Sentences with phrase «rates of decay»

«The radionuclide ratios we measured in the sediments and the rates of decay and growth of radioactive elements in the impacted sediments allowed us to essentially age - date the contamination to after 2011,» she explained.

You do not know how or when the carbon molecule was created, nor do you know whether the rate of decay was constant (you assume it instead) because you can not measure the conditions in the past.

Quantum mechanics can only in abstract account for decay it does not affect the rate of decay.

@Blessed, First, it wouldn't affect the rate of decay.

The rate of decay suggested that for a garnet - infused diamond to reach the surface it must take between hours and days to travel from a depth of 400 km.

Hitlin, Dorfan, and Oddone wanted to analyze differences in the rate of decay of Bs and anti-Bs that might show how matter managed to survive the conflagration that followed the Big Bang.

The ATLAS team also announced new results from analysing the Higgs boson's rate of decay into pairs of photons.

But frustratingly, with that tightening of the statistics came a drop in the rate of decays to photon pairs, which muddies the waters.

Since the rate of these decays depends on how massive neutrinos are, this would be a roundabout way of measuring neutrino masses, which has never been done.

Because radiocarbon has a known rate of decay, scientists can determine about how long it has been since the plant or animal was alive.

You might notice that sugar dissolves in hot water faster, or putting food in the refrigerator will slow the rate of decay.

Options are wasting assets, and theta measures the rate of decay.

Just like how miles are worth a different amount to each of us; Your rate of Decay and my rate of decay are very different.

The increased heat and humidity only serve to increase the rate of decay.

I agree that the multimillennial «tail» of the CO2 decay trajectory is relatively unimportant in its own right, but it is not trivial, because it affects the overall rate of decay that includes processes that occur over many decades or a few centuries involving CO2 mixing into the deep ocean and carbonate buffering, and makes them slower than they would be otherwise.

At a theoretical «half life» of CO2 in the climate system, the instantaneous annual rate of decay equals 0.58 % of the concentration at that time.

Thus the observed sink rate in 14C decay is far too short, the real sink rate of the decay of an extra amount of CO2 is much slower.

The rate of decay is well characterized by engineering weenies like me and taken into account by system integrators and facility managers.

You get to keep your planetary greenhouse without an atmosphere, and I have the pleasure of knowing that your planet isn't going to last much longer due to its high rate of decay.

Not only do arkies use C14 (they are not the only ones who do, of course), but the C14 rate of decay was found long ago to not be quite linear, so there has been much work put into identifying the causes that might affect it and nailing down the variations for different periods in the past.

The rate of decay increases over time.

Not exact matches

I have long been a strong advocate of debt - financed public investment in the context of low interest rates and a decaying US infrastructure, so I was glad to see Mr Trump emphasise it.

Data in your sales and marketing systems decays at rates of 30 - 70 % every year.

Yet, research has shown that decay rates can change according to the chemical environment of the material being tested.

He stands on the shoulders of giants to invent (not discover, big diff) what is essentially a doo dad that depends on radioactive decay rates, particle physics etc...

In fact, decay rates have been increased in the laboratory by a factor of a billion.

Carbon 14 assumptions, e.g. rate of C14 generation in upper atmosphere, have absolutely nothing to do with the lead - lead decay rate.

The Bible also states that the universe is subject to decay and will wear out.25 The existence of the second law of thermodynamics, coupled with recent discoveries indicating that the universe is expanding at an increasing rate, with an insufficient amount of matter to stop that contraction, guarantees that the Bible is correct on this claim, also.

He simply could not understand how fossils could be dated and was just positive that man ate all the dinosaurs, and no matter how hard I tried to explain how sediment layers build up at consistent rates, how radio carbon decays at a predictable rate, how fossils form and why we know this, nothing I told him could convince him that T - rexs did not run the earth in the «time of Adam and Eve».

The idea is that while the or - ganism was alive it had a known amount of each type of carbon, but that once it has died, the amount of one type of carbon decreases at a known rate through a process of radioactive decay.

When the fabric of a society begins to decay, the resulting problems tend to multiply at an alarming rate.

If the production rate of C - 14 in the atmosphere was less in the past, dates given using the carbon - 14 method would incorrectly assume that more had decayed out of a specimen than what actually occurred, and would result in faulty data.

The decay rate and presence of carbon is accurate ONLY IF the item (ie fossil, rock, etc) HAS NOT been exposed to any elements (rain, wind, etc).

This holds whether we are thinking of how to grow more grain in the tropics, reduce the birth rate, control inflation, stimulate economic growth, get rid of tooth decay, provide better health care, find some way to turn garbage into a useful resource, reduce air pollution, win the next election, avoid war with Russia, develop human potential, extend the length of life, or find a cure for cancer.

Jason Armfield, a senior research fellow at the Australian Research Centre for Population Oral Health, says the association is investigating the links between bottled water and the increasing rates of childhood tooth decay.

Off topic questions included: the ISIS in Iraq and potential threats to New York, his hair color in a World Cup themed picture, the City's negotiations with CW Capital concerning Stuyvesant Town, whether he concerned that religion - affiliated CBO's pre-K programs will involve some religious instruction or indoctrination, the Rent Guidelines Board and a possible rent increase, rating his administration on it's FOIL responsiveness, whether subway dancers are a «sign of urban decay», whether he is contemplating a special district for failing schools and whether there is symbolism is seeking to bring the Democratic National Convention to Brooklyn rather than Manhattan and whether he has coordinated that effort with Hillary Clinton.

Some isotopes that existed when the Solar System formed are radioactive and have decay rates that caused them to become extinct within tens to hundreds of million years.

Analyses of thin mineral deposits partly covering painted cave areas provided minimum age estimates for the art, based on known decay rates of radioactive uranium in the rock.

Animal cells take up carbon - 14 when they are formed, and because the decay rate of carbon - 14 is known, the time of death can be deduced from the amount of isotope left.

(A becquerel is a unit of the rate of radioactive decay — or radiation emitted by a substance.)

«We developed three independent age - dating techniques that are based on the different decay rates of radium, thorium and lead isotopes.

Mysterious seasonal wobbles in the rate of radioactive decay may be caused by elusive particles from the sun

If the universe didn't play favorites, kaons and antikaons should have decayed at exactly the same rate, into exactly the same types of particles.

In the summer of 2001, the BaBar researchers, after sorting through some 30 million B and B - bar decays, announced that they had found evidence of a difference between the decay rates of matter and antimatter.

The decay rate of their sample actually started to drop 40 hours before the flare.

The changes in radioactive decay rate tracked that pattern, rising and falling on cue over the course of the year.

The smaller that mass, the lower the rate of the neutrinoless decays (and therefore the longer the half - life), and the harder the decays are to find.

This is a routine bookkeeping style of research: According to known physics, this type of radioactive decay is a fundamental process that unfolds at an unchanging rate, and all the researchers were aiming to do was to measure that rate and record it for reference.

Members of a team led by paleoanthropologist Isaiah Nengo estimated the fossil's age by assessing radioactive forms of the element argon in surrounding rock, which decay at a known rate.

Now he had an important additional piece of information: Proximity to the sun seemed to influence radioactivity, and violent activity on the sun could also increase or decrease decay rates.