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
What is rabies? Rabies is an infection caused by a virus. It affects the brain and spinal cord ( central nervous system ) of mammals,including humans. It is nearly always deadly if not treated before symptoms begin. Animals that are infected with rabies-rabid animals-can spread the disease through their saliva or through brain tissue. It is rare for people in the United States or Canada to get rabies. It is more common in developing nations. How do you get rabies? People usually get rabies when a rabid animal bites them. People in the U.S. and Canada are most likely to get rabies from bats. 1 People in many other countries are most likely to get rabies from dog bites. 2, 3