus bombs by the U.S. Army!
The situation between Russia and Ukraine continues to be tense, sparking global concern. The Russian Defense Ministry said the Ukrainian armed forces are using phosphorus-containing munitions banned by international law near Gospel airport on the outskirts of Ky iv, and they are using the phosphorus-filled munitions in 122mm -30 howitzer shells and BM-21 rocket shells in an attempt to fend off a Russian attack on the Ky iv airport, Rosa tom reported.
By Fei Fei4 years ago in Earth
Why does the sea rise and fall at high tide?
People who live by the sea know that seawater always goes in and out, and the sea surface has a rise and fall. At low tide, the seawater will gradually recede, the sea gradually backs down to reveal a large beach; at high tide, the seawater from the depths of the ocean will continue to surge up the coast, the waves roll, and the water level rises.
By Apostolakis4 years ago in Earth
Beavers are keen on "cutting down trees" all their lives, and they are easily killed by trees. Why don't they give up?
Beavers are amazing animals. They are one of the few animals in nature that have the ability to change (modify) their environment.
By adalberto alejandrina4 years ago in Earth
A disaster is brewing? UN: An oil tanker may disintegrate
The rapid development of human society is inseparable from resources, especially energy, because without energy, all kinds of equipment cannot operate. Humans officially entered the oil age in 1867. In that year, the proportion of human consumption of oil accounted for 40.4% of the primary energy consumption structure of that year, exceeding 38.8% of coal.
By suzanne darlene4 years ago in Earth
"Spiral" flying objects appear? U.S. to hold 'UFO hearing'
It seems that there has been no news about UFOs for a while. Have UFOs disappeared? In fact, the so-called UFO is not necessarily a flying saucer from an alien planet. Some unknown natural phenomena or artificial flying objects may be mistaken for a UFO.
By adalberto alejandrina4 years ago in Earth
Scientists are terrified of the situation of the US Mars helicopter
Although Mars also has an atmosphere, the density of Mars' atmosphere is very low, only about 1% of that of Earth, which means that the air on Mars is very thin, and we can't breathe if we stand directly on the surface of Mars. It is also because the atmospheric density of Mars is very low that it is more difficult for those rotorcraft to take off on the surface of Mars. Not only the take-off weight of the rotorcraft will be limited, but also the rotational speed of the rotor is very high.
By sondra mallen4 years ago in Earth
Alien spaceship coming? 3 metal balls come to India
Whenever there are some flying objects or other phenomena in the sky, some friends may guess whether an alien spacecraft has visited the earth. Judging from the previous sightings, many flying objects were only photographed, and these photos were blurred, and it was impossible to see what the flying objects in the photos were, let alone be able to touch them. Flyer too. Even if we have access to these flying objects, we may not necessarily be able to reveal the truth about these flying objects.
By Vicky4 years ago in Earth
How fierce is the world's "king of all horses"?
As the saying goes: "A thin dead camel is bigger than a horse", in many people's opinion, even if a camel is smaller, it is still bigger than a horse. But that's not necessarily true!
By Baudamolova4 years ago in Earth
The reason why early humans wore clothes maybe even more interesting!
Have you ever wondered why humans are the only ones who wear clothes when there are more than a million species of animals on earth?
By Deljewitzki4 years ago in Earth
Nuclear radiation residue in the sand and dust? Where does it come from?
Since March 15, strong winds have been blowing in the African Sahara Desert, and violent dust storms have not only hit Spain, Portugal, France, Switzerland, and other places but even spread to the more northerly United Kingdom. Many European cities throughout the sky turned orange or even blood, as if in the science fiction film Mars, buildings, roads, and vehicles were covered with sand and dust, and the air was seriously polluted, filled with the smell of sand and dust. At a ski resort in France, the snow-white snow field turned into "dirt slopes". The mountains near Madrid, Spain, white snow with a red tinge.
By Fei Fei4 years ago in Earth
Face palsy fox misanthropic face, rely on the face of the low go red
Recently, a conservationist captured images of five wild Tibetan fox cubs moving around in Lilian Mountain National Park in Gansu! The young Tibetan foxes, whose faces are not yet so square, are very cute and play around in the grassland with a lot of camera sense!
By Apostolakis4 years ago in Earth