By: Sarah Cagle
In order to understand what positronium is, one first needs to understand a little of the history behind how it was discovered. Discovering and predicting this exotic atom was part of the nuclear research being conducted before and after World War II. The American scientist...
By: Kaitlyn Shepanski
Positronium (Ps) is an unstable system consisting of an electron and its anti-particle. These two are together called an ‘exotic atom’. Being unstable, after an average lifetime of 125 ps (Pico seconds) they start to annihilate each other and produce two gamma ray photons...
By: Jose Juan Gutierrez
Wilhelm Conrad Rontgen, a German physicist, made an unexpected discovery while investigating the effects of cathode rays. He discovered electromagnetic radiation in the wavelength that is known as x-rays. For this remarkable achievement, he was honored with the first Nobel Prize in Physics In 1901...
By: Katriena Knights
Wilhelm Conrad Roentgen (or Röntgen) was a well-known and accomplished physicist, but he is best known for his discovery of X-rays. This discovery changed medical science, giving doctors a way to look at interior structures of the body without resorting to surgery. As with...
Acoustics: The science of sound, ultrasound and vibration
By: Srikanth Radhakrishna
Acoustics is derived from a Greek term which literally means "of or for hearing, ready to hear". This interdisciplinary science deals with the study of mechanical waves in solids, liquids and gases. Acoustics involve the study of vibration, sound, infrasound and ultrasound. Principles of acoustics...
Acoustics: The science of sound, ultrasound and vibration
By: Nigel Holmes
Bang a drum, blow a whistle, or pluck a string: however you make a sound, it spreads out like ripples on a pond. However, there are some differences. Waves in water have an up-and-down motion as they move away from their source. Sound waves are...
Overview of superconductivity
By: Luigi Lyne
What is Superconductivity? I am going to talk about superconductivity. In this article I will be discussing the present uses for superconductivity. I will also outline how superconductivity works and where it has been successfully used to maximise the efficiency of some of the greatest...
By: Elizabeth M Young
Since the 1970s, the idea of tweezers changed drastically for some people. Instead of using a pair of tweezers with a magnifying glass and a light attached to them, scientists have been using an entirely different machine called Optical tweezers. The goal of optical tweezers...
Scientific first: Successful manipulation of antimatter
By: Terrence Aym
A group of groundbreaking, international scientists called the ALPHA team successfully manipulated antimatter and measured it for the first time in history. The team nudged anti-hydrogen atoms using a tool that emitted a microwave stream. Last June 2011, Jeffrey Hangst, of Denmark's Aarhus University and...
By: Terrence Aym
The nature of time is a puzzle that none in physics have been able to solve. But that doesn't stop physicists from moving ahead with their ever more exacting measurement of whatever time is—and they're entering territory that makes the old-fashioned atomic clocks look...

 

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