Democritus Democritus ( 460 a.c.– 370 a.c.) was an Ancient Greek philosopher born in Abdera‚ Thrace‚ Greece. He was an influential pre-Socratic philosopher and pupil of Leucippus‚ who formulated an atomic theory for the universe. His early deductions about the composition of the basic component of nature led him to believe in unseen and uncuttable particles ‚ called atomos. This Greek philosopher wondered how he could be sitting in one part of his
Premium Electron Atom Electric charge
Isotopes‚ sub-atomic particles and relative atomic mass Sub-atomic particles A subatomic particle is a particle smaller than an atom: it may be elementary or composite. In 1905‚ Albert Einstein demonstrated the physical reality of the photons‚ hypothesized by Max Planck in 1900‚ in order to solve the problem of black body radiation in thermodynamics. In 1874‚ G. Johnstone Stoney postulated a minimum unit of electrical charge‚ for which he suggested the name electron in 1891. In 1897‚ J. J. Thomson confirmed
Premium Isotope Electron Atom
WAS THE ATOMIC BOMBINGS OF HIROSHIMA AND NAGASAKI JUSTIFIED? A bomb which was equal to 13‚000 tonnes of highly-explosive bombs‚ used to make the Japanese surrender‚ but also killing many lives‚ cannot be justified. When the highly-explosive bombs were dropped in Dresden‚ everyone had thought of this as very affective. But imagine how bad the atomic bomb would be‚ which could destroy a city only just by its radiation‚ let alone the actual explosion. President Truman of America made a decision of
Premium Atomic bombings of Hiroshima and Nagasaki World War II Nuclear weapon
Case study: The Terrorist and the Ticking Bomb: Ethical Leadership in Supreme Emergencies The Terrorist and the Ticking Bomb: Ethical Leadership in Supreme Emergencies This week’s case study; the terrorist and the ticking bomb: ethical leadership in supreme emergencies brings out some very complex ethical considerations. More specifically the concept of the “supreme emergency” referred to generally as “situations where‚ many argue‚ normal rules should be set aside
Premium Argument George W. Bush Leadership
He also points out that the people are not being herd. He sings about the fact we can bomb the world yet we cannot figure out how to be at peace. It’s profound in the fact that it’s a simple and true statement that should no longer be ignored but has been for decades. The video images are vividly gripping statements on their own‚ captured
Premium John Lennon
Were the atomic bombings in Hiroshima and Nagasaki necessary to save allied lives and to end Japan’s threat to world peace? Did the resulting loss of life cost more than a deadly invasion of the Japanese mainland? In August 1945‚ the first dropping of atomic bombs in civilian areas of Japan killed hundreds of thousands of innocent people. Immediately following those bombings‚ Japan surrendered to the United States. The following essay summarizes the defense of the atomic bomb and its use‚ the arguments
Premium World War II Atomic bombings of Hiroshima and Nagasaki Nuclear weapon
multiple scientists that contributed to the creation of the first Atomic Theory: Democritus‚ Antoine Lavoisier‚ Joseph Proust‚ and John Dalton. Dalton took the information that he had taken from the three scientists prior to him and put everything into one theory. The Atomic Theory is the most well-known and accurate theory we know right now. Later on in history‚ more scientists came to contribute to the understanding of the Atomic Structure. These scientists included: Sir J.J. Thomson‚ Robert Millikan
Premium Atom Electron Neutron
The Progress of the Atomic structure Different theories about the atomic structure were introduced over time. These theories changed as a result of development of different experiments. Leucippus was the first to introduce the theory of atomism‚ however he didn’t write about his theories in detail. However‚ Democritus‚ his student wrote about the theory of atoms in detail. He theorised that everything was composed of atoms and that atoms are solid and indestructible. He also had a theory that
Premium Atom Neutron Electric charge
The invention of the atomic bomb certainly brought extreme fear into Canadians’ lives after revealing its astonishing power through the massive destructions done at Hiroshima and Nagasaki. Although most people did not speak of this fear but it can be clearly seen throughout the cold war when the arms race between the two super powers at the time‚ the United States and the Soviet Union‚ split the world into two halves. On one side‚ there was the communist countries allied with the Soviet Union‚ and
Premium Cold War World War II Nuclear weapon
Nuclear Bombs August 6th‚ 1945‚ the US drops the first nuclear bomb in combat over the city of Hiroshima‚ in Japan. This date is a huge part in our history because no weapon of such mass destruction has ever been used in combat like this. Three days later another nuclear bomb is dropped over Nagasaki‚ as soon as the bomb detonated around 80‚000 people died almost instantly showing the sheer power the bomb. A nuclear bomb has never been used in combat since then‚ but nuclear development has created
Premium Nuclear weapon World War II Atomic bombings of Hiroshima and Nagasaki