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Which part of the em spectrum can be used to kill bacteria?
Ultraviolet (UV) radiation, specifically UVC light, can be used to kill bacteria. UVC light has a short wavelength and high energy, which damages the DNA and RNA of bacteria, preventing their growth and reproduction. This property makes UVC light an effective tool for disinfection purposes.
Why doesn't uvc reach us?
UVC is entirely absorbed by dead skin cells and is not dangerous. UVC may be a problem on broken skin and if shone direct into the eyes for long periods but as a general killer of virus and bacteria it is very useful. There are no known links between UVC and cancers and by killing virus's it may prevent you getting virus induced cancers.
How is it possible for stratospheric ozone to offer any protection from UV radiation?
Ultraviolet radiation is a portion of the electromagnetic spectrum with wavelengths shorter than visible light. The sun produces UV, which is commonly split into three bands: UVA, UVB, and UVC. UVA is not absorbed by ozone. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal oxygen. see related link
What electromagnetic spectrum are safe for humans?
in electromagnetic spectrum visible light is safe for humans
Are embryonic stem cells a safe source for the generation of human gametes in vitro?
Embryonic stem cells have proved to be a safe source for the generation of human gametes in vitro.
Which part of the em spectrum can be used to kill bacteria?
Ultraviolet (UV) radiation, specifically UVC light, can be used to kill bacteria. UVC light has a short wavelength and high energy, which damages the DNA and RNA of bacteria, preventing their growth and reproduction. This property makes UVC light an effective tool for disinfection purposes.
Why does UVC not affect the skin?
UVC radiation is almost completely absorbed by the ozone layer and does not affect the skin as it doesnt get to us.
What electromagnetic waves must sunscreen protect the skin?
UVa and UVb are considered beneficial to the skin as they are responsible for the production of Vitamin D and certain anti-cancer processes. UVc is considered carcinogenic and therefore anything above that is as well.
What does production plan mean?
prod planning uvc
What is the definition of the word UVC?
There are two definitions for UVC. One being radiation in the ultraviolet spectrum and is more hazardous than UVB. The second is medical which has essentially the same meaning.
Why doesn't uvc reach us?
UVC is entirely absorbed by dead skin cells and is not dangerous. UVC may be a problem on broken skin and if shone direct into the eyes for long periods but as a general killer of virus and bacteria it is very useful. There are no known links between UVC and cancers and by killing virus's it may prevent you getting virus induced cancers.
Does UV light kill germs?
Germicidal ultraviolet (UVC) light kills cells by damaging their DNA. The light initiates a reaction between two molecules of thymine, one of the bases that make up DNA. UV light at this wavelength (shortwave UV or UVC) causes adjacent thymine molecules on DNA to dimerize. The resulting thymine dimer is very stable. If enough of these defects accumulate on a microorganism's DNA its replication is inhibited, thereby rendering it harmless. The longer the exposure to UVC light, the more thymine dimers are formed in the DNA. If cellular processes are disrupted because of DNA damage, the cell cannot carry out its normal functions. If the damage is extensive and widespread, the cell will die.
What are 3 types of ultra violet radiation?
UVC UVB UVA
Are human eyes a source of light?
no a human is not a source of light
What is the maximum sound level is safe for human ear in DB?
What is the maximum sound level is safe for human ear
How is it possible for stratospheric ozone to offer any protection from UV radiation?
Ultraviolet radiation is a portion of the electromagnetic spectrum with wavelengths shorter than visible light. The sun produces UV, which is commonly split into three bands: UVA, UVB, and UVC. UVA is not absorbed by ozone. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal oxygen. see related link
Is copper safe for human to handle?
Copper (as a metal or alloys) is safe.
