answersLogoWhite

0

🧪

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 is the one way in which scientist get information about the evolutionary history of species?

One very important way that information is compared in the evolutionary history of a species is to use DNA. By checking how much is the same between species, we can see if those species are closely related or not. Our own DNA and that of the great apes are only different in about 1-2%.

Which scientist made highly accurate measurements that first disproved the theories of Ptolemy and Copernicus?

The scientist that made highly accurate measurements that first disapproved the theories of Ptolmy and Copernicus was called Brahe.

Is continual use of tens unit safe?

TENS Unit is almost risk-free from harm, there is no side effects or addiction. The low-volt electrical current carried by the electrodes only penetrates the skin to the level of the nerve fibers, typically only one to two inches.

Does the Bohr model work for every atom?

The Bohr model does not work at all for atoms having more than one electron because it does not account for interactions between the electrons.

What was sir ernest Rutherford and Niels Bohr's most famous discovery?

Rutherford discovered that the atom has a nucleus, bohr's discovery is found on the Wikipedia Link further down this page.

Few question and answers on Bohr's atomic model

The basic assumption in Bohr's model of an atom is that
The energy of electron is quantised
In Bohr's model of the hydrogen atom
the radius of the nth orbit is propotional to n² the angular momentum of the electron in an orbit is an integral multiple of h/2λ the magnitude of potential energy of the electron in any orbit is greater than its K.E.

What scientist did not have experimental evidence to support his theory of the atom?

John Dalton did not have experimental evidence to support his theory of the atom when he proposed it in the early 19th century. His atomic theory was based on observational patterns rather than direct experimental data.

Do you think scientists will generate power from the tides?

Well, yes! They have been doing it for centuries. For example, in Boston there was a mill dam built along what is now Causeway Street and used for turning paddlewheels. The tide came in and the wheels turned in one direction as the water poured into the lagoon; the tide went out and the wheels turned the other way as the lagoon emptied.

What are the circumstances of Hamada's life?

born in April 1933 in Kagoshima Prefecture, Japan. He graduated from the prestigious Tokyo University with a degree in economics, married, and had three children. In 1957 Hamada went to work for Ricoh Company

How do scientist organize life form?

Scientist organize life forms by how they look and what they are.

What is Rene Descartes Wax Figure argument?

The wax thought experiment is intended to illustrate how things maintain their initial identity though they do change form (ex. the essence of wax stays the same, though it changes state from solid to liquid as it burns).

Galileo s discovery of the satellites of Jupiter was important because it indicated that?

It indicated that Jupiter is the fourth brightest object in the sky (after the Sun, the Moon and Venus).

Scientist involve in electricity?

Thomas Edison is credited with building the first electric light bulb. Benjamin Franklin is also famous for his experiments involving electricity.

What are facts about a vulcanologist?

they work anywhere where a volcano is also they use many tools like a rock hammer. they can save lives when they predict a volcanoe erupts hope this helps

What units of measurements do scientists use?

If they are sensible, they will use those units defined and agreed by the International Standards Organization (ISO), as these will be universally understood and normally are required to be used in scientific publications.

What of Kepler and or Newton and law best describes Aristotelian violent motions?

The laws of motion are described by Newton's Three Laws. These laws don't coincide fully with previous beliefs about motion.

What is the comparison between Rene Descartes' and John Locke's theory of substance?

Descartes had a dualist substance theory and believed that there were two substances, the mind and the body. Locke also believed that there were spiritual substances and physical substances, but his theory of substance relied on the substratum, a characterless thing that contains the characteristics we observe. Since we cannot observe substance, Locke believed we could not know anything about it.

Why did René Descartes believe in god?

One of his reasons for believing in god is that he knows (or thinks) that God is perfect. Since perfection includes existence, he therefore assumes that God must exist.

Answer:

Descartes made a series of increasingly unsupportable suppositions to back up his beleief in God:

1. I exist (A supportable statement for an individual - Cogito ergo sum)

2. I have in my mind the notion of a perfect being (The idea that anyone can develop an idea of a perfect being is not provable. The Aztec may have thoght their bloodthirsty gods perfect as well)

3. An imperfect being, like myself, cannot think up the notion of a perfect being (There is no proof although it is believable that humans are not perfect and it is debatable if the idea he has of a perfect being is indeed perfect)

4. Therefore the notion of a perfect being must have originated from the perfect being himself (This is a flight of fancy)

5. A perfect being would not be perfect if it did not exist (Buddhists, for example see perfection in the loss of being)

6. Therefore a perfect being must exist (This does not follow from any of the above statements)

Who contributed to the evidence of electromagnetic waves and their link to light?

James Clerk Maxwell derived the existence of electromagnetic waves. Due to its speed (as calculated from his equations), which is the speed of light, he concluded that light is probably also an electromagnetic wave. This was confirmed later.

How has Rene Descartes' scientific discoveries change the world today?

René Descartes contributed to varied disciplines including philosophy, mathematics and science. He investigated and did remarkable work in optics, meteorology and geometry in efforts to deconstruct the universe to its mathematical foundations. Of all the discoveries he made, perhaps most important was creating the scientific method and deductive reasoning.

Why has C elegans proven to be a useful model for understanding apoptosis?

undergoes a fixed and easy-to-visualize number of apoptotic events during its normal development.