Author: Khaleel Ashraf

Second Law of Thermodynamics and Entropy

 shares Love This3 Facebook1 Twitter0 WhatsApp4 Google+0 Telegram0 Email0 Gmail0 Facebook Messenger0In everyday life we experience many limitations on energy transfers. A hot bowl of soup becomes cooler, for example, but a cool bowl of soup never spontaneously heats up. The second law of thermodynamics is one of the fundamental theories of nature that explains this (along with many other things). The most intuitive statement of the second law of thermodynamics is that heat tends to diffuse evenly: heat flows from hot to cold. Heat is a quantity of energy (joules, calories, etc.). The quantity of heat energy thus...

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Electricity and Electromagnetism – Part 2

 shares Love This0 Facebook0 Twitter0 WhatsApp0 Google+0 Telegram0 Email0 Gmail0 Facebook Messenger0Electricity and Electromagnetism – Part 2 The beginning of electricity’s modern era can be traced to a small Danish classroom in 1820. There, in front of a room full of physics students, Hans Christian Oersted (1777–1851) discovered that electricity can produce magnetic fields. Oersted was the son of a Danish pharmacist, and he had planned to follow his father’s profession, but he became captivated by electrical studies in 1800. He gained great popularity as a science lecturer and was given a professorship at the University of Copenhagen in...

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Electricity and Electromagnetism

 shares Love This0 Facebook0 Twitter0 WhatsApp0 Google+0 Telegram0 Email0 Gmail0 Facebook Messenger0Electricity and Electromagnetism Can we even imagine a world without electricity? But as unimaginable it may sound to us now, the story of electricity for practical use has been around for only few centuries. Most modern uses of electricity rely on electrons that move. Newton’s first law of motion demands that electrons can’t move unless a force is applied. A method for applying such a force was discovered in 1794, when the Italian physicist Alessandro Volta (1745–1827) invented the battery. Alessandro Giuseppe Antonio Anastasio Volta was born to...

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The First Law Thermodynamics, and the net energy of the Universe

The first law of thermodynamics states energy can’t be newly created nor destroyed; so where did the universe come from? Did the origin of universe require a super natural explanation? New understanding of cosmology however shows, despite our intuitions, the net energy of universe is 0 and the whole universe could indeed come out of the “quantum foam” of nothingness, according to Stephen Hawkins and others. A brief overview of the implications of this dramatic new insight.

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The Nature of Energy Laws of Thermodynamics

The study of energy is called thermodynamics. Unlike Newton’s laws of motion, the laws of thermodynamics did not spring fully formed from one mind. Rather, these ideas emerged gradually from the work of many researchers, and it was only later that they were set down in the form we now know.

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