A: In 1976, Vanguard introduced individual investors to the first mutual fund designed to mimic the S&P 500 Index. Today it is known as the VanguardÂ® 500 Index Fund. Nowadays, most investment firms, including Fidelity and Schwab, offer an S&P 500 index fund.easonality of S&P 500 and Mega Cap Stocks. A look at whether the S&P 500 and specific stocks tend to rally in October, November and December, and how often they do.
Â· Temperature affects osmosis, because the greater the temperature, the greater the energy (which must be heat), the faster the molecules under the influence of the heat will move, and the faster they will diffuse across the membrane. This isn't the only worry, because heat can have a physically detrimental affect on this experiment as well.
Also, your normal body temperature changes by as much as 1Â°F (0.6Â°C) throughout the day, depending on how active you are and the time of day. Body temperature is very sensitive to hormone levels and may be higher or lower when a woman is ovulating or having her menstrual period.hen you are too hot, the blood vessels in your skin expand (dilate) to carry the excess heat to your skin's surface. You may begin to sweat, and as the sweat evaporates, it helps cool your body. When you are too cold, your blood vessels narrow (contract) so that blood flow to your skin is reduced to conserve body heat.