Articles related to "Radioactive Decay"
Beta Decay and the Weak Force
In order for physicists to understand the reasons for beta decay, a new nuclear force had to be developed - a task accomplished by Enrico Fermi in 1934.
radioactive decay • what is radioactive decay • what is radioactivity • how does an atom decay • beta decay
In order for physicists to understand the reasons for beta decay, a new nuclear force had to be developed - a task accomplished by Enrico Fermi in 1934.
radioactive decay • what is radioactive decay • what is radioactivity • how does an atom decay • beta decay
Radioactivity and Alpha Particles
Alpha particles are emitted from a radioactive substance by way of quantum tunneling and is governed by a statistical look at the strong nuclear force.
alpha radiation • alpha decay • alpha particles • what is radiation • atomic radiation
Alpha particles are emitted from a radioactive substance by way of quantum tunneling and is governed by a statistical look at the strong nuclear force.
alpha radiation • alpha decay • alpha particles • what is radiation • atomic radiation
Absolute Time 1
Through research, physicists and geologists have determined that certain isotopes of elements will decay into new elements. Using the decay rate, and knowing the half-life of the isotope, a geologist can date a sample of rock and determine its age.
geology • geophysics • isotopes • half-life • uranium
Through research, physicists and geologists have determined that certain isotopes of elements will decay into new elements. Using the decay rate, and knowing the half-life of the isotope, a geologist can date a sample of rock and determine its age.
geology • geophysics • isotopes • half-life • uranium
A New Experiment in the Hunt for Neutrinos
Those hunting for the elusive neutrino typically trek to exotic locations to detect the particle. But new projects are looking up to Moon to detect neutrinos using radio.
neutrino detection • neutrino on the moon • radio waves and neutrinos • anita • square kilometer array
Those hunting for the elusive neutrino typically trek to exotic locations to detect the particle. But new projects are looking up to Moon to detect neutrinos using radio.
neutrino detection • neutrino on the moon • radio waves and neutrinos • anita • square kilometer array
How Life Began – Formation of the Earth
Conditions in the early Solar System and on the pre-biotic Earth determined the availability of the chemicals to create life.
how life began • origin of life • formation of the earth • primordial earth • prebiotic earth
Conditions in the early Solar System and on the pre-biotic Earth determined the availability of the chemicals to create life.
how life began • origin of life • formation of the earth • primordial earth • prebiotic earth
Mariner 10 Mission Summary
Mariner 10, the seventh successful mission of the Mariner series in the 1970's encountered both Venus and Mercury and led to several key planetary discoveries.
mariner 10 • mercury • venus • early space missions • space science
Mariner 10, the seventh successful mission of the Mariner series in the 1970's encountered both Venus and Mercury and led to several key planetary discoveries.
mariner 10 • mercury • venus • early space missions • space science
Schrödinger's Cat Paradox
Quantum physics presents a complex view of the universe. Erwin Schrödinger criticized the theory by posing one of the most famous thought experiments in modern physics.
schrödinger • quantum • cat • paradox • physics
Quantum physics presents a complex view of the universe. Erwin Schrödinger criticized the theory by posing one of the most famous thought experiments in modern physics.
schrödinger • quantum • cat • paradox • physics
Nuclear Power Plants 101
Nuclear power plants provide about one-fifth of the world's electricity. How do they work? And why do they produce radioactive waste that will remain toxic for centuries?
introduction to nuclear power • nuclear power plants • splitting atoms • alternative energy source • toxic waste
Nuclear power plants provide about one-fifth of the world's electricity. How do they work? And why do they produce radioactive waste that will remain toxic for centuries?
introduction to nuclear power • nuclear power plants • splitting atoms • alternative energy source • toxic waste
Nuclear Radiation Detectors 101
How do radiation detectors work? And how does Homeland Security use them at the borders to prevent nuclear materials from being used in weapons of mass destruction?
nuclear radiation detectors • types of radiation • how radiation detectors work • homeland defense dirty bombs • radiation detector false alarms
How do radiation detectors work? And how does Homeland Security use them at the borders to prevent nuclear materials from being used in weapons of mass destruction?
nuclear radiation detectors • types of radiation • how radiation detectors work • homeland defense dirty bombs • radiation detector false alarms
The Beginnings of Nuclear Physics
In the final decades of the nineteenth and first few decades of the twentieth centuries, physicists would begin to unlock the mysteries of radioactivity.
henri bequerel • marie curie • pierre curie • ernest rutherford • alpha particles
In the final decades of the nineteenth and first few decades of the twentieth centuries, physicists would begin to unlock the mysteries of radioactivity.
henri bequerel • marie curie • pierre curie • ernest rutherford • alpha particles
Stratigraphy
The science of stratigraphy is important for the information it tells us about the rock record and how those rocks were originally deposited. The laws and principles set forth by early scientists help modern stratigraphers to know how sediment was originally deposited, to know which rock is older, and how to use fossils to help link different rock units to the same geologic time.
geology • geophysics • stratigraphy • uniformitarianism • superposition
The science of stratigraphy is important for the information it tells us about the rock record and how those rocks were originally deposited. The laws and principles set forth by early scientists help modern stratigraphers to know how sediment was originally deposited, to know which rock is older, and how to use fossils to help link different rock units to the same geologic time.
geology • geophysics • stratigraphy • uniformitarianism • superposition
Understanding Time and Rock Units in Geology
Geologists use three different units to help in their study of the history of the earth. Time units represent the continuous flow of time through geologic history, rock units represent the different lithologies found across the globe, and time-rock units represent all the rocks formed worldwide during a specific period of geologic time. This week we will examine these units and how they relate to each other.
geology • geophysics • earth science • stratigraphy • time
Geologists use three different units to help in their study of the history of the earth. Time units represent the continuous flow of time through geologic history, rock units represent the different lithologies found across the globe, and time-rock units represent all the rocks formed worldwide during a specific period of geologic time. This week we will examine these units and how they relate to each other.
geology • geophysics • earth science • stratigraphy • time
Why Our Food Rots: Part V
Irradiated food and mail. Both have been controversial and costly ways of preserving food and killing anthrax in our post offices.
irradiation • food • irradiate • cesium • cobalt
Irradiated food and mail. Both have been controversial and costly ways of preserving food and killing anthrax in our post offices.
irradiation • food • irradiate • cesium • cobalt
All About Mars
Mars remains a great subject of study among many astronomers. It is one of the only planets in the Solar System humans can hope to visit anytime in the near future.
all about mars • the red planet • how mars was named • observing mars • composition of the planet mars
Mars remains a great subject of study among many astronomers. It is one of the only planets in the Solar System humans can hope to visit anytime in the near future.
all about mars • the red planet • how mars was named • observing mars • composition of the planet mars
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