Orthostatic hypotension (also called postural hypotension) is a sudden fall in blood pressure that occurs upon standing quickly. Blood pressure is the force of your blood against the walls of your arteries (the blood vessels that carry blood from the heart through the body). Hypotension is the term for low blood pressure. When you stand up, gravity pulls blood into your legs, and your blood pressure begins to fall. Certain reflexes in your body compensate for this change. Your heart beats faster to pump more blood, and your blood vessels constrict to prevent blood from pooling in your legs.
There are literally thousands of man made objects in space, such as parts of old space rockets sent up by Russia, China, Europe and the USA etc, lots of military and civilian satellites used for communication, navigation, research and reconnaissance, space probes sent to explore planets like Mars, the Hubble Space Telescope used to look deep into ...
There were three other dwarf planets before Makemake. They are Pluto, Ceres, and Eris. Makemake is a large Kuiper Belt Object (KBO). It is an icy world that orbits far from the Sun on the frozen fringes of our Solar System.ompare it to the first three dwarf planets (Pluto, Eris, and Ceres) and to Earth. Makemake is smaller than both Pluto and Eris. It is larger than Ceres. Makemake has a diameter between 1,300 km and 1,900 km.