Sentences with phrase «background radiation from»

At the moment, concentrations of plutonium in waters off Fukushima are so low that background radiation from nuclear weapons testing more than 50 years ago makes the signal undetectable with our instruments.

Meanwhile, Central Park itself clocked in at 100 millirem per year, probably because of background radiation from granite found in the park.

Beyond inventions that revolutionized daily life, Bell Lab scientists made fundamental discoveries — such as the wave nature of matter and the microwave background radiation from the big bang — earning six Nobel Prizes including the one shared in 1997 by Secretary Chu for a method of trapping atoms with lasers.

You can happily conflate «light» with the background radiation from the big bang, but there is no terrestrial day and night without prior solar ignition.

Not exact matches

The balloon - borne microwave telescope (called «Boomerang») examined the cosmic background radiation left over from the Big Bang.The angular power spectrum showed a peak value at exactly the value predicted by the inflationary hot Big Bang model dominated by cold dark matter.

«Cosmic background radiation is well explained as radiation left over from an early stage in the development of the universe, and its discovery is considered a landmark test of the Big Bang model of the universe.»

4s) then photons erupted from this energy cloud (detectable today as the microwave background radiation) 5s) photons and other particles form the bodies of the early universe (atoms, molecules, stars, planets, galaxies) 6s) it rained on the early earth until it was cool enough for oceans to form 7s) the first life form was blue green bacteria.

4) then photons erupted from this energy 4) let there be LIGHT (1 - 4 all the first day) cloud (detectable today as the microwave background radiation) 5) photons and other particles form the 5) God next creates the heavens (what we call the sky) above bodies of the early universe (atoms, (2nd day) molecules, stars, planets, galaxies) 6) it rained on the early earth until it was 6) dry land appears as the oceans form (3rd day) cool enough for oceans to form 7) the first life form was blue green bacteria.

The puzzle emerged after astronomers measured the cosmic microwave background — a bath of radiation, left over from the Big Bang — and found only slight variations in its temperature across the entire sky.

Experts say the dose from the backscatter is negligible when compared with naturally occurring background radiation, but a linear model shows even such trivial amounts increase the number of cancer cases

[6] Cosmic - infrared background radiation, similar to the more famous cosmic microwave background, is a faint glow in the infrared part of the spectrum that appears to come from all directions in space.

The discovery provides new and exciting information that could better our understanding of some astrophysics, including how certain galaxies obtain their shapes [4]; how intergalactic space becomes enriched with heavy elements [5]; and even from where unexplained cosmic infrared background radiation may arise [6].

These photons fly uniformly through space from all directions, with an average temperature of 2.7 kelvins (° 455 degrees Fahrenheit), composing a cloud of radiation called the cosmic microwave background (CMB).

The next decade, studies of the cosmic microwave background (the relic radiation from the Big Bang) by the Wilkinson Microwave Anisotropy Probe, or WMAP, provided a new way to measure the total amount of dark matter; this is the same technique that the Planck spacecraft built upon to come up with its more precise cosmic breakdown.

The result was another surprise: the researchers found that the universe was expanding a little faster than Lambda - CDM and the Cosmic Microwave Background (CMB), relic radiation from the Big Bang, predicted.

Other bubble universes might be detected in the subtle temperature variations of the cosmic microwave background radiation left over from the big bang of our own universe.

To put these numbers in perspective, the average person encounters 360 millirems of annual «background radiation» from natural and man - made sources, including substances in Earth's crust, cosmic rays, residue from nuclear tests and smoke detectors.

It turns out that the thousands of feet of solid salt deposits and clay designed to protect against radiation leaks also protect the caverns from the background radiation constantly hitting Earth's surface.

Kashlinsky and his team noticed this phenomenon while studying the cosmic microwave background, radiation left over from just after the Big Bang.

Everyone can recall examples of these happy accidents, from the discovery of the antibiotic penicillin by Alexander Fleming to the detection of the cosmic microwave background radiation by Arno Penzias and Robert Wilson.

A team from Fukushima University recently mapped radiation levels at 370 spots in the prefecture and, using weather balloons, confirmed that atmospheric radiation levels have dropped to near background levels.

Ultraviolet light from early, blueish stars (illustrated) interacted with hydrogen gas, causing it to absorb background radiation, and creating a signature scientists have now detected.

According to previous simulations, UV - B radiation at the end of the Permian may have increased from a background level of 10 kilojoules (just above current ambient levels) to as much as 100 kilojoules, due to large concentrations of ozone - damaging halogens spewed from volcanoes (SN: 1/15/11, p. 12).

The only reasonable interpretation is that this background is radiation left over from an early hot and dense state.

These primordial gravitational waves are too faint to be detectable directly, but it should be possible to see their imprint on the relic radiation from the big bang — the cosmic microwave background.

The balloon is immersed in a bath of inert oil to prevent interference from background radiation.

Most WIMP detectors are placed deep underground to shield them from background radiation that can cloud that signal.

These high - energy rays are also easily distinguished from normal background radiation, cutting down on false positives.

Rapid inflation in every direction also explained why the universe we now observe is so homogeneous, and why the temperature of the background radiation left over from that primordial blast is uniform, in every patch of the sky, to one part in 100,000.

The Cosmic Microwave Background radiation, or CMB for short, is a faint glow of light that fills the universe, falling on Earth from every direction with nearly uniform intensity.

He matched this gap with an enormous «cold spot» — colder than the frigid temperatures of deep space — in the cosmic microwave background, the leftover radiation from the Big Bang.

The first results from the FIRAS experiment, using only 9 minutes of data, showed that the cosmic background radiation has exactly the black - body spectrum expected in the hot big bang theory, with a temperature of 2.735 + / - 0.060 kelvin.

From studying the cosmic microwave background (CMB)-- the leftover radiation from the big bang — they have spotted traces of gravitational waves — undulations in the fabric of space and time — that rippled through the universe in that infinitesimally short epoch following its biFrom studying the cosmic microwave background (CMB)-- the leftover radiation from the big bang — they have spotted traces of gravitational waves — undulations in the fabric of space and time — that rippled through the universe in that infinitesimally short epoch following its bifrom the big bang — they have spotted traces of gravitational waves — undulations in the fabric of space and time — that rippled through the universe in that infinitesimally short epoch following its birth.

The fliers in this nebula, which appear as two red blobs against a pale green background of radiation, seem to be moving fast enough — about 100,000 miles per hour — to fit Balick's original theory, but they also have backward - pointing bow shocks, as though an even faster wind were coming from behind and pushing past them.

But apart from this, by the 1980s experiments showed that the background radiation temperature was embarrassingly smooth.

The time asymmetry will then explain why in the beginning the universe was so uniform, as evinced by the microwave background radiation left over from the big bang, whereas the end of the universe must be messy.

Inflation would generate gravitational waves, giving a subtle twist to the polarization of the cosmic microwave background (CMB), the ubiquitous whisper of radiation left over from the Big Bang.

And in 1969, scientists noticed a strange distortion in the ubiquitous cosmic microwave background, radiation thought to be left over from the Big Bang.

In August the craft's telescope and detectors began the most detailed study ever made of the cosmic microwave background radiation, the remnant energy from the Big Bang.

Thanks to the dry, clear atmosphere at the South Pole, SPT is better able to «look» at the cosmic microwave background — the thermal radiation left over from the Big Bang — and map out the location of galaxy clusters, which are hundreds to thousands of galaxies that are bound together gravitationally and among the largest objects in the universe.

The place to look for such a scar is the cosmic microwave background — the all - pervasive radiation left over from the Big Bang.

Satellites collect data from the radiation emitted from the Big Bang, which is called the Cosmic Microwave Background, or CMB.

By measuring subtle variations in the cosmic microwave background (CMB), the remnant radiation from the early universe that pervades the sky, WMAP refined the estimated age of the universe (13.7 billion years, give or take), among other key cosmological parameters.

The participants were M.I.T.'s Alan Guth, the developer of the inflationary model of the universe, Lawrence Krauss, a frequent contributor to Scientific American magazine and director of the Origins Initiative at Arizona State University, John Carlstrom from the University of Chicago, who studies the cosmic microwave background radiation left over from the big bang and Scott Dodelson of the Fermi National Accelerator Laboratory, who studies the origin and structure of the universe.

There are contributions from interstellar matter, from the three - degree - Kelvin background radiation left over from the early history of the universe, from noise that is fundamentally associated with the operation of any detector and from the absorption of radiation by the earth's atmosphere.

«The only source of noise is the cosmic microwave background,» says Tarter, referring to remnant radiation from the big bang, whose signal has been well studied.

Look across space from one edge of the visible universe to the other, and you'll see that the microwave background radiation filling the cosmos is at the same temperature everywhere.

According to standard physics, cosmic rays created outside our galaxy with energies greater than about 1020 electronvolts (eV) should not reach Earth at those energies: as they travel over such vast regions of space they should lose energy because of collisions with photons of the cosmic microwave background (CMB), the radiation left over from the big bang.

In comparison, the average annual exposure from background levels of radiation in the UK is around 2.7 millisieverts.

In contrast, there was almost no change in so - called background radiation, which naturally emanates from soil, rocks and other environmental substances.