X-radiation (or X-rays) is a form of electromagnetic radiation (and X in X-ray stands for Xero, which stands for Xerographic). X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3Ã1016 Hz to 3Ã1019 Hz) and energies in the range 100 eV to 100 keV. The wavelengths are shorter than those of UV rays and longer than of gamma rays. In many languages, X-radiation is called RÃ¶ntgen radiation, after Wilhelm RÃ¶ntgen, who is usually credited as its discoverer, and who had named it X-radiation to signify an unknown type of radiation. Spelling of X-ray(s) in the English language includes the variants x-ray(s) and X ray(s).
Physicists at the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory, once home to the longest particle accelerator for nearly fifty years, have used the world’s most powerful X-ray laser to distinguish at an atomic level the mechanisms of reaction of a catalyst in action. This unprecedented view will help scientists develop cleaner and [...]
Launched just last year, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) is almost fully tweaked and ready to supply mankind with valuable scientific insight. Recently, NASA showcased a few finds made with the NuSTAR including this stunning imagery of a far away galaxy that showcases two unusually bright black holes. NuSTAR is the first orbiting telescope with [...]
After Curiosity had a bite of Martian turf at the site of Rocknest a few days earlier, soil analysis results have finally come in. According to scientists at NASA, the Martian sand in the rover’s vicinity is very much akin to volcanic soils found on Earth such as those of Hawaii. Though Mars is far from being [...]
Recent measurements conducted by NASA’s Chandra X-ray Observatory, and observed by other X-ray instruments from around world and in space, suggest that our galaxy is surrounded by hot spherical gas formation that stretches across 300,000 light years and has an equivalent mass of some 60 billion suns or roughly all the stars in the Milky Way. If [...]
Just an X-ray of a stingray, nothing more to add here.
Stars suffer, too, you know. Astronomers have recently discovered a distinctive X-ray signal coming from a star on the verge of being engulfed by a black hole in a distant galaxy. “This tell-tale signal, called a quasi-periodic oscillation or QPO, is a characteristic feature of the accretion disks that often surround the most compact objects [...]
Curious enough, one hundred years after renowned physicist Max von Lauefirst used X-ray diffraction to unravel the intricate atomic architecture of molecules, a team of international scientists have analyzed tiny protein crystals at an unprecedent scale of resolution, premiering in the process the world’s first hard X-ray free-electron laser. Called the Linac Coherent Light Source at Stanford, the X-ray [...]
Researchers at SLAC National Accelerator Laboratory have used the world’s most powerful X-ray laser fired upon a neon gas capsule and thus emit an avalanche of short wavelength X-rays,creating the first atom laser. The same laser was used to heat a lump of matter at over 2 million degrees Fahrenheit – hotter than the sun’s [...]
Using a new X-raying technique and device, based on synchrotron radiation, scientists have been able to map the pigmentation of creatures dead for million of years just by reading the traces metals in fossils left. “Every once in a while we are lucky enough to discover something new, something that nobody has ever seen before,” [...]
The first experiments with this laser (Linac Coherent Light Source) have been given the green light at the Department of Energy’s SLAC National Accelerator Laboratory. The illuminating of objects and processing speed will take place at an unprecedented scale, promising groundbreaking research in physics, chemistry, biology and numerous other fields. “No one has ever had [...]
An exquisite fragrance has always been considered to be a status symbol especially because of the difficulties encountered in order to create a good one. However, this is far from being a characteristic of our times; in ancient Egypt, this was taken to an entirely higher level: wearing a certain perfume was the sign of [...]
(no science in this picture, it’s just fun) What are X-rays? You may think you know the answer, but things are a bit more complicated than they seem. In fact, they are a form of electromagnetic radiation, similar to microwaves or radio waves. But X-rays have way more energy than these types of radiation, [...]