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Science

The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.

203,801 Questions

How did the size of the universe change?

In the immediate aftermath of the "Big Bang" there was rapid inflation of the universe. That slowed and the universe is now believed to be still, slowly, expanding.

Is there a list of things in space A-Z?

There isn't a definitive A-Z list of things in space due to the vast and ongoing discoveries made in astronomy. However, common items in space that could be categorized alphabetically include asteroids, black holes, constellations, galaxies, planets, quasars, stars, and nebulae.

How hard is it to become a veterinarian?

Very - you need to complete at least three years of undergraduate courses like biochemistry, physics, genetics, microbiology, etc. You also need to have several hundred hours of experience working with a veterinarian and lots of experience working with animals. Once you are accepted to vet school, you have to complete four years of intense training, pass the National Board Exam, pass a State licensing exam and become accredited before you can start practicing.

When was the wedge discovered?

The Antikythera mechanism, also known as the "wedge," was discovered in 1901 in an ancient shipwreck off the coast of the Greek island of Antikythera.

When a person can only see nearby objects?

This condition is known as myopia, also referred to as nearsightedness. Individuals with myopia have difficulty seeing distant objects clearly, but can see nearby objects more clearly. It is often the result of the eyeball being too long or the cornea being too curved, causing light rays to focus in front of the retina instead of directly on it. Eyeglasses, contact lenses, or refractive surgery can help correct myopia.

What are the three types of dominance?

The three types of dominance are complete dominance, incomplete dominance, and codominance. In complete dominance, one allele is fully expressed over another. In incomplete dominance, neither allele is completely dominant, resulting in a blending of traits. In codominance, both alleles are expressed equally, leading to a distinct phenotype that shows features of both alleles.

Is chipmunk a European word?

No. "Chipmunk" is probably an Algonquian. Means "red squirrel" or headfirst; which refers to the way a chipmunk runs down a tree.

What does someone in the field of Ophthalmology study?

Someone in the field of Ophthalmology studies the anatomy, physiology, and diseases of the eye. They diagnose and treat various eye conditions, perform eye surgeries, and prescribe eyeglasses or contact lenses to improve vision.

Who came up with the Giant Impact theory?

The Giant Impact theory was developed independently by William Hartmann and Alastair G. W. Cameron in the mid-1970s. They proposed that the Moon was formed from debris ejected when a Mars-sized body collided with the early Earth.

What was Ernest Rutherford most known for?

He is best known for his new model of the atom. He performed the alpha scattering experiment and concluded that the nucleus is positively charged, very dense and makes up a very small part of the atom such that most of an atom is empty space.

What was last to be added to the system of classification?

The most recent addition to the system of classification is the domain category, which was introduced in the 1990s. This new category was added to the existing system of classification (kingdom, phylum, class, order, family, genus, species) to accommodate the diversity of life forms discovered through advances in genetic research.

What are interesting rocket facts about kids?

  1. Rockets are often painted with bright colors and fun designs to appeal to kids.
  2. For younger children, interactive exhibits about rockets can help teach them about space exploration in a hands-on way.
  3. Kids can build and launch their own model rockets as a fun and educational activity.

Is sun higher or lower in winter?

The sun is lower in the sky during winter due to the tilt of Earth's axis. This results in shorter days and less direct sunlight reaching the surface in the Northern Hemisphere where winter occurs from December to February.

What year did bbc2 first transmit?

BBC2 first transmitted on 20 April 1964. It was the third television channel established by the British Broadcasting Corporation (BBC), complementing the existing BBC1.

What is a mixture of colored lights called?

A mixture of colored lights is called an RGB color model, which combines red, green, and blue light to create a wide range of colors. This model is commonly used in electronic displays such as TVs, computer monitors, and LED lighting.

What is the city auditor in a cell city?

In a cell city analogy, the city auditor would be the lysosome. Lysosomes are responsible for cleaning up waste and debris within the cell by breaking down and recycling unwanted materials. Just like a city auditor ensures that resources are being used efficiently, lysosomes maintain the cleanliness and functionality of the cell.

Why are mandalas important?

Mandalas are important as spiritual and ritual symbols representing the universe, unity, and harmony. They are used in meditation as a tool to focus the mind and promote relaxation. Mandalas can also convey personal meaning and serve as a form of self-expression and creativity.

What is scismology?

Seismology is the study of earthquakes and the movement of the Earth's crust. It involves monitoring and analyzing seismic waves to understand the causes and effects of earthquakes, as well as to assess seismic hazards and risks. This field of study is crucial for earthquake forecasting and monitoring.

The major divisions in geologic time are?

Precambrian

Paleozoic: -cambrian

-ordovician

-silurian

-devonian

-mississippian

-pennsylvanian

-permian

Mezozoic: -triassic

-jurassic

-cretaceous

Cenozoic: -tertiary

-quaternary

What pieces of equipment have actually flown through and studied most of the solar system?

Some of the most notable spacecraft that have flown through and studied most of the solar system include Voyager 1 and 2, Cassini-Huygens, and New Horizons. These spacecraft have provided groundbreaking data and images of planets, moons, and other celestial bodies in our solar system.

Has anyone fly on Jupiter?

No, no human has ever flown on Jupiter. Jupiter is a gas giant with extreme atmospheric conditions, including high levels of radiation and pressure, making it inhospitable for human exploration or travel.

What is something that gives us light?

The sun is a natural source of light that provides warmth and illumination to Earth.

When did William Buckland discover the first fossil?

The first note of the fossil now known as Megalosaurus bucklandi was a description of a bone first discovered in 1676 in a limestone quarry near Cornwell. It was described by Robert Plot, then curator of the Ashmolean Museum, Oxford. The description was given in Natural History of Oxfordshire in 1677.

This is believed to be the first fossil bone of any of the broad Dinosaur family. It was the lower extremity of a femur. Its binomial name was changed in the early 1990s, from an earlier name. It was considered that the original bone of the 1670s (unfortunately now only known from a drawing), was too incomplete to form the basis of a formal species description.

Professor William Buckland of Oxford was visited by Georges Cuvier, and the lizard association was then made. Buckland's work continued in the 1820s, of more material, and led to the present name.

What includes space and all the matter and energy in it?

The universe includes all of space, time, matter, and energy. It encompasses everything that exists, including galaxies, stars, planets, and all forms of life.

Why do people act strangely when there is a full moon?

They don't.

But people believe they do - even educated people.

they eIn a study, the people in hospital causalty/A&E units were asked about what they expect at a full moon. They all indicated that they expected more people to report, and to report with strangely acquired conditions.

The data was analysed and no patterns of unusual behaviour were occurred.

The same type of study was done with police officers - they too all aid that the full moon gets them busier - but the facts and figures don't back them up.