Viruses can vary pretty widely in size depending on the specific type of virus. All are sub-microscopic, and the only way to see them is with an electron microscope since they are measured in nanometers. Influenza viruses vary in size from 10 to 300 nanometers. The nanometer is equal to one billionth of a meter, or one millionth of a millimeter.
See the related question below for more about the size and shape of the Swine Flu virus for an example.
The diameter of the HIV virus is approximately 120 nanometers.
Head is the Circumference which is Pi*Diameter where pi=22/7
No.
The size of a pin head is roughly two mm in diameter. The size of a sewing needle head is roughly five mm in diameter.
The virus head is responsible for protecting and encapsulating the genetic material of the virus, such as DNA or RNA. It helps the virus attach to host cells and inject its genetic material to initiate the infection process. The head also plays a role in facilitating the release of the genetic material into the host cell for replication.
The SARS virus is approximately 100-160 nanometers in size.
dumb head
Tetanus is a virus and it is anywhere from 10 - 400nm in diameter.
The diameter of all US small cents is 19.05mm
Head loss will decrease
square the diameter of screw.
Diameter of the piston head.