British officials are still puzzled by the use of this poison, the radioactive isotope Polonium 210.
And the type of nuclear decay each isotope undergoes before it reaches a state.
FORBES: Uranium Stocks Looking Ugly Post-Fukushima As Short-Interest Rises
When exposed to an isotope, the crystals flash for 50 billionths of a second.
And everywhere else in the world has been converting those isotope reactors to do just that.
FORBES: Trying An Educated Guess Over This Iran And The Bomb Thing
The test, called a carbon isotope ratio test, can distinguish naturally produced from artificial testosterone.
For the test run, Mr Lerner used deuterium, a heavy isotope of hydrogen, as the gas.
When the Sun becomes more active, this isotope becomes more abundant along with beryllium, another radioactive element.
FORBES: Climate Scientists Deepening Skepticism of Democracy
Cesium remains the most widely dispersed isotope while concerns remain over long-term contamination from strontium and plutonium.
"Previous workers have applied the same oxygen isotope technique and reported relatively cool temperatures, " Dr Pearson said.
Prosecutor General Yuri Chaika told reporters Tuesday that it's nonsense to assume the rare polonium-210 isotope came from Russia.
The uranium in the cake is almost entirely the stable isotope uranium 238.
The isotope is engineered to bind to carcinoids, and any such bindings light up like beacons on the images.
Currently, Esa uses an isotope called plutonium-238 for these batteries, but this is only available from Russia and America.
Another analysis, also published in the journal Science, looks at the amount of the isotope beryllium-10 in the lunar soil.
Today, one of these monitoring stations in Sacramento, California that feeds into the IMS detected miniscule quantities of the radioactive isotope xenon-133.
This isotope can be delivered to the Moon by galactic cosmic rays.
Most of it is an isotope known as carbon-12 (12C), but there is always a smattering of a heavier isotope, 13C, mixed in.
Late Wednesday, his lawyer, Howard Jacobs, acknowledged he'd received a written statement that the carbon isotope test showed the presence of synthetic testosterone.
Cesium-137 has a radioactive half-life of about 30 years, and traces of the isotope still persist from above-ground nuclear bomb tests in the 1950s and '60s.
The isotope, known as a medical tracer, is made outside the United States by a complicated process requiring highly enriched uranium from nuclear reactors.
The substance that has such large potential is an isotope called helium-3, a form of helium but with only one neutron instead of two.
In their experiments, the two Wisconsin researchers use a solution of the nickel isotope to fill sets of microscopic channels in a silicon plate.
The moon contains large concentrations of helium-3, a nonradioactive isotope that's rare on Earth but could be an incredibly valuable fuel for nuclear fusion.
Compared to grasses, legumes generally have lower levels of a isotope of nitrogen called N15, due to the way they fix nitrogen from the air.
BBC: Earth News - Earthworms eat live seeds and plants, scientists find
Hers is not the lab that did the tests on Floyd Landis, but Dr. Ayotte has used the carbon isotope test since the late 1990s.
This isotope, with a half-life of 2.6 million years, is not made in significant quantities by any process on Earth, but is expelled by supernovae.
FORBES: Ancient Supernova Explosions Left Their Scars on Earth
Natural uranium is only 0.7% U-235, the isotope you actually want.
The nuke has had its share of scary moments, including a cooling tower collapse, and, more recently, discoveries of leaks of the radioactive hydrogen isotope tritium.
Being a company of utter geeks, Google called this beta test laptop the Cr-48 after the chemical name of an unstable isotope of the chrome element.
But while the Geiger counter spots radiation easily, it can't determine which isotope is present, and therefore is unable to tell whether danger is at hand.
应用推荐