1. 1  Transportation. 2  Blood is the primary means of transport in the body that is responsible for transporting important nutrients and materials to and from the cells and molecules that make up our body.
Flag Display Guide. Displaying the Flag at Half Mast: When you need to display the American flag at half mast, you actually need to hoist it completely to the peak of the pole and then instantly lower it to the half staff position. At the close of the day, the flag should again be raised to the peak of the flag pole and then lowered completely.
Polymer/Physical/Computational Chemist. 1  Normal protocol is to fly the flag at half mast to commemmorate the death of a public figure or on certain holidays such as Memorial Day. When flying a flag at half mast, it should be raised to full height and then lowered to half mast. When lowering a flag that is at half mast, raise it to full height and then lower it. In the United States, 4 USC section 7(m) specifies that the flag should be flown at half mast: Upon the death of a president or former president of the US, for thirty days.