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Scientists

This category is for questions about the people who apply the scientific method to solve problems, introduce new concepts, and strive to explain the natural world.

9,527 Questions

What scientist made a billboard pool ball model?

Ernest Rutherford, a pioneering physicist, is known for creating the billiard ball model to describe the structure of the atom. This model featured a dense, positively-charged nucleus at the center with negatively-charged electrons orbiting around it, much like how billiard balls move around a pool table.

What variable does the scientist change in an experiment?

The variable that the scientist changes in an experiment is called the independent variable. This is the factor that the scientist manipulates or controls to observe its effects on the dependent variable, which is the factor being measured or observed.

Who was John Dalton's student?

John Dalton's most notable student was Jöns Jacob Berzelius. Berzelius was a Swedish chemist who made significant contributions to the field of chemistry, particularly in the development of the modern chemical symbols and atomic theory.

What is named after EMC2 scientist?

The SI unit of energy, the erg, is named after physicist Albert Einstein's equation E=mc^2, where E represents energy, m represents mass, and c represents the speed of light.

What job Nikola Tesla had?

He was the most intelligent inventor. His system of delivering power to homes and businesses using AC eclipsed the DC power advocated by his former employer Thomas Edison. The world uses this system. By the time Tesla died in 1943, his inventions and discoveries have made much of our current technology possible. Every wireless device has the basics of an electrical invention of Nikola.

Who is the scientist who proposed that light is a wave?

Thomas Young is the scientist who proposed in 1801 that light is a wave, using his double-slit experiment to support this theory.

What did Nikola Tesla PERENTS do?

Nikola Tesla's father, Milutin Tesla, was a Serbian Orthodox Priest and a writer. His mother, Georgina Tesla, was known for being skilled in making homecrafts and inventions. Tesla credited his mother's influence as sparking his interest in inventing and creating.

Do scientist use the same units of measurment?

Scientists generally use the International System of Units (SI) as their standard for measurement. This system includes units such as meters for length, kilograms for mass, and seconds for time. However, in specialized fields or historical contexts, different units of measurement may be used.

What other names is Nikola Tesla called by?

He was the only person who I have read about, that no one came with a nickname for him.

Scientists' skepticism should be balanced with an ability?

Scientists' skepticism should be balanced with an ability to remain open-minded. While skepticism is essential for questioning and verifying information, being open-minded allows scientists to consider new ideas and perspectives that may lead to breakthroughs in research and innovation. This balance promotes critical thinking while still fostering creativity in scientific inquiry.

When a metallic block with hole is heated why does not the material around the hole expand into the hole and make it smaller?

The hole expands along with the material as both are part of the same solid block. The overall dimensions of the block increase uniformly due to thermal expansion without altering the shape or size of the hole within it.

What did Adrien Albert discover?

Adrien Albert discovered the chemical compound dimethyl sulfate in 1948, which is an important reagent used in organic chemistry for the methylation of nucleophilic species. This discovery has had significant impacts on various fields including pharmaceuticals, agriculture, and materials science.

Which scientist discovered television?

The invention of television is attributed to various inventors over time, including Philo Farnsworth, Vladimir Zworykin, and John Logie Baird. Philo Farnsworth is often credited with the first fully functional television system using his patented technology of electronic scanning.

What is Alexei Filippenko's IQ?

Alexei Filippenko's IQ is not publicly known, but he is very intelligent.

Why don't scientists accept the steady state theory?

Scientists do not widely accept the steady state theory because it does not align with observed evidence such as the cosmic microwave background radiation and the Hubble expansion of the universe. These observations strongly support the Big Bang theory, which is the prevailing cosmological model.

How do scientist mix things?

Scientists mix things by carefully measuring out the substances they want to combine, following specific procedures to ensure accuracy and consistency. They often use tools like beakers, flasks, and pipettes to mix liquids, and use spatulas or stirrers to mix powders or solid substances. The goal is to create a homogeneous mixture where all components are evenly distributed.

How can the quality of life benefit from the work of scientists Give some examples please Be very greatful for your answers?

The quality of life can benefit from the work of scientists through the use of machinery and computers to do repetitive jobs, which would otherwise turn humans into machines.

Do you realize what life was like just 100 years ago without antibiotics and vaccines. Life expectancy was around 45-50 years. Many women never went through menopause as they did not live long enough. Around 2 out of 5 children never lived beyond the age of three. We would not have the ability to feed all of ourselves.

Which type of scientist researches the very basic of energy and matter an the fundamental forces of nature?

A theoretical physicist studies the very basic principles of energy, matter, and the fundamental forces of nature. Their work involves developing and testing theories to explain the behavior of particles and the interactions between them at the most fundamental level.

What scientist developed the lever?

The concept of the lever was developed by the ancient Greek scientist Archimedes. He is credited with formulating the principles of levers in his work on mechanics.

Who are the scientist who discover the elements?

Go to the display of the periodic table given by the link, below. Then, right-click on each element of interest to you. Usually the articles provide some information about who discovered the elements and how this happened.

Did nikola tesla invent a death ray?

Nikola Tesla theorized about a directed energy weapon that he called a "teleforce" or "death ray," but there is no evidence that he successfully developed or tested such a device. It remains a concept rather than a realized invention.

What scientist discovered that you can use nuclear medicine to detect a tumor?

Marie Curie and her husband Pierre Curie were pioneers in the field of nuclear medicine, their research laid the foundation for using radioactive isotopes to detect tumors. Nuclear medicine imaging techniques such as positron emission tomography (PET) and single photon emission computed tomography (SPECT) are widely used for tumor detection and diagnosis.

Did Nikola Tesla know Thomas Henry Moray?

Thomas Henry Moray was an inventor from Salt Lake City, Utah. Moray was a follower of Nikola Tesla, as a youth he greatly admired Tesla. Moray, as Nikola Tesla before him, was unsuccessful in introducing his devices working on this principle. Some report that his secret was forgotten. As mentioned above Moray tried for several patents to no avail. He was pro free electricity like Tesla. He didn't meet him personally.

What scientists would study forces of motion in the universe?

Astrophysicists and astronomers would study forces of motion in the universe. These scientists use principles of physics to understand the movement of objects in space, such as planets, stars, and galaxies. They analyze gravitational forces, orbital mechanics, and other factors that influence motion in the vastness of the universe.