A look at some of the largest objects in the universe
By: Jose Juan Gutierrez
The universe contains within countless objects. Some are big as our own Sun or the planet Jupiter, while others are as little as hydrogen and helium particles composing the nebulas; however, the universe is so vast that the biggest objects in the solar system would...
Compare and contrast: the Milky Way galaxy and the Andromeda galaxy
By: Jose Juan Gutierrez
Galaxies are large collections of stars, gas and dust maintained together by the force of gravity. Galaxies contain anywhere from several millions of stars to more than a trillion, and their sizes range from a thousand to several hundred thousand light years in diameter. There...
Compare and contrast: the Milky Way galaxy and the Andromeda galaxy
By: Andrew Moran
The Milky Way and Andromeda (M31) galaxies made news in May when NASA officials confirmed that the two are headed for a cosmic collision within the next four billion years – an additional two for it to merge and then another two billion for when...
By: Kaitlyn Shepanski
The development of the periodic table is a project that will truly never end. The venture began with a household name of the scientific world, Dmitry Mendeleev. Mendeleev published the first actual periodic table in 1869; he pulled information and built upon earlier scientists’ work...
Lasers and how light and matter interact
By: David Clark - 670733
"Frickin' Sharks with Frickin' Lasers" As a laser engineer, I have to endure what that movie has done to that field at least once a month, and without fail on every plane ride. But many people simply do not understand, from either a theoretical or...
NASA Spitzer space telescope spots watery super-earth 55 Cancri e
By: Jose Juan Gutierrez
NASA’s Spitzer Space Telescope detected light emanating from a super Earth-like planet (55 Cancri e). Planet 55 Cancri e falls into a type of exoplanets designated as super-Earth planets, which are more massive than the Earth. 55 Cancri e is about twice the size...
History of the Geiger counter
By: Srikanth Radhakrishna
Nuclear radiation can cause significant harm to living beings. It cannot be detected by human senses. Instruments are used to detect radioactive emissions. Geiger counter is one such instrument. Also known as Geiger-Müller counter, this particle detector is used extensively to detect nuclear radiation...
History of the Geiger counter
By: Jose Juan Gutierrez
A Geiger counter, also known as Geiger Muller counter, is a detector of nuclear particles that is used for measuring ionizing radiation. A Geiger counter is utilized to detect emitted radiation of gamma rays, X-rays, beta particles and alpha particles. A Geiger counter detects radiation...
By: Dr Pandula Siribaddana
With the ever-growing risk of nuclear disasters and threat of radioactive material being released into the environment, detecting its presence is vital for any intervention or research activity. The Geiger counter is a device developed for this exact purpose and the scientists Hans Geiger and...
By: Patrick Sills
Astronomers and physicists alike have long speculated that other stars must have planets that orbit them just as they do in this solar system. It is quite exciting to realize that such a consensus has turned out to be true. In the past couple of...

 

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