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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

What happen when you polish granite?

When you polish granite, you remove the outer layer of the stone to reveal a smooth, glossy finish. This process enhances the natural beauty of the stone and helps to bring out the unique colors and patterns in the granite. Additionally, polishing granite can make it more resistant to stains and scratches.

What is the total displacement of a person that travels 80 meters due South than travels another 50 meters due north?

The total displacement is 30 meters South. Displacement is the difference between the initial and final positions of an object, irrespective of the path taken. In this case, the person returns partially to the initial position after moving North by 50 meters.

Is it possible to mistake oyster mushrooms for poisonous mushrooms?

Definately. Please, please do not attempt to consume any type of fungus unless you are an expert in identifying edible mushrooms or an expert is with you to confirm a mushroom's edibility. One wrong mouthful can be deadly.

What type of bond does sp have?

sp or sp1 bonds are triple bonds. For carbon to carbon bonds, the easiest way to work it out is take the number after the "sp" and subtract it from 4 ( the normal number of bonds to carbon). Therefore "sp1 or sp"

4-1=3, so triple bond

How can you prevent rice black bugs?

There's no 100% way to prevent bug eggs from being part of the food supply and, given the right temperatures the eggs tend to hatch. Putting the bag of uncooked rice into the freezer for a day or two should prevent the eggs from being able to hatch in the future.

What bees are black and white?

It is probably the bald-faced hornet. They have white faces, with blank and white stripes and they're about 3/4 inch long.

What is the Longest duration in space?

The longest duration spent in space by an individual is 437 days, achieved by Russian cosmonaut Valery Polyakov aboard the Mir space station from January 1994 to March 1995.

What is the boiling point of water called?

Evaporation. The temperature is 100 oC or 212 oF

How many windows does the gherkin have?

I estimate 9129:

12 * 3 * 6 = 216 per floor

About 42 floors-worth: 42 * 216 = 9072

Plus 56 for the legs round the bottom

Plus 1 for the lid

What does 'the dark phase' mean?

A dark phase may be many things:

  • a stage of coloration, as in an animal with a light phase at certain times and a dark phase at other times
  • a stage of photosynthesis which does not require light
  • a stage in the lunar cycle when the face of the moon appears dark
  • a microscopic method which allows viewing of unstained specimens
  • the stage in a small business where the entrepreneurs begin to question everything, including themselves.

The moon is how much smaller than the Earth?

The Moon has approximately 1/4 Earth's diameter, 1/50 Earth's volume, and 1/80 Earth's mass.

What is it called when the Earth travels all the way around the Sun?

When the Earth travels all the way around the Sun, it is called a "revolution." This journey takes approximately 365.25 days to complete, which is why we have a year with 365 days and sometimes an extra day in a leap year.

How did everything get here?

The exact origin of everything is still a topic of debate among scientists and philosophers. The most widely accepted scientific theory is the Big Bang, which suggests that the universe expanded from a singular point around 13.8 billion years ago. However, the question of why there is something rather than nothing remains a profound mystery.

What is the best way to describe human nature?

Human nature is complex and can vary greatly among individuals. Generally, it is characterized by a combination of qualities such as the capacity for empathy, rational thinking, collaboration, and self-preservation. Humans are also driven by emotions, desires, and the pursuit of happiness and fulfillment.

What is the difference between scientific and nonscientific questions?

Scientific questions are based on observable evidence and can be tested through research and experimentation, leading to objective conclusions. Nonscientific questions are often subjective, speculative, or based on personal beliefs, and do not follow the systematic methods of the scientific process.

What will happen on April 13 2032?

Supposedly: a large astaroid (like the one from the big bang) will come and wipe out most of the living creatures of earth.
Actually: a large asteroid will pass very close to earth and if it hits a point in earths gravity called a keyhole, it will be slung shot around and put on a course that in 7 years time will cause it to come back and hit the earth wiping out life as we know it. Interestingly enough this time table is similar to the one in revelations.

Who made the first kite in 1400?

There are pictoral and literary references to kites before 100 BC. The Chinese, Indian, Egyptian, American Indian, Australian Aborigine and some European countries have all made reference to flying objects on the wind by holding a string. Some archaeologists think the first sail boat may have been a cloth or hide of some kind supported by sticks or tethers to the boat before written history. I haven't yet found a reliable reference to who made the first kite on January 1 1400, though. I would assume that kite flying was a fairly popular celebration of the Gregorian New Year. The kite was first invented and popularized approximately 2,800 years ago in Weifang, China, where materials ideal for kite building were readily available: silk fabric for sail material, fine, high-tensile-strength silk for flying line, and resilient bamboo for a strong, lightweight framework. Alternatively, kite author Clive Hart and kite expert Tal Streeter hold that kites existed far before that time. The kite was said to be the invention of the famous 5th century BCE Chinese philosophers Mozi and Lu Ban. By at least 549 CE paper kites were being flown, as it was recorded in that year a paper kite was used as a message for a rescue mission.

What accelerated the exploration of science during the renaissance?

The Renaissance saw a revival of interest in ancient Greek and Roman knowledge, leading to the rediscovery of scientific texts. Additionally, advancements in technology, like the printing press and improved navigational instruments, enabled the widespread dissemination of scientific ideas. Patronage from wealthy individuals and institutions also supported scientific exploration and research during this time.

What two things does vaporization include?

Vaporization includes the conversion of a substance from a liquid to a gas by adding energy (heat) to break intermolecular bonds. It involves the individual molecules of the substance gaining enough energy to overcome the attractive forces holding them together as a liquid.

What did valentina terishkova discover?

She was the first woman in space, took pictures of the horizon : Although Tereshkova experienced nausea and physical discomfort for much of the flight,[4] she orbited the earth 48 times and spent almost three days in space. With a single flight, she logged more flight time than the combined times of all American astronauts who had flown before that date. Tereshkova also maintained a flight log and took photographs of the horizon, which were later used to identify aerosol layers within the atmosphere. That was from Wikipedia.

The trade winds of the northern and southern hemispheres meet at the equator in a narrow zone of weak variable winds called?

The trade winds of the northern and southern hemispheres meet at the equator in a narrow zone of weak variable winds called the doldrums. In this region, the air is relatively calm due to the convergence of the trade winds, resulting in light and unpredictable breezes. The doldrums are known for their fluctuating weather patterns and lack of consistent wind.

How much bigger than Antares is the sun?

Antares is a red super giant. It is approximately 800 times larger than our Sun. If our Sun was replaced by Antares, it would reach out beyond the orbit of Mars.

Around 512 million Suns could fit inside Antares.

See link for a pictorial representation

Where does lunatic come from?

The word "lunatic" comes from the latin word LUNAR which means moon. so lunatic means moon- crazy. but most people just mean crazy

What is a forward observation post?

A forward observation post is a strategic location where military personnel observe, gather information, and provide critical tactical support to troops in combat situations. They are typically positioned close to the front lines to monitor enemy movements, assess battlefield conditions, and facilitate communication between units.