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What was the experimental evidence that Thomson had discovered the existence of a subatomic particle when working with cathode rays?
Thomson discovered the electron and proved that it existed without ever being able to see or isolate one. Electrons were the first subatomic particles to be discovered, the first particle of matter identified that was smaller than an atom. This discovery also finally provided some physical proof of, and description of, the basic unit that carried electricity. Thomson attached thin metal plates inside his cathode ray tube to a battery and showed that an electrical field could also deflect cathode rays.
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Neutron was discovered by?
The neutron was discovered by Sir James Chadwick in 1932. Chadwick conducted experiments that provided evidence for the existence of a neutral subatomic particle within the atomic nucleus, which he named the neutron.
Who did not have experimental evidence to support there theory of a atom?
Ancient Greek philosophers such as Democritus and Leucippus did not have experimental evidence to support their theory of the atom. Their idea of the atom was purely philosophical and lacked experimental verification until much later.
What did J. J. Thomsons experiments provided evidence about an atom?
J. J. Thomson's experiments provided evidence for the existence of electrons as subatomic particles within the atom. This led to the plum pudding model of the atom, where electrons were embedded in a positively charged "pudding." These experiments laid the foundation for our understanding of atomic structure.
How has the idea of the atom developed and changed over time?
At first we didn't now that the atom existed. It was Einstein who discovered that pollen grains were moving in a glass of water. Why? It was because as he later confirmed that the water particles were pushing it in an unbalanced way. Other scientists later discovered that there are protons, neutrons and electrons in an atom.
Which scientist offered proof that atoms exist?
The existence of atoms was proposed by the ancient Greek philosopher Democritus in the 5th century BCE. However, John Dalton provided experimental evidence for the existence of atoms in the early 19th century through his atomic theory, which explained chemical reactions in terms of the combination of atoms.
Which particle did j.j. Thomson discover?
The first discovery of a subatomic particle would come in 1897, when J.J. Thompson first discovered evidence for the existence of the electron.
What particles did jj Thomson discover?
J.J. Thomson discovered the electron in 1897 while conducting experiments with cathode rays. This discovery was groundbreaking as it provided evidence for the existence of subatomic particles.
Neutron was discovered by?
The neutron was discovered by Sir James Chadwick in 1932. Chadwick conducted experiments that provided evidence for the existence of a neutral subatomic particle within the atomic nucleus, which he named the neutron.
What did Thomsons experiments prove?
Thomson's experiments with cathode rays proved the existence of negatively charged particles, which he called electrons. This discovery provided evidence for the existence of subatomic particles and laid the foundation for the development of the modern atomic theory.
What are exposons?
Exposons are hypothetical subatomic particles proposed by physicist Saul-Paul Sirag in the 1970s. The term "exposon" is derived from "exponential boson" and they are thought to play a role in the quantum measurement problem and wave function collapses. However, as of now, there is no experimental evidence to support the existence of exposons.
What is the evidence for the existence of dark matter in the universe?
The evidence for the existence of dark matter in the universe includes the extra mass of Galactic clusters discovered by Fritz Zwicky, and the spinning galaxies which rotate at the same speed as discovered by Vera Rubin.
What evidence is there of the particle theory?
The evidence for the particle theory of matter is supported by the behavior of particles in the kinetic molecular theory, such as the diffusion of gases, Brownian motion, and the interaction of particles in chemical reactions. Additionally, the observation of subatomic particles like protons, neutrons, and electrons further solidifies the particle nature of matter. Experimental data from particle accelerators also provide evidence for the existence of various elementary particles.
What is experimental evidence?
Experimental evidence is data obtained through conducting an experiment. For example, if I measure the boiling point of a substance at 500 degrees Fahrenheit by boiling the substance, 500 degrees is my experimental evidence.
How did Einstein prove the existence of atoms?
Einstein did not prove the existence of atoms. This was done by Ernst Rutherford at McGill university using X-rays shot through a piece of gold foil. He found that X-rays were able to pass through a piece of thin gold foil, but that they were scattered in some instances. By doing this, he elucidated the subatomic structure of the atom as a nucleus surrounded by an electron cloud.
Are coincidences evidence of God's existence?
Coincidences are evidences of Karma. Karma is a system created by God. Karma means deed. Your past deeds determine your present and your present deeds determine your future. Some people, particularly Brahmans believe that the reason for some of their sufferings is their sins they have done in the previous life (previous birth). They call it Past Life Karma. This is unacceptable and untrue. Punishments are given to make them realize their mistakes. No one lived a life before they have born. In fact there is no past life (previous birth) and afterlife. Reincarnation is impossible to human beings. How can they repent without knowing what sins they have done in their past life? People suffer only for the sins they have done in their present life. But accidentally if they happen to face any problem without doing sin then there will be compensation in someway. These works are done by the spirits. Spirits determine the destiny of the human beings from their daily activities, talks and thoughts too. All creatures including human beings are ruled by spirits. God never bothers whether people believe in him or not. God's direct intervention in individuals' affairs is very rare. God doesn't watch each and every human being at the same time and cannot live with each and everyone to guide them. These works are done by the spirits. God had created different kinds of spirits for various purposes. He had made the spirits to watch, guide and determine the destiny of the human beings from their daily activities, talks and thoughts too. Your past determines your present and your present determines your future. God has given freewill to all creatures including human beings. According to this, all human beings have all right to live a life as they wish. But if it happens to be bad and hurts someone, they have to face the consequences. These consequences are created by spirits. It's a natural system. After death no one lives in any form. Heaven and hell are only for spirits, not for human beings. God is a mystery even to the spirits. Spirits are not eternal beings but their lifetime is long. Spirits are separate elements. A human being during his/her lifetime is living with many spirits which have joined one by one since birth. They are knowledge, skills, feelings, emotions, instincts, interests and everything. Further there will be always some spirits with you on behalf of your parents, friends, relatives and Gods you believe. Only these spirits make you remember them in a certain situations. All of these spirits are your consciousnesses and memories. Even thoughts are not your own. For example, when you want to take a decision on a subject, one after another the spirits think and you just listen, choose or reject the ideas which they transmit to your mind through your brain in the form of thoughts. A mind is a group/formation of many spirits which have joined one by one since birth. A mind is just like a computer's mind. After the computer is completely destroyed you will not get its mind. The same is the case with the human beings. A brain is a device used by the spirits to control the body and mind. (A senior spirit or a chief can control other spirits) A human being doesn't have a spiritual body. Soul is an energy needed for the functionality of a body. It is not a spirit or anything else. A body's functionality is based on the auto mechanism. After death all spirits which accompanied a person quit and go to different places searching new bodies. No one lives after death in any form. All human beings are just robots made of flesh and bones and toys of the spirits for their games. I am a living evidence for the existence of God. If you know me, you will understand. I am surrounded by lot of negative forces (spirits). I am scolding them daily. I think most of the people or almost all people are hearing my voices as well as evil spirits’ voices everyday. At present all creatures including human beings are living in a miraculous era of God. This is a temporary miracle of God. I am connected to all creatures including human beings and spirits internally by God since year 1950 but I am not a God. I think that all human beings can see what I see, can hear what I hear and even know my thoughts. But thoughts are complicated matter. It needs an explanation. The people who have born in this era cannot realize this miracle because they have born with it. An old brave and honest gentleman aged 85 can explain about this miracle.
Is there another dimension?
The existence of other dimensions beyond the four we experience (length, width, height, time) is a topic of scientific speculation and theoretical physics. Some theories, such as string theory, suggest the possibility of multiple dimensions, but there is currently no experimental evidence to confirm their existence.
Did Robert millikan discover subatomic particles?
No, Robert Millikan did not discover subatomic particles; rather, he is best known for his work on the oil drop experiment, which measured the elementary charge of the electron. His experiments provided crucial evidence for the quantization of electric charge and helped confirm the existence of electrons as subatomic particles. Although he contributed significantly to the understanding of atomic structure, the discovery of subatomic particles like electrons was attributed to other scientists, such as J.J. Thomson.
