Increasing your water heater temperature by just 10ÂºF from 130ÂºF to 140ÂºF may increase heat loss resulting in a larger electric bill from $30 to $75 dollars annually. Setting the temperature to 140ÂºF can also increase demand losses resulting in an annual expense of up to $500 dollars.
Material that is very strong and tough but shows very little elongation as it absorbs energy Kevlar Material that is the best choice for the support beams of a building
I thought that since UV light has more energy than visible light and N2 can absorb only energy from UV light, then the energy from the visible light is inadequate for exciting it. I2 molecules absorb both visible and uv light successfully, so they require less energy to excite. I know... this is a half-baked guess.