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Jul 25, 2023 · Astronomy is the scientific study of the universe using mathematics, physics, and chemistry. History of astronomy: The beginnings.
- Square Kilometre Array
Construction of the Square Kilometer Array Observatory...
- Lunokhod
Lunokhod 1 was the first successful rover to explore another...
- Earth
Planet Earth: Everything you need to know. References. By...
- Square Kilometre Array
- Earth's orbit. While Earth orbits the sun, the planet is simultaneously spinning on an imaginary line called an axis that runs from the North Pole to the South Pole.
- Earth's formation and evolution. Scientists think Earth was formed at roughly the same time as the sun and other planets some 4.6 billion years ago when the solar system coalesced from a giant, rotating cloud of gas and dust known as the solar nebula.
- Internal structure. Earth's core is about 4,400 miles (7,100 km) wide, slightly larger than half the Earth's diameter and about the same size as Mars' diameter.
- Magnetic field. Earth's magnetic field is generated by currents flowing in Earth's outer core. The magnetic poles are always on the move, with the magnetic North Pole accelerating its northward motion to 24 miles (40 km) annually since tracking began in the 1830s.
- All mammals have backbones, are warm-blooded, have hair or fur, and drink their mother’s milk when they are born. All mammals are vertebrates, which means they have backbones, unlike worms or insects.
- Blood, sweat, saliva (or spit), tears, breastmilk, semen, urine, mucus, lymph, plasma, serum, and digestive juices. The human body is composed mostly of water, which our body uses to produce different fluids.
- Liquid, solid, and gas. Water exists in three states. We use the liquid state most often in our daily activities, for drinking, washing things, and cooking.
- Salt. Minerals (like salt) are natural compounds formed through geological processes. Saline is the term used to describe something, including a solution, that contains salt.
- Science successfully explains natural phenomena through rational investigation and logical reasoning rather than by recourse to superstition and mysticism.
- When scientific disputes arise, the ultimate arbiter is not expert authority or common sense but experimental evidence, guided by theory. Tweet: Fits as is!
- Scientific theories are not “guesses” but are logically rigorous attempts to explain the observed facts of nature and to predict the results of new observations.
- When a theory’s predictions are confirmed, it becomes an essential tool in the further practice of science, but even good theories may someday be superseded by theories more comprehensive or more accurate.
Everything You Always Wanted to Know About Sex* (*But Were Afraid to Ask) is a 1972 American sex comedy anthology film directed by Woody Allen. It consists of a series of short sequences loosely inspired by David Reuben 's 1969 book of the same name .
Nov 10, 2020 · Nov 10, 2020 9:00 AM. Everything You Need to Know About Energy. We'll talk about the different types—kinetic energy, electrical potential energy, etc.—and different sources, from fossil...
So, there you have 15 extraordinary human biology facts you can use to impress (or gross-out) your next date. Understanding it not only gives you the academic foundation you need to enter a career in medicine or science, but it also helps you interpret and take better care of your body.
