Sentences with phrase «how radioactivity»

You can view videos of some past Perimeter physics lectures below: Shape - Shifting Particles: Mysterious Neutrinos [Video] The Hunt for Dark Matter and Dark Energy [Video] Strange, Dense Matter: The Power of Neutron Stars [Video] How Radioactivity Can Benefit Your Health [Video]

You can view videos of some past Perimeter physics lectures below: Strange, Dense Matter: The Power of Neutron Stars [Video] How Radioactivity Can Benefit Your Health [Video] The Promise of Optical Atomic Clocks: Watch Live Wednesday [Video] The Astonishing Simplicity of Everything [Video] The Man Who Explained the Atom [Video] The Future of Cosmology [Video] The Upgraded LHC and the Search for the Higgs Boson [Video] String Theory LEGOs for Black Holes [Video]

The lingering questions include how the radioactivity might contaminate ocean life that humans eat

Not exact matches

In advancing these theories they disregard factors universally admitted by all scientists — that in the initial period of the «birth» of the universe, conditions of temperature, atmospheric pressure, radioactivity, and a host of other catalytic factors were totally different than those existing presently, including the fact that we don't know how single atoms or their components would bind and consolidate, which involved totally unknown processes and variables, as single atoms behave far differently than conglomerations of atoms.

It successfully explained phenomena such as radioactivity and antimatter, and no other theory can match its description of how light and particles behave on small scales.

Spills from oil and gas operations can contaminate local water and soil with high levels of toxic chemicals, salts and radioactivity, but in many cases there is insufficient information to determine how long ago the spill occurred and identify its source.

Every country has its own ways, and so it is very interesting to see how departments here deal with safety, or work with radioactivity or animals, for example.

Krejci and her colleagues have not yet tested how well the algae survive in the presence of radioactivity.

Yes, we've all heard of Marie Curie's exploits with radioactivity (1890) and Rosalind Franklin's indispensable x-ray crystallography work toward the discovery of the DNA double - helix (1953), but how many of us know that Nettie Maria Stevens (1905) demonstrated that the X and Y chromosomes were responsible for determining the sex of an individual?

One of the things that is kind [of] fascinating is we don't know how much radioactivity there is in [the] Earth.

How much radioactivity will remain from our nuclear activities?

By the time the water reaches this area and is taken up into seafood, radioactivity is probably well diluted below what is probably dangerous for human consumption, but marine biologist Nicholas Fisher of Stony Brook University in New York says that the study will be a useful baseline to understand how radiation is dispersed in the specific ocean patterns and sea life of the Pacific.

The question has long been, if the Marcellus can cause radioactive gas to seep into people's basements, how much radioactivity might be infused into the water left over from drilling?

The review did not calculate how much radioactivity people may be exposed to, even though such calculations are routinely completed by scientists studying radiation exposure.

Earth sciences - Radiometric dating: In 1905, shortly after the discovery of radioactivity, the American chemist Bertram Boltwood suggested that lead is G. Brent Dalrymple's classic debunking of the young - earth «scientific» creationism's dating methods with a short explanation of how geologists know the age

How to reduce nuclear wastes or how to treat them including the debris from TEPCO's Fukushima nuclear power stations is discussed; and 3) Environmental radioactivity, radioactive waste treatment and geological disposal policy.State - of - the - art technologies for overall back - end issues of the nuclear fuel cycle as well as the technologies of transmutation are presented heHow to reduce nuclear wastes or how to treat them including the debris from TEPCO's Fukushima nuclear power stations is discussed; and 3) Environmental radioactivity, radioactive waste treatment and geological disposal policy.State - of - the - art technologies for overall back - end issues of the nuclear fuel cycle as well as the technologies of transmutation are presented hehow to treat them including the debris from TEPCO's Fukushima nuclear power stations is discussed; and 3) Environmental radioactivity, radioactive waste treatment and geological disposal policy.State - of - the - art technologies for overall back - end issues of the nuclear fuel cycle as well as the technologies of transmutation are presented here.

Re 392 Chris Dudley — I don't understand what you mean by R ^ 2T ^ 4 — and there should be something about how optical depth is proportional to R, and also, if you're going a significant distance toward the center of such an object, there is the issue of spherical geometry; if the optical thickness is large enough across small changes in radius, then you don't need to account for the spherical geometry in the calculation of the flux per unit area as a function of the temperature profile and optical thickness; however, the flux per unit area outward will drop as an inverse square, except of course within the layers that are being heated through a different process (SW heating for a planet, radioactivity, latent and sensible heat loss associated with a cooling interior, gravitational potential energy conversion to enthalpy via compression (adiabatic warming) and settling of denser material under gravity (the later both leads to compression via increased pressure via increased gravity within the interior, and also is a source of kinetic energy which can be converted to heat)...

That missing radioactivity, originating as fallout from atmospheric nuclear tests during the 1950s and 1960s, routinely provides researchers with a benchmark against which they can gauge how much new ice has accumulated on a glacier or ice field.