Dating sites list biological laboratories

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    See this page in: HungarianRussianSpanish People who ask about carbon 14C dating usually want to know about the radiometric [1] dating methods that are claimed to give millions and billions of years—carbon dating can only give thousands of years.

    People wonder how millions of years could be squeezed into the biblical account of history. Clearly, such huge time periods cannot be fitted into the Bible without compromising what the Bible says about the goodness of God and the origin of sin, death and suffering —the reason Jesus came into the world See Six Days?

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    Christiansby definition, take the statements of Jesus Christ seriously. This only makes sense with a time-line beginning with the creation week thousands of years ago.

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    It makes no sense at all if man appeared at the end of billions of years. We will deal with carbon dating first and then with the other dating methods.

    How the carbon clock works Carbon has unique properties that are essential for life on Earth. One rare form has atoms that are 14 times as heavy as hydrogen atoms: Carbon is made when cosmic rays knock neutrons out of atomic nuclei in the upper atmosphere. These displaced neutrons, now moving fast, hit ordinary nitrogen 14N at lower altitudes, converting it into 14C. Unlike common carbon 12C14C is unstable and slowly decays, changing it back to nitrogen and releasing energy.

    This instability makes it radioactive.

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    Ordinary carbon 12C is found in the carbon dioxide CO2 in the air, which is taken up by plants, which in turn are eaten by animals. So a bone, or a leaf or a tree, or even a piece of wooden furniture, contains carbon. When the 14C has been formed, like ordinary carbon 12Cit combines with oxygen to give carbon dioxide 14CO2and so it also gets cycled through the cells of plants and animals.

    Because 14C is so well mixed up with 12C, we expect to find that this ratio is the same if we sample a leaf from a tree, or a part of your body. In living things, although 14C atoms are constantly changing back to 14N, they are still exchanging carbon with their surroundings, so the mixture remains about the same as in the atmosphere.

    However, as soon as a plant or animal dies, the 14C atoms which decay are no longer replaced, so the amount of 14C in that once-living thing decreases as time goes on.

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    Obviously, this works only for things which were once living. It cannot be used to date volcanic rocks, for example. The rate of decay of 14C is such that half of an amount will convert back to 14N in 5, years plus or minus 40 years. Anything over about 50, years old, should theoretically have no detectable 14C left. That is why radiocarbon dating cannot give millions of years.

    In fact, if a sample contains 14C, it is good evidence that it is not millions of years old. However, things are not quite so simple. First, plants discriminate against carbon dioxide containing 14C. That is, they take up less than would be expected and so they test older than they really are. Furthermore, different types of plants discriminate differently.

    This also has to be corrected for. This would make things which died at that time appear older in terms of carbon dating. Then there was a rise in 14CO2 with the advent of atmospheric testing of atomic bombs in the s. Measurement of 14C in historically dated objects e.

    Accordingly, carbon dating carefully applied to items from historical times can be useful. However, even with such historical calibration, archaeologists do not regard 14C dates as absolute because of frequent anomalies.

    They rely more on dating methods that link into historical records. Outside the range of recorded history, calibration of the 14C "clock is not possible. The amount of cosmic rays reaching the Earth varies with the sun's activity, and with the Earth's passage through magnetic clouds as the solar system travels around the Milky Way galaxy. The strength of the Earth's magnetic field affects the amount of cosmic rays entering the atmosphere.

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    A stronger magnetic field deflects more cosmic rays away from the Earth. Overall, the energy of the Earth's magnetic field has been decreasing, [5] so more 14C is being produced now than in the past. This will make old things look older than they really are. Also, the Genesis flood would have greatly upset the carbon balance. The flood buried a huge amount of carbon, which became coal, oil, etc. Total 14C is also proportionately lowered at this time, but whereas no terrestrial process generates any more 12C, 14C is continually being produced, and at a rate which does not depend on carbon levels it comes from nitrogen.

    Unless this effect which is additional to the magnetic field issue just discussed were corrected for, carbon dating of fossils formed in the flood would give ages much older than the true ages. Creationist researchers have suggested that dates of 35, - 45, years should be re-calibrated to the biblical date of the flood. Since the flood was accompanied by much volcanism see Noah's Flood…How did animals get from the Ark to isolated places? In summary, the carbon method, when corrected for the effects of the flood, can give useful results, but needs to be applied carefully.

    It does not give dates of millions of years and when corrected properly fits well with the biblical flood. Other radiometric dating methods There are various other radiometric dating methods used today to give ages of millions or billions of years for rocks.

    These techniques, unlike carbon dating, mostly use the relative concentrations of parent and daughter products in radioactive decay chains. For example, potassium decays to argon; uranium decays to lead via other elements like radium; uranium decays to lead; rubidium decays to strontium; etc. These techniques are applied to igneous rocks, and are normally seen as giving the time since solidification. The isotope concentrations can be measured very accurately, but isotope concentrations are not dates.

    To derive ages from such measurements, unprovable assumptions have to be made such as: The starting conditions are known for example, that there was no daughter isotope present at the start, or that we know how much was there. Decay rates have always been constant. Systems were closed or isolated so that no parent or daughter isotopes were lost or added. There are patterns in the isotope data.

    There is plenty of evidence that the radioisotope dating systems are not the infallible techniques many think, and that they are not measuring millions of years.

    However, there are still patterns to be explained. Geologist John Woodmorappe, in his devastating critique of radioactive dating, [8] points out that there are other large-scale trends in the rocks that have nothing to do with radioactive decay. The common application of such posterior reasoning shows that radiometric dating has serious problems. So they looked at some basalt further removed from the fossils and selected 17 of 26 samples to get an acceptable maximum age of 4.

    The other nine samples again gave much older dates but the authors decided they must be contaminated and discarded them. That is how radiometric dating works. It is very much driven by the existing long-age world view that pervades academia today. Various other attempts were made to date the volcanic rocks in the area.

    Over the years an age of 2. After this was widely accepted, further studies of the rocks brought the radiometric age down to about 1.

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    Such is the dating game. Are we suggesting that evolutionists are conspiring to massage the data to get what they want? It is simply that all observations must fit the prevailing paradigm. We must remember that the past is not open to the normal processes of experimental science, that is, repeatable experiments in the present. A scientist cannot do experiments on events that happened in the past. Scientists do not measure the age of rocks, they measure isotope concentrations, and these can be measured extremely accurately.

    Those involved with unrecorded history gather information in the present and construct stories about the past. The level of proof demanded for such stories seems to be much less than for studies in the empirical sciences, such as physics, chemistry, molecular biology, physiology, etc. Williams, an expert in the environmental fate of radioactive elements, identified 17 flaws in the isotope dating reported in just three widely respected seminal papers that supposedly established the age of the Earth at 4.

    What date would you like?

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    The forms issued by radioisotope laboratories for submission with samples to be dated commonly ask how old the sample is expected to be. If the techniques were absolutely objective and reliable, such information would not be necessary.

    Testing radiometric dating methods If the long-age dating techniques were really objective means of finding the ages of rocks, they should work in situations where we know the age. Furthermore, different techniques should consistently agree with one another. The secular scientific literature lists many examples of excess argon causing dates of millions of years in rocks of known historical age.

    This is consistent with a young world—the argon has had too little time to escape. So data are again selected according to what the researcher already believes about the age of the rock.

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    Steve Austin sampled basalt from the base of the Grand Canyon strata and from the lava that spilled over the edge of the canyon. By evolutionary reckoning, the latter should be a billion years younger than the basalt from the bottom. Standard laboratories analyzed the isotopes.

    The rubidium-strontium isochron technique suggested that the recent lava flow was Ma older than the basalts beneath the Grand Canyon—an impossibility. Different dating techniques should consistently agree If the dating methods are an objective and reliable means of determining ages, they should agree. If a chemist were measuring the sugar content of blood, all valid methods for the determination would give the same answer within the limits of experimental error.

    However, with radiometric dating, the different techniques often give quite different results. In the study of the Grand Canyon rocks by Austin, different techniques gave different results. Techniques that give results that can be dismissed just because they don't agree with what we already believe cannot be considered objective. In Australia, some wood found the Tertiary basalt was clearly buried in the lava flow that formed the basalt, as can be seen from the charring.
    Collapse all January - Egress Obstruction During a regular inspection of labs at Columbia, the FDNY inspector had issued an NOV to a laboratory for a refrigerator which obstructed a secondary means of egress, an acid storage cabinet, and the overhead shower.

    The laboratory quickly resolved the situation by relocating the refrigerator. Weeks later while the FDNY inspector was on the same floor inspecting another laboratory, the Lab Safety Officer noted that the laboratory with the NOV had moved the refrigerator back to the same spot that was in violation.

    The laboratory quickly relocated the refrigerator to a permanent space. February - Blocked Sprinklers During a regular inspection of labs at Columbia, the FDNY inspector entered a laboratory with a sprinkler system and noted cardboard boxes and equipment stacked on a shelf touching the ceiling. The inspector issued a Violation Order and informed the PI that laboratories with sprinkler systems are required to have a space clearance of 18 inches from the ceiling.

    Each laboratory at Columbia is issued a fire rating based on the composition of the walls and doors as well as the presence or absence of sprinklers. This fire rating is accompanied by a maximum limit for the storage of flammable materials. For a consultation before the FDNY inspector gets around to your lab, or for any question, concern, or help, please contact your Laboratory Safety Officer.

    Inside the freezer, a small centrifuge tube containing ethanol was found. April - Chemical Segregation During a regular weekly inspection of Columbia University laboratories, the FDNY inspector examined the contents of a chemical storage cabinet and noted that nitric acid was being stored alongside acetic acid.

    Oxidizers, such as nitric acid, can never be stored near flammable or combustible materials, such as acetic acid. Ensure that all chemicals in your laboratory are stored safely and segregated according to hazard class. For more information about proper segregation, refer to our chemical segregation chart. May - Fire Extinguisher Locations During a regular weekly inspection of Columbia University laboratories, the FDNY inspector found a fire extinguisher that was used to hold open a laboratory door.

    The inspector issued a Notice of Violation NOV for failure to maintain a fire extinguisher in the proper location and readily accessible. June - Storage of Hazardous Materials During a regular weekly inspection of Columbia University laboratories, an FDNY Inspector observed several glass bottles of various chemicals stored on the floor of a laboratory. Hazardous materials including flammable, corrosive or toxic chemicals must be stored safely, in such a manner as to prevent accidental release.

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    If bottles are stored on the floor, they must be protected by secondary containment measures, such as tubs, constructed of a chemical-compatible material. Please ensure that all chemicals in your laboratory are stored safely. July - Chemical Segregation During a regular weekly inspection of Columbia University laboratories, the FDNY inspector examined the contents of a chemical storage cabinet and noted that a lecture bottle of propane gas was being stored alongside acids and flammable liquids.

    Small cylinder gases, such as lecture bottles, can never be stored in the same cabinets with any liquids, such as flammables, acids, and bases. September - Chemical Segregation During a regular weekly inspection of Columbia University laboratories, the FDNY inspector examined the contents of a chemical storage cabinet and noted that Hydrochloric Acid was being stored alongside Acetic Acid in the same secondary container.

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    Here comes the good news — Due to an important recent change to the NYC Fire Code, secondary alcohols are no longer considered to be peroxide-formers by FDNY and have been removed from their target list. Laboratories are no longer required to note the opening date on containers of 2-Propanol aka isopropyl alcohol, propanol, isopropanol, IPA or other secondary alcohols such as 2-butanol and 2-pentanol. Laboratories are still required to safely manage the chemicals on the revised list by dating these bottles once opened and discarding them once their maximum storage limit has been reached.

    November - Cylinders of Cryogenic Materials During a regular weekly inspection of Columbia University laboratories, the FDNY inspector observed several cylinders of cryogenic materials in storage in a hallway outside a laboratory. The inspector issued a Violation Order VO for improper storage of liquid cryogenic containers. Storage of liquid nitrogen cylinders in corridors, whether temporary or permanent is prohibited by the FDNY.

    Please properly store all liquid nitrogen tanks inside labs whether they are empty or full, and arrange for vendors to remove them directly from inside the lab or storage area. If more than 60 gallons of cryogenics are present, there must be an oxygen sensor installed and a G Certificate of Fitness holder present.

    Visit our website for more information on obtaining a G Certificate of Fitness. December - Chemical Segregation Using Secondary Containers During a regular weekly inspection of Columbia University laboratories, the FDNY inspector found nitric acid, a strong oxidizing acid, in the same chemical storage cabinet as acetic acid.

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    Strong oxidizers present a fire hazard when stored next to organic acids such as acetic acid. The inspector explained to the lab that these incompatible chemicals can be stored in the same cabinet as long as they are kept in separate secondary containers, e.

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