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Spacetime, strings, and the quantum field that allow time, energy, and matter to exist.
Just think this.....is the solar system did NOT exist then we would not exist.
- many elements doesn't exist in pure form in the nature - many objects are made from alloys - many objects are mixture of compounds
weiners
Many types of gasoline exist; read this technical review.
Um... "block wave"? Do you mean "black hole," and if so how did you manage that typo?Anyhow, they're predicted by theory, and these things predicted by theory would have certain characteristics, and lo and behold there are objects out in space that appear to have exactly those characteristics. Ergo, black holes must exist, and these objects must be them.
Spacetime, strings, and the quantum field that allow time, energy, and matter to exist.
Objects that exist, scientifically are substances.
-Gravity (so it doesnt float away) -Temp (not too hot or cold)
the inhabitants could have special adaptations, such as fish have gills that allow them to breathe under water.
If you choose to believe in a god, they exist because he wanted them to exactly as they are. He doesn't allow them to exist, he wants them to exist.
Dynamics is the study of relationships that exist between forces and the motion of objects.
Just think this.....is the solar system did NOT exist then we would not exist.
The only requirement for mutual gravitational forces to exist between two objects is that the objects have mass. That's usually a simple requirement to satisfy.
If aliens exist, the alien races may have mammavian characteristics.
If alien races do exist, they could possibly have hermaphrodite characteristics.
Alien races could possibly have elf characteristics if they do exist.