As you can see from the above, an f stop of f/1.4 is really wide. It is letting a lot more light into the lens and ultimately onto the sensor than, say, f/8. Thus: The lower the f stop number, the wider, or bigger, the aperture. So, if someone tells you to âstop downâ, they are referring to decreasing the size of the aperture, which is achieved by increasing the f stop number.
A traditional method of providing temporary immunity for a person who is suspected of being infected (usually be an animal bite) with rabies is classified as passive artificial immunity Antibodies secreted in breast milk
Rabies is a viral disease that affects the central nervous system. Rabies can infect any warm-blooded animal. There is no cure for rabies, and it is almost always fatal. Once clinical signs occur, an infected animal usually dies within five days. The only way to test for rabies is by examination of the brain tissue of a dead animal. There is no way to test for rabies infection in a live animal.