Sentences with phrase «determining ages of»

A discussion of the methods for determining the ages of ancient ice cores.

This range is especially useful for determining ages of human.

What we present here is an highly autonomous way of determ... ▽ More Determining the ages of red - giant stars is a key problem in stellar astrophysics.

Abstract: Determining the ages of red - giant stars is a key problem in stellar astrophysics.

The age they have come up with differs from previous estimates, and this suggests that the established technique of determining the ages of star clusters is much less reliable than astronomers had thought.

How does one determine the age of a being that can be powered down, or reset?

The point of non-observable past and trying to determine the age of something is that the methods once thought to be trustworthy and accurate are not as accurate as once thought.

They determined the age of the tooth.

There, LaRoche and fellow - pro Blaine Boyer «conducted surveillance in brothels and tried to determine the age of the girls — known only by numbers pinned to bikinis — and identify their bosses,» says the ESPN profile.

Some of the methods used to determine the age of the planet include: Stratigraphy, Dendrochronology, Obsidian Hydration Dating, Paleomagnetic / Archaeomagnetic, Luminescence Dating, Amino Acid Racemization, Fission - track Dating, Ice Cores, Cation Ratio, Fluorine Dating, Patination, oxidizable Carbon Ratio, Electron Spin Resonance, and Cosmic - ray Exposure Dating.

even beyond carbon dating there are many methods of determining the age of relics and remains.

Young Earth creationists use this construct and biblical genealogies to determine the age of the Earth, and typically come up with 6,000 to 10,000 years.

Again I state... we do nt use theologians to determine the age of the earth, we use scientists... and until such time you can refute all the different methods used to determine age then that carries far more weight than what a 2000 year old book says.

theologians have about as much value to add to determining the age of the Earth as they do to determining the age of the Universe.

People can choose to believe it, but that does not make it science and anything from it can not be legitimately taught as alternative theories of science, whether in astrophysics vs. the «big bang», biology vs. evolution or embryology, etc., or physics and geology in determining the age of the earth and universe.

Carbon dating isn't used to determine the age of the Earth.

The speed of light is a constant, so we can make extrapolations based on how fast it travels to determine the age of the light that we observe.

After three years of tests» tree - ring dating (to determine the age of the wood frame), x-ray examination at Cambridge University, and infrared reflectography» Stanley Wells of the Shakespeare Institute unveiled earlier this year a new painting of Shakespeare, the Cobbe portrait (1610).

Akey says determining the age of our mutations is made possible only by the stupendous increase in gene sequencing speed and power.

Radiocarbon dating is a radiometric dating method that uses the naturally occurring isotope carbon - 14 to determine the age of carbonaceous materials up to ca 60,000 years.

Determining the age of a star can be tricky or impossible.

The cores were also sampled for chemical measurements in Dartmouth's Ice Core Laboratory to determine the age of each ice layer.

Tests in soils affected by oil and gas wastewater spills in West Virginia and North Dakota verify that the new methods can determine the age of spills and identify their origins, based on the variations of radium isotopes and their decay products found in contaminated soils or sediments.

The study used radiocarbon dating to determine the age of methane emitted from expansion zones, where Arctic lakes have recently grown to consume and thaw terrestrial permafrost.

Hand thinks scientists could use this type of color variation to help determine the ages of geologic features and material ejected from any plumes that might exist on Europa.

THE MOTIVE How do you determine the age of an ancient star?

The new technique is potentially useful in the context of police investigations because it can help determine the age of criminals or unidentified bodies, which in turn can lead to identification.

They work on determining the age of minerals in volcanic ash, which establishes a precise and detailed chronology of Earth's climate evolution.

This new map allows scientists to determine the age of large swaths of the second largest mass of ice on Earth, an area containing enough water to raise ocean levels by about 20 feet.

To determine the age of the blood cells, Higgins and his colleagues developed an equation that compares glucose levels obtained by the A1C test with another method called continuous glucose monitoring.

It was, however, difficult to exactly determine the age of the human skeletal material using conventional radiocarbon dating, because the collagen in the bones had been completely washed out due to the long period spent in water.

The value of the Hubble constant is the main factor in determining the age of the Universe.

As Luis Bartolomé pointed out, «what is interesting about this method is that it can more accurately determine the age of the stroke produced by the ballpoint pen.

Elements like uranium 238, which has a half - life of 4.5 billion years, let geologists determine the age of rocks and meteorites; those that decay over thousands of years, like carbon - 14, help date archaeological artifacts and human remains.

By measuring how much of the original element remains, scientists can determine the age of a sample.

Although researchers have determined the ages of rocks from other planetary bodies, the actual experiments — like analyzing meteorites and moon rocks — have always been done on Earth.

Farley and his colleagues determined the age of the mudstone to be about 3.86 to 4.56 billion years old.

Farley, W.M. Keck Foundation Professor of Geochemistry and one of the 29 selected participating scientists, submitted a proposal that outlined a set of techniques similar to those already used for dating rocks on Earth, to determine the age of rocks on Mars.

In order to determine the age of the ancient seeds, the researchers split the grains and subjected half of them to radiocarbon dating while the other half was used to extract the ancient DNA.

A new study examining the role of ethnicity in determining the age of onset and severity of ALD, and comparing risk factors for its progression among ethnic groups, has found that ethnicity is a major factor affecting the age and severity of different subtypes of ALD.

Despite this success, Olsen still needed to determine the ages of the layers; scientists can date only certain types of rocks.

Scientists have yet to pin down a date for when H. naledi lived because the nature of the cave in which it was found makes it difficult to determine the age of its fossils.

The team also took core samples of mud from 1 to 2 meters below the seafloor and analyzed ancient pollen to determine the age of the samples.

To determine the age of the objects, Assendorp needed to know the age of the Cha - I cloud.

It was drilled as part of the International Ocean Drilling Programme, (IODP), to determine the age of the ocean - floor sediments in the area.

In the case of Alta Genetics, it's impossible to determine the age of their payables due to the amalgamation of payables and «accrued liabilities» as one line on their balance sheet.

Several teams tried to determine the age of the skeleton by dating the rocks around it, using techniques based either on the earth's magnetic field or the decay of uranium in the rocks.

Then they used uranium / lead dating to determine the age of each zircon (the time when its parent rock crystallized).

Professor Luca Caricchi adds: «When we determine the age of a family of zircons from a small sample of solidified magmatic rock, using results from the mathematical model we have developed, we can tell what the size of the entire magma chamber was, as well as how fast the magma reservoir grew.»

Specifically, he wanted to determine the age of the antler and two other specimens he located.