According to Wikipedia (http://www.reference.com/browse/wiki/Annum) megaannum, usual symbol Ma, is a unit of time equal to one million (106) years. It is commonly used in scientific disciplines such as geology, Paleontology, and celestial mechanics to signify very long time periods in the past. For example, the dinosaur species Tyrannosaurus rex was abundant approximately 65 Ma (65 million years) ago (ago may not always be mentioned; if the quantity is specified while not explicitly discussing a duration, one can assume that "ago" is implied; "mya" includes "ago" explicitly.). In astronomical applications, the year used is the Julian year of precisely 365.25 days.
* gigaannum, usual symbol Ga, is a unit of time equal to one (short scale) billion (109) years. It is commonly used in scientific disciplines such as cosmology and geology to signify extremely long time periods in the past. For example, the formation of the Earth occurred approximately 4.57 Ga (4.57 billion years) ago. * exaannum, usual symbol Ea, is a unit of time equal to (1018) years (one quintillion on the short scale, one trillion on the long scale). It is an extremely long unit of time. The half-life of tungsten-180 is 1.8 Ea.
yes he is 66 years old and still writes books!!
Rugrats Still Babies After All These Years - 2001 TV was released on: USA: 21 July 2001
obviously not he would be 483 years old in dog years. obviously not he would be 483 years old in dog years.
It's been at the bottom of the North Atlantic for 104 years.
They should get bigger. I am 24 years old and mine are just really starting to grow. But dont worry. Genetics is what decides how big or little you are going to be. Be happy with yourself:)
1 millennium = 1000 years 1 century = 100 years → 10 centuries = 10 x 100 years = 1000 years → 1 millennium is neither bigger nor smaller than 10 centuries - 1 millennium is the same as 10 centuries.
There are 1,000 years in a millennium.1000 years is called as a millennium.
No because they are both the same inasmuch that a 1/4 of a 1000 years = 250 years
There are 1,000 years in a millennium
A millennium is 1,000 years
A millennium is a thousand years, so a half-millennium is five hundred years.
A millennium is a thousand years, so a half-millennium is five hundred years.
A millennium is a thousand years, so a half-millennium is five hundred years.
A century is 100 years. A millennium is 1000 years. There are 10 centuries in a millennium.
how many years are in a millenium There are 1,000 years in a millennium (one thousand years).
there are one thousandth of years in a millennium.
There are a 1,000 years in a millennium