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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
Why do the lengths and directions of a shadow change during the day?
the lengths and direction of shadows change during the day because of some factors these are:
1) position of the earth facing the sun
2) time of the day
3) power of suns rays
4) place object is in
5) what object is around
The force of gravity causes all object near earth surface to fall with an acceleration of twenty?
The force of gravity causes all objects near the earth's surface to fall with exactly 9.80665 m/s2 (approx. 32.174 ft/s2). The statement in the question is accurate except for the actual magnitude of the earth's gravitational constant. The earth's gravitational constant g (or go or gn) is 9.80665 meters per second squared per international agreement. A link is provided to the Wikipedia article with the figure stated along with particulars and other related links.
A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light from reaching the Earth. This alignment causes the Moon to cast a shadow on the Earth, resulting in either a partial or total solar eclipse.
What occurs when matter transitions between solids liquids and gas?
When matter transitions between solid, liquid, and gas states, molecules are either gaining or losing energy to move farther apart or closer together. In a solid, molecules are tightly packed and vibrate in fixed positions. In a liquid, the molecules are more spread out and flow past each other. In a gas, the molecules are far apart and move freely in all directions.
Where is the omniplex and what street?
the omniplex is in Oklahoma city,Oklahoma and it is on 2100 NE 52nd street
The average life span of a star depends on its mass. Low-mass stars, like our Sun, can live for about 10 billion years. Higher-mass stars have shorter life spans, burning through their fuel faster and living for only millions of years.
Will peeing in space make you move?
No, peeing in space will not cause you to move. In microgravity conditions, urine is expelled through a suction system created to collect bodily waste. The act of peeing itself will not result in significant movement.
How many artificial satellites are there and name them?
As of 2021, there are over 3,000 artificial satellites orbiting the Earth. Some well-known satellites include the International Space Station (ISS), Hubble Space Telescope, and Global Positioning System (GPS) satellites.
What is the system of objects around the sun?
the solar system, made up of the planets, asteroid belt, comets, and the kuiper belt
FeCl2 is the chemical formula for iron(II) chloride, which is a chemical compound composed of iron and chlorine. It is a greenish to yellowish solid that is soluble in water and commonly used as a precursor in the synthesis of other iron compounds.
"Dramatically" means in a striking or impressive manner that has a significant impact or effect. It often implies a noticeable change or difference.
How grains of different sizes are affected by wind erosion?
Grains of different sizes are affected by wind erosion in different ways. Larger grains are usually more resistant to movement and tend to stay close to the surface, while smaller grains are easily lifted and transported by the wind over longer distances. Smaller grains can be carried high into the air and can travel far before being deposited, whereas larger grains tend to be deposited closer to the source of erosion.
At what speed do light waves in space travel?
Light waves in space travel at about 186,282 miles per second or approximately 300,000 kilometers per second. This speed is constant and is known as the speed of light in a vacuum.
Does the Swallow Tailed Kite have any predators?
The Swallow-tailed Kite's main predators are larger birds of prey such as eagles, hawks, and owls. Nestlings are especially vulnerable to predation due to their small size and inability to fend off attackers. Adults have fewer predators but can still be targeted by large raptors.
Is the spectrum of color called its value?
No, the spectrum of color is not called its value. The value of a color refers to its lightness or darkness - how close it is to white or black on a scale of grays. The spectrum of color refers to the range of colors that can be seen by the human eye, such as red, orange, yellow, green, blue, etc.
- Stars are massive, luminous celestial bodies that emit heat and light through nuclear fusion in their cores.
- Stars come in various sizes, colors, and temperatures, which determine their place on the Hertzsprung-Russell diagram.
- Stars play a crucial role in the universe, as they are responsible for generating and dispersing heavy elements through processes like supernovae.
A cow grows by consuming food, primarily grass and grains, which provide the necessary nutrients for growth and development. Additionally, cows have a natural ability to convert these nutrients into muscle, bone, and other body tissues as they grow.
Astronomy is the scientific study of celestial objects such as stars, planets, comets, and galaxies, as well as phenomena that occur outside the Earth's atmosphere. It involves the observation and analysis of these objects and their movements in the universe.
What happens when sunlight hits a dark surface?
When sunlight hits a dark surface, the surface absorbs more of the light and converts it into heat compared to a light-colored surface. This absorption of light energy causes the dark surface to heat up more quickly, which is why dark surfaces can feel hotter to the touch than light-colored surfaces under direct sunlight.
Why do rockets need to carry a supply of oxygen?
Rockets need oxygen to facilitate the chemical reaction for generating thrust. By combining oxygen with fuel in the combustion chamber, rockets produce the hot gases needed to propel the vehicle through space. This enables rockets to overcome the lack of atmospheric oxygen present in space.
Tornado alley stretches from Texas to Iowa?
That is correct. Tornado Alley is a region in the central United States known for its high frequency of tornadoes, extending from Texas to Iowa. This area experiences a large number of tornadoes each year due to the collision of warm, moist air from the Gulf of Mexico with cold, dry air from Canada.
Why do livingthings reproduce?
Living things reproduce to ensure the continuation of their species and to pass on their genetic traits to future generations. Reproduction is essential for the survival of a species and helps to maintain genetic diversity which can increase chances of survival in changing environments.
What evidence can scientists provide to support the Big Bang theory?
There is cosmic background radiation that is thought to be the "smoke" after the big bang which can still be measured in space today. This is low energy radio waves (which we pick up as static) that can be detected at about the same level wherever we look, leading scientists to think that it is the result of the entire universe having expanded from a single point. Then there is a specific ratio of the elements. After the Big Bang, it is believed only the simpler elements, such as hydrogen and helium, existed and that all other elements were created in the high energy environment of stars.
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Once again, the question has the whole thing backwards.
Scientists do not get together at the coffee shop to dream up a theory, and then
go out looking for evidence to support it. That's not how it works. Scientists make
measurements and observations that describe what is, and then work to assemble
a theory that can explain the evidence they already have.
From that point, their job is to tell a good theory from a bad one. Any theory that
seems to explain what has already been seen also predicts things that have not
been seen yet, and that leads to the other half of the scientists' job ... testing
the predictions of the theory. NOT looking for evidence to support it, but testing
the predictions it makes to see whether they're true ... Or not. If most of them
are true, then the theory survives, with possibly a few changes. If most of them
are not true, then the theory is out. The evidence is still there, along with the
new evidence that came from testing the predictions, but the theory itself is as
good as gone.
Scientists are human people, which leads to the inconvenient fact that there are
good scientists and poor ones. The scientists who go around looking for evidence
to support their favorite theory are generally not the good ones.
How do the eyes gather information?
Eyes gather information through photoreceptor cells in the retina that detect light. These cells convert light into electrical signals which are sent to the brain via the optic nerve for processing. The brain then interprets this information to form a visual perception.
What did the boys achieve at the 1960 National Science fair in october sky?
In the movie "October Sky," the boys achieved success by successfully launching a rocket that reached an impressive height, showcasing their scientific skills and determination. This achievement helped them gain recognition and support for their future endeavors in rocketry.
