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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 was the space race so important?

The space race was important for several reasons. It fueled technological advancements, especially in the areas of rocketry and telecommunications. It also served as a demonstration of political and military power between the United States and the Soviet Union during the Cold War. Additionally, it inspired a new generation of scientists, engineers, and astronauts.

What will happen in the apocalypse?

In the apocalypse many things might happen like: Global Pandemic, Global Warming, Crustal Displacement/Pole Shift, Super Volcano/Yellowstone National Park, Meteor Impact, or an Omnicide (human extintion due to human itself/human actions.

Is Bill Nye the Sciences Guy still alive?

As of November 8, 2013, he is alive, well, and active.

What is an organ scientifically?

An organ is a group of tissues that work together to perform a specific function in the body. Organs are made up of different types of cells and tissues that collaborate to carry out specialized tasks necessary for the overall health and functioning of the organism. Examples of organs include the heart, lungs, liver, and brain.

Examples of mutulism?

  1. Bees and flowers: Bees get nectar from flowers while transferring pollen, aiding in pollination.
  2. Nitrogen-fixing bacteria and legume plants: Bacteria in root nodules provide plants with nitrogen, while the plants provide the bacteria with sugars.
  3. Gut bacteria and humans: Bacteria in our digestive system help break down food and produce vitamins in exchange for nutrients and a habitat.

What occurs when the moon casts its shadow on Earth?

When the moon casts its shadow on Earth, it creates a solar eclipse. During a solar eclipse, the moon passes between the Earth and the Sun, blocking the sunlight and casting a shadow on the Earth's surface. This phenomenon can result in a partial or total eclipse, depending on the alignment of the Sun, Earth, and moon.

Did jj Thomson or ernest Rutherford discover the neutron?

Neither J.J. Thomson nor Ernest Rutherford discovered the neutron. The neutron was discovered by James Chadwick in 1932 through experiments involving the interactions of neutrons with other atomic particles.

What is an observable fact event of circumstances?

An observable fact is something that can be seen, heard, or experienced directly by an individual or through scientific measurement. An event is a specific occurrence or happening that can be identified at a particular time and place. Circumstances refer to the conditions or factors surrounding a situation or event.

Who can hear ultrasonic?

Animals such as dogs, bats, and dolphins can hear ultrasonic frequencies that are beyond the range of human hearing. They have specialized auditory systems that allow them to detect and interpret these high-frequency sounds.

What does mars and earth have in common?

They have fairly close spin rates; the Earth spins once in 24.5 hours, while Mars spins in 24 hours 40 minutes or so. What they also have in common are that they have an atmosphere, water, an equator, poles, and seasons.

What do these word have in common biology chemistry anatomy nuclear physics?

These words are all related to science. Biology is the study of living organisms, chemistry involves the composition and properties of substances, anatomy focuses on the structure of organisms, and nuclear physics deals with the behavior of atomic nuclei.

Is sublimation the way a balloon decreases in volume when the temperature is decreased?

No, the decrease in volume of a balloon when the temperature is decreased is due to the decrease in kinetic energy of the gas molecules inside the balloon, causing them to move closer together. Sublimation is the process where a solid changes directly into a gas without passing through the liquid state.

What did the Aztecs feed their gods?

The Aztecs believed in offering their gods sacrifices of human hearts, blood, and other offerings like animals, plants, and precious items. These sacrifices were believed to maintain the balance in the cosmos and ensure the gods' favor.

Does topaz have a electrical conductivety?

Pure topaz is an electrical insulator, meaning it does not conduct electricity. However, impurities or certain types of topaz, such'all that has been irradiated, can sometimes exhibit weak electrical conductivity.

Why would droplets of water form on the outside of the glass?

Droplets of water form on the outside of a glass when warm, moist air comes into contact with the cold surface of the glass, causing the air to cool down and reach its dew point, leading to condensation.

Is there proof of an afterlife?

Like the belief in God, the belief in the existence of the afterlife rests upon tradition, not measurable proofs. You believe that it exists and live accordingly, or you reject it. The afterlife, and God, cannot be conclusively proven, in order to afford us free-will.

See also:

Indications that God exists


More information:

One of the central beliefs of Judaism, as stated in the Talmud (Mishna, Sanhedrin 11:1) and codified by Maimonides (1135-1204), is that the soul continues to exist and is treated in accordance with the person's actions while he or she was alive. This applies to all people, whatever their religion.
The Tanakh (Hebrew Bible) doesn't dwell at length on the afterlife; and nor does Judaism spend a lot of time speculating on its details. However, that is not meant to diminish from its importance. Rather, the Torah implies that we are to use the bulk of our energies in keeping God's ways in this world, with our feet firmly planted on Earth, while nonetheless not losing awareness of our beliefs.
Our ancient sages stated the importance of being aware of the next world: "This world is a mere entrance-hall before the afterlife" (Mishna, Avot ch.4).


All outstanding accounts are settled after this life. Some cases illustrate this point, since this entire world wouldn't be enough to reward a Moses or punish a Hitler. And while we're alive, knowledge of the future world serves as one of the motivations to keeping God's will.


The Tanakh does not delve into detail of the rewards of the righteous because religions could compete with more and more poetic promises. Also because belief in the afterlife was shared by all ancient societies and needed little reiteration. Besides, it would be like describing the colors of a sunrise to someone who was blind from birth.
It is, however, referred to briefly in Torah verses such as Genesis 15:15, which states that "You (Abraham) will come to your fathers in peace and will be buried in good old age." Coming to his fathers does not mean simply to be buried with them, since Abraham was not buried with his ancestors. Such verses are stated many times.
The prophets are more explicit with such references (see Isaiah 26:19 and 66:24, Daniel 12:13, Zechariah 3:7, 1 Kings 8:30, 2 Kings ch.2, Ecclesiastes 12:7). The afterlife is spoken of at length in the Talmud. More than 20 pages of Talmud (Sanhedrin 90-110, Rosh Hashanah 16-18, and other passages) are given to this subject.

See also:

The key beliefs of Judaism

How do you know there are a heaven and hell?

How many solar panels to generate 1500kw?

Well it depends on the power efficient of each solar panel and how much light they get.

If you got panels that, in normal sunlight put out 100 watts; then for 1,500,000 watts you would need: 15 thousand panels.

Now lets say you use two mirrors on each panel; then you would have about three times the light/power in normal light, so 1,500,000 divided by 300: so you would need 5000 panels and 10,000 mirrors.

Who of the seven Mercury astronauts flew to the moon?

None of the seven Mercury astronauts flew to the moon. The Mercury program focused on sending astronauts into space for short periods of time and did not involve missions to the moon. The Apollo program, which followed the Mercury program, was responsible for sending astronauts to the moon.

Why are they called the northern lights?

The Northern Lights are called so because they are predominantly seen in the northern hemisphere, such as in countries like Norway, Finland, and Canada. The scientific term for Northern Lights is "Aurora Borealis."

Is there light on Jupiter?

Jupiter does not produce its own light, but it reflects light from the sun. Due to its distance from the sun, Jupiter appears as a bright object in the night sky when viewed from Earth. It is not a source of light itself.

What does 1 meter in the metric system equal in the customary system?

One meter in the metric system is equivalent to approximately 3.28 feet in the customary system.

What are some non examples of urbanization?

Non-examples of urbanization include rural areas that are primarily agricultural, natural landscapes like forests or mountains, and uninhabited wilderness areas. Essentially, any area that lacks the infrastructure, population density, and development typical of urban settings would be considered a non-example of urbanization.

When did Apollo 13 take off?

Apollo 13 took off on April 11 1970, at 13:13 CST. The explosion in the Service Module took place on April 13.

Do you need 2 magnets to have a magnetic interaction?

In order to have a magnetic interaction u need 2 objects... do the experiment..

1. Get 2 magnets/ buy 2 magnets

2. Put them close together and they will have a strong interaction...

THATS THE PROOF...