Is there a unit of time bigger than Millennium that still measures years?
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.
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The hectare is 10,000 square meters. An acre is about 4,047 square meters, so there are about 2.47 acres in a hectare.. Certainly there are other units of area measure that… are larger. There are 640 acres in a square mile.
The unit of length that is 10 times larger than a millimeter isknown as a centimeter. 1 cm = 10 mm. It is a very common unit ofmeasure in the metric system.
Japan is approximately 1.5 times bigger than United Kingdom.
a megameter. equal to 1000000 meters. u can also use league which is equal to 3 miles
Spain is a little more than twice the size of the UK.
Uh, I believe (in order from least to greatest time) that there are Epochs, Periods, Eras, and Ages.
Efficiency. It's easier to say ' 10 kilometers' than it is to say '10,000 meters.'
1 millennium = 1000 years 1 century = 100 years â 10 centuries = 10 x 100 years = 1000 years â 1 millennium is neither bigger nor smaller than 10 centuries - 1 m…illennium is the same as 10 centuries.
Longer periods were given in lifetimes or generations (saecula,aion), period, used by Al-Biruni around AD 1000, and by Roger Baconin the 13th century.
No because they are both the same inasmuch that a 1/4 of a 1000 years = 250 years