Science
Why Is The Singularity Of a Black Hole Infinitely Small In Size And Infinitely Dense? Scientists: We'Re Helpless Too
Since gravity is actually a manifestation of gravity, and the magnitude of gravity is proportional to mass, for those objects with smaller masses, their own gravity is smaller
If Scientists Have Discovered Something That Shouldn't Have Existed Hundreds Of Millions Of Years Ago, Should Humanity Be Wary?
In theory, when a civilization develops into a civilization that can cross the stars, there is basically no risk of extinction
Schrödinger's Cat Is Only One Of The "Four Great Beasts" Of Physics.
The "four great beasts" of physics actually exist only in thought experiments, and their proposal helps to develop and improve the relevant theories
The Earth Has Mountains Over 8,000 Metres High And Ocean Trenches Over 10,000 Metres Deep, So Why Do Scientists Still Say The Earth Is Round
There is a view that the reason why the Earth looks round is because of the role of the Earth's oceans, which simply means that a large amount of seawater has "filled in" the undulations of the Earth's surface.
Life May Not Have Originated On Earth, And There Is Growing Evidence That Life Should Have Originated In Outer Space
In the past days, scientists have been working on the study of meteorites, and as the research continues, there is more and more evidence that life should originate from outer space
How Terrible Is The Strongest Known 'Starquake'? It's The Equivalent Of a 21 Magnitude Earthquake And Would Be Too Much For Earth To Handle
Earthquakes are a natural phenomenon known to all of us, and they are not unique to the earth. In theory, any planet with a solid crust can have an 'earthquake', and for the sake of distinction, we can call it a 'starquake'. The strength of a 'starshock' varies from planet to planet, so how terrible is the strongest known 'starshock'?
On a More Macroscopic Level, Could The Solar System Be An Atom?
In the macroscopic world, the solar system is a system of celestial bodies centred on the sun, in which the vast majority of mass is concentrated and the major planets orbit the sun, while in the microscopic world, an atom is a microscopic system centred on the nucleus of an atom, in which the vast majority of mass is concentrated and electrons orbit the nucleus.
There Is No Air In Space To Provide Reaction Forces, So Where Does The Power To Move The Spacecraft Forward Come From?
The law of conservation of momentum means that the total momentum of a system remains constant when it is not subject to external forces or when the sum of the vectors of external forces is zero
There Have Been Ways To Create Artificial Gravity For a Long Time, So Why Isn't Artificial Gravity Used On Space Stations?
If we make the space station in space into a ring and let it rotate, then the humans in it will also feel the "centrifugal force" to "push" themselves towards the outer wall of the space station
How Much Energy Is Released When 1 Kilogram Of u-235 Is Fissioned? How Long Will There Be Enough Uranium On The Planet For Human Use?
If mankind can master the method of extracting uranium from seawater in large quantities in the future, there will be enough uranium on the earth to last for tens of thousands of years, even hundreds of thousands of years!