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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 does matariki appear in the southern hemisphere and not in the northern hemisphere?

It appears in both hemispheres but at different times of the year and has many names. Matariki is an open star cluster and also known as:

Pleiades

Seven Sisters

Messier object 45

Subaru

It has many many other names from peoples all around the world. Matariki is the maori name given in Aotearoa New Zealand.

Why are living things classified into groups?

Living things are classified into groups to help scientists organize and understand the diversity of life on Earth. By grouping organisms based on shared characteristics, scientists can easily compare and study different species. Classification also allows us to make predictions about evolutionary relationships and better understand how living things are interconnected.

What is the temperature on Mars at day?

The temperature on Mars during the day can vary significantly, ranging from about -195°F (-125°C) near the poles to 70°F (20°C) near the equator. Overall, the average daytime temperature on Mars is around -80°F (-62°C).

What is a star exsplosion which increases the stars lumionosity to 1000 times that of a nova?

A supernova is an explosive event that can increase a star's luminosity to as much as 1000 times that of a nova. Supernovae occur when a massive star reaches the end of its life and undergoes a catastrophic collapse, releasing an immense amount of energy in the process.

Are there different types of amethyst?

Amethyst has no variety. It is a purple coloured gemstone from the species quartz. ( a variety of quartz) however it comes in shades of purple, pink etc. When the word amethyst is used the only color that comes to one's mind is purple. Its color is due the presence of iron mineral in it. The color may range from a faint mauve to a glorious purple. The clear dark purple color is the one that is in most demand. It is also found in blue purple range.

Many a times amethyst is found in combination with the yellow color citrine (other variety of quartz family) and is called as Ametrine. Some green color amethysts have also been found in the Zimbabwe and Arizona and is said to get the color is due to the heat of the sun.

How many Doctor Whos are there?

As of my last information, there have been 14 official actors who have portrayed the Doctor in the "Doctor Who" TV series. Each actor brings their own interpretation to the role of the iconic Time Lord.

In what ocean zone can a stingray be found?

Stingrays can typically be found in the ocean's euphotic zone, which is the top layer of the ocean where sunlight penetrates and allows for photosynthesis to occur. They are often spotted in shallow coastal waters and coral reefs where they feed on small fish, crustaceans, and mollusks.

What is the difference between a planet a star the moon and the sun?

  • A star is a luminous celestial body, made up of plasma having a spherical shape.
  • A planet is either a rocky or gaseous spherical body orbiting the Sun, or a star.
  • A moon is a natural satellite of a planet.

If a space probe were sent into orbit around sun that brought it as close as 0.5 AU to sun and as far as 5.5 AU what would is orbital period be?

The orbital period of the space probe can be calculated using Kepler's third law of planetary motion, which states that the square of the orbital period is proportional to the cube of the semi-major axis of the orbit. Given that 0.5 AU represents the perihelion and 5.5 AU represents the aphelion, the semi-major axis would be the average of these two distances (3 AU). Therefore, the orbital period of the space probe would be approximately 5.2 Earth years.

Why was the canadarm made?

The canadarm is made for fixing stuff, like satellites or send them into their proper orbit . It is also used for building other spaces structures in space and to reach out to from the spacecraft to send out and bring back payloads, such as satellites.

Do you need sunglasses or laser glasses to look at a 10mw laser?

No, you do not require special glasses to look at a 10mW laser; however, staring directly into the beam can be harmful. It is always recommended to exercise caution and avoid direct exposure to laser beams, especially at close range.

What can you do to help save the Philippine eagle?

You might be able to help to save the Philippine eagle by bringing its plight to the attention of other people. You could also write letters to the government encouraging the protection of these animals and help to educate people about the bird.

Who has the most advanced space technology?

As of now, the United States has the most advanced space technology, with NASA leading in areas such as robotic exploration, satellite technology, and human spaceflight capabilities. Other countries like Russia, China, and private organizations like SpaceX also have advanced space technologies in various areas.

Who was the first person to discover the Northern Lights?

As the northern lights are a commonly occurring phenomena, it's likely the very first Inuit people were the discoverers of the Northern Lights. This could have been anywhere around the 8th-11th century.

It got a lot of attention in the late 18th century when Benjamin Franklin hypothesised as to what caused them

What colour is the Milky Way Galaxy?

The Milky Way Galaxy does not have a specific color since it is a collection of billions of stars, gas, and dust that emit light at different wavelengths. However, if we were able to see it from afar, it would appear as a faint white or yellowish band across the night sky due to the combined light of its stars.

What is the highest mountain in Czech republic?

The highest mountain in the Czech Republic is Snezka, which stands at 1,602 meters (5,256 feet) tall. It is located in the Krkonose Mountains in the northern part of the country, near the border with Poland.

What is a condensation polymer of beta D-glucose?

Cellulose is a condensation polymer of beta D-glucose. It is made up of long chains of glucose units linked together through condensation reactions involving the elimination of water molecules. Cellulose is a major component of plant cell walls and the most abundant biopolymer on Earth.

What is the name of the latest satellite sent to Mars?

The latest satellite sent to Mars is called the Hope Probe, which was launched by the United Arab Emirates in July 2020. It is part of the Emirates Mars Mission, also known as the Hope Mars Mission, and is designed to study the Martian atmosphere and climate.

What would a Realist most likely agree with?

The struggles of common people are the most powerful artistic subjects.

Do astound and astonish mean the same thing?

Yes, both "astound" and "astonish" mean to surprise or amaze someone greatly. They can be used interchangeably in most contexts.

What natural phenomena has science so far failed to control to any significant extent?

Very few natural phenomena can be controlled. Both weather and geologic activity (earthquakes, tsunamis, volcanoes) contribute to natural disasters, and all we can do is adapt our preparation for them and our responses to them.

One attempt to control weather, by cloud seeding, has had some limited success but is generally both too expensive to use and too erratic in its results.

How a negative ion forms?

An atom has equal number of protons and electrons so equal number of positive and negative charges, when an atom accepts the electrons (negative charge) it becomes negatively charged an anion.

What is the difference between refract and reflect?

Reflection is where the light hits the surface and `bounces` back off the surface, while refraction is where the light enters the medium and changes direction according to the refractive index of the medium. The higher the refractive index, the more the light is refracted.

When is the next Wednesday 4th June?

The next time June 4th falls on a Wednesday is in 2025.