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What metals can you carbon date?
Carbon dating is typically used on organic materials containing carbon, such as wood, bone, cloth, and paper. Metals cannot be directly carbon dated because they do not contain carbon.
Why is carbon-14 dating important to us?
It can help us determine the age of long-dead organisms. It can be used for identifying anything that was once living up to about 55 000 years ago. Sometimes TV shows or Movies make out that it can determine the age of dinosaurs but that is completely false as dinosaurs lived millions of years ago. Carbon-14 dating can determine the age of ancient books, cloth, wood from furniture and some prehistory human settlements but it can not determine the age of the first Homo erectus humans as they lived more than 55 000 years ago.
What materials are these filters made off?
Filters can be made of various materials, including paper, cloth, fiberglass, activated carbon, and synthetic fibers. The choice of material depends on the type of filter and its intended use.
What should you do when you get colour from a red cloth onto a white cloth how do you get rid of it?
To remove color transfer from a red cloth onto a white cloth, try soaking the white cloth in a mixture of cold water and white vinegar. Gently rub the stained area and then launder the cloth as usual. If the stain persists, you can also try using a color-safe bleach or taking it to a professional cleaner.
List four important uses for isotopes?
Medical Usage - these are isotopes added into biological molecules (like sucrose, sugar) and injected into humans to look for accumulation which may indicate cancer and other diseases. Medical treatments. Radioactive iodine (I131) is used to treat hyperthyroidism or thyroid cancer by killing the thyroid tissue using radiation. Chemical/Biological/Agricultural Usage Isotopes are added to small biological molecules and then added into cells to see how bigger biological molecules are made from these cells. Isotopically label glucose to see if it is used in making penicillin by certain molds. Archelogical dating - used to determine the age of older materials from carbon-14 dating and other dating. Warning it only works for materials that have carbon in them - like organic items (paper, cloth, wood etc) and not stone, brick... Smoke alarms - Isotopes like Americium 241 is used in smoke alarms Food irradiation using gamma rays. This kills surface bacteria which spoil foods faster and also may cause people to be come ill.
Why is carbon -14 dating useless for dating old coins but not old pieces of cloth?
No carbon in coins. Plenty of carbon in old cloth.
What metals can you carbon date?
Carbon dating is typically used on organic materials containing carbon, such as wood, bone, cloth, and paper. Metals cannot be directly carbon dated because they do not contain carbon.
How many pieces of 8.6 meters long cloth can be cut out of a length of 455.8 meters cloth?
455.8/8.6 = 53 pieces.
Why is carbon 14 used in radioactive dating?
Carbon-14 dating is a way of determining the age of certain archaeological artifacts of a biological origin up to about 50,000 years old. It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.
Where and when were cotton fibers first used?
Scientists and historians have found shreds of cloth or written reference to cotton dating back at least seven-thousand years. Evidence of the use of cotton in the form of thread has been found in Pakistan, dating to about 6,000 B.P., although it is not clear whether the thread derived from cultivation or from wild cotton. The oldest discovery was made in a Mexican cave, where scientists unearthed bits and pieces of cotton bolls and cloth. Archaeologists have also found cloth fragments in the Indus Valley of India (Pakistan) dating about 3000 B.C.
When is the place where two pieces of cloth are sewn together?
seam
Where is a place where two pieces of cloth are sewn together?
Seem
How do you made cloth duster?
from small pieces of lots of cloths.
How do you clean a carbon fiber hood?
waxed cloth.
A place where two pieces of cloth are sewn together?
Seam.
What you use for attaching two pieces of cloth together?
The easiest thing to use to attach two pieces of cloth together is a pin.
How you can make an apron?
Take two pieces of cloth and sow them together. then take two thinner pieces and sow them to the sides.:)
