Is there a unit of time bigger than Millennium that still measures years?

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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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Unit used for measuring time?

It would be the day, one rotation of the planet.. or 1 orbit around the sun (a year). any way you look at it those are our two constants

What unit of measurement is smaller than a nanometer?

SI Prefixes . One nanometer (nm) is equal to one billionth of a meter, or 0.000000001m. A picometer (pm) is one trillionth (millionth of a millionth) of a meter, or 0.000000000001m.. A femtometer (fm) is one quadrillionth (millionth of a billionth) of a meter, or 0.000000000000001m.. And so ( Full Answer )

What is the unit for measuring time?

ANSWER: . Millisecond, second, minute, hour, day, month, year, decade, century, millenium, eon and light year are the ones I can think of. Other unit measurers are called a pendulum, a stopwatch, a watch, a clock, a water clock, a pocketwatch, a grandfather clock, a sundial and an atomic clock.

Is United States bigger than China?

This has been a source of debate for quite some time. Many sources cite that the People's Republic of China is larger in size than the United States. Others say that the United States is larger (however, these sources include certain water areas, such as the Great Lakes, for the United States, but d ( Full Answer )

Is China bigger than the United States?

By land area, excluding the Great Lakes, the People's Republic of China is bigger. Including the Great Lakes, it is the opposite.

What is a millennium year?

Millenniums are 1000 years. Year: 1 Year Decade: 10 Years Century: 100 Years Millennium: 1000 Years "One Million Years?"

What is the millennium year?

Let's work this out together; by the end it will make sense. In a base ten systen (our numbering system based on the typicalnumber of digits humans have on their hands), we begin counting atthe number one, completing each set after ten. Like so: 1, 2, 3, 4,5, 6, 7, 8, 9, 10. After each set of ten, ( Full Answer )

What is the smallest unit of measurement in time?

They just divide up seconds, into milli- micro- nano- etc.. It's possible that the shortest interval of time is 10 to the -43 power seconds .... if time is discreet.. Further details: . The smallest measurable and meaningful unit of time is Planck time. In physics, this is equal to the time it t ( Full Answer )

What unit of measurement is bigger than an acre?

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.

What are the units of measurement in old time?

Body parts: the cubit (inside elbow to finger tip), the foot, the stride, the span (finger tip to finger tip) the inch was the thumb length the british stone was just that, a stone. A cup was what you could "cup" in your two hands.

What is the SI unit to measure time?

The SI unit of time is the "second". The second was originally defined as 1/86,400th of the mean solar day. Since 1967, the second has been defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of th ( Full Answer )

What are the measure units smaller than an inch?

An inch consists of 16 scale divisions (1/16, 2/16, etc.) If you consider metric system, then the smaller measure units would be centimeter (1 inch = 2.54 cm) and millimeter (1 cm = 10 mm).

What is the Metric unit for measuring time?

The second [ s ] And the multiples or decimal fractions afforded by the SI prefix system: yotta Y 1000000000000000000000000 zetta Z 1000000000000000000000 exa E 1000000000000000000 peta P 1000000000000000 tera T 1000000000000 giga G 1000000000 mega M 1000000 kilo k 1000 [hect ( Full Answer )

What are the different units for measuring time?

There are many of them. Here are a few: -- yoctosecond -- femtosecond -- picosecond -- nanosecond -- microsecond -- millisecond -- second -- minute -- hour -- day -- week -- fortnight -- year -- Century -- eon

Which unit is bigger in measurements the decimeter or the centimeter unit?

the decimeter unit is bigger than the centimeter unit. The prefix Deci means 1/10th the prefix Centi means 1/100th For a meter unit, the decimeter = 1/10th meter so 1 meter = 10 decimeter, and the centimeter = 1/100 meter so 1 meter = 100 cm Accordingly, 1 decimeter = 10 centimeter

Is there a bigger metric measurement than a kilometer?

In theory you could put any of the prefixes like "mega", "giga" etc. in front of "metre", and they would be valid units. A megametre would be bigger than a kilometre. But no-one normally uses megametre as a unit.

What is the unit in which you measure light year?

The "Light Year" is a unit. It has the dimensions of length or distance, just like the inch, foot, yard, meter, furlong, mile, and kilometer. It was invented at the time in the development of Astronomy when all of those other units resulted in ridiculously large numbers, and a new, longer unit w ( Full Answer )

A unit ight-year is a measure of?

The light-year is a measure of distance. It's the distance light travels in vacuum in one year. 5.8787 x 10 12 miles (rounded)

What measurements are bigger than kilometers?

There are 7 fundamental units in S.I system . . Thus ,for unit of length and mass and conversion ,the relationsare given .By the conversion table : . We can say that miles,light years and astronomical unitsare bigger than kilometers .

What unit of measurement is used when measuring time?

The most common unit of time used in science is the second. It varies depending on the field, though. Geology and cosmology may measure time the Ba, billions of years while a spectroscopist may use fs, femtoseconds, or 10^-15s.

Why do scientists measure distances to planets with astronomical unit rather than light year?

The whole purpose for choosing one unit instead of another unit is to avoid running into inconveniently large or small numbers. That's why the light year was invented. Using miles, the nearest star outside the solar system is 25,280,000,000,000 miles away, and the present radius of the obse ( Full Answer )

What is bigger a light year or an astronomical unit?

One light year is the distance that light travels in one year. One AU is the distance from the Sun to the Earth, approximately 8.3 light-MINUTES. A light-year is about 62,000 times larger than an AU.

How times is Spain bigger than Ireland?

Spain is bigger then Ireland . The total area of Spain is . Total area (sq km):. 505,991 and Ireland is . Total area (sq km):. 70,273 for more information please contact me. here at answers.com .

Why is a light year a unit of distance rather than time?

A light year is a distance measurement because it would take something a year travelling at the speed of light to cross. It is called a light year because it helps astrologers/scientists understand the vastness of the distance between two things; for example, Our Galaxy (The Milky Way Galaxy) and ou ( Full Answer )

Are there smaller units of measurement than milimeters?

no * * * * * Of course there are! 1 micrometre (or micron) = one thousandth of a millimetre, 1 nanometre = one millionth of a millimetre 1 picometre = one billionth of a millimetre 1 femto = one trillionth of a millimetre 1 attometre = one quadrillionth of a millimetre 1 zeptometre = one quint ( Full Answer )

What is twelve times bigger than earth?

The only thing I could think of an exoplanet about a size bigger than Jupiter because it is eleven times bigger than the Earth.

Why are the units used to measure time?

planck times picoseconds nanoseconds microseconds milliseconds seconds minutes hours days months years decades generations centuries millennia eras eons

Is time a unit of measurement?

Time is not a unit of measurement, but there are measurements that are done in units of time. Examples are seconds, minutes, hours, days, weeks, and years.

Is 1 millennium bigger or smaller than 10 centuries?

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.

Is Guyana bigger than United states?

Guyana is comparable to the size ofIdaho and Kansas. Guyana, Idaho and Kansas each have a total areaof approximately 83,000 square miles.