Who is Copernicus?
shima zellaNicolaus Copernicus was a Polish astronomer and mathematician who is best known for his heliocentric model of the universe, which proposed that the Sun, rather than the Earth, is at…
What is Galaxy?
A galaxy is a massive collection of stars, gas, dust, and dark matter held together by gravity. Galaxies come in a wide variety of shapes and sizes, but they are…
Which is the strongest acid?
The strongest acid is the theoretical acid, called a superacid. Superacids are acids that have an acidity greater than that of pure sulfuric acid (H2SO4). The most commonly used superacid…
What is desalination?
Desalination is the process of removing salt and other minerals from seawater, making it safe to drink. This process is typically used in areas where freshwater is scarce or where…
Who is Isaac newton?
Isaac Newton was an English mathematician, physicist, and astronomer who is widely recognized as one of the most influential scientists of all time and as a key figure in the…
What is quantum physics?
Quantum physics is a branch of physics that deals with the behavior of matter and energy at the atomic and subatomic scales. It is based on the idea that energy,…
Distinguish between the loudness and intensity of sound
graceLoudness is a subjective quality of sound that is related to how we perceive the intensity or strength of a sound. Loudness is measured in decibels (dB). The louder a…
What is black hole?
A black hole is a region of space where the gravitational force is so strong that nothing, not even light, can escape. Black holes are formed when a very massive…
How is a star different from a planet?
Stars and planets are both celestial objects that are found in our solar system and beyond. However, there are several key differences between them: Size: Stars are much larger than…
Who is Stephen Hawking?
Stephen Hawking was a renowned theoretical physicist and cosmologist, who made groundbreaking contributions to our understanding of the universe. He is best known for his theory of black holes, which…