Astronomy

aristrachus of samos

aneroid barometer

The measurement of the grams of water in a kilogram of air is called specific humidity.

cold front(:

Mercury: None

Venus: None

Earth: Moon

Mars: Phobos

Jupiter: Ganymede

Saturn: Titan

Uranus: Titania

Neptune: Triton

*Pluto: Charon

*Pluto is not a planet but in case your are curious...

Three types of energy that are collected by telescopes are Light energy, Mechanical energy and Thermal energy.

U.S. F-86 and MIG-15

Time

the constellation is called perseus.it is of this guy Perseus holding Medusa\'s head. (the person who had snakes for hair).

In many places including the United States, winter is defined as the period from the winter solstice to the vernal equinox, spring is defined as the period from the vernal equinox to the summer solstice, summer is defined as the period from the summer solstice to the autumnal equinox, and fall or autumn is defined as the period from the autumnal equinox to the winter solstice. In the northern hemisphere, the winter solstice is the December solstice, the vernal equinox is the March equinox, the summer solstice is the June solstice, and the autumnal equinox is the September equinox. In the southern hemisphere, the winter solstice is the June solstice, the vernal equinox is the September equinox, the summer solstice is the December solstice, and the autumnal equinox is the March equinox. The dates of the March equinox range from the 19th to the 22nd of March, the dates of the June solstice range from the 19th to the 23rd of June, the dates of the September equinox range from the 21st to the 24th of September, and the dates of the December solstice range from the 20th to the 23rd of December. Examples of the earliest season start times are in 2096, and examples of the latest season start times are in 1903.

Use the electronegativity chart to determine the type of bond that will form between this pair of elements.

N + N