should be in your physics book. Usually the first chapter.

If you don’t have your book, try these sites out.

http://lamar.colostate.edu/~hillger/common.html

http://www.mathleague.com/help/metric/metric.htm

Hope it helps.

Aum or Om, is universal mantra, when Brahma came from, Hiranyagarbha, he found nothing but darkness every where, and the only sound he heard was OM,..a voice told him to do meditation on it and, yes, there are mantras with and without Aum!! In Puranic Hinduism, Aum is the mystic name for the Hindu Trimurti, and represents the union of the three gods, viz. a for Brahma, u for Vishnu and m for Mahadev which is another name of Shiva. The three sounds also symbolize the three Vedas (Rigveda, Samaveda, Yajurveda). According to Hindu philosophy, the letter A represents creation, when all existence issued forth from Brahma’s golden nucleus; the letter U refers to Vishnu the God of the middle who preserves this world by balancing Brahma on a lotus above himself, and the letter M symbolizes the final part of the cycle of existence, when Vishnu falls asleep and Shiva has to breathe in so that all existing things have to disintegrate and are reduced to their essence to him. More broadly, Aum is said to be the primordial sound that was present at the creation of the universe. It is said to be the original sound that contains all other sounds, all words, all languages and all mantras. The Katha Upanishad: “The goal, which all Vedas declare, which all austerities aim at, and which humans desire when they live a life of conscience, I will tell you briefly it is Aum” “The one syllable [evākṣara, viz. Aum] is indeed Brahman. This one syllable is the highest. Whosoever knows this one syllable obtains all that he desires. “This is the best support; this is the highest support. Whosoever knows this support is adored in the world of Brahma.” (1.2.15-17) The Bhagavad Gita (9.17)has: Krishna says to Arjuna – “I am the father of this universe, the mother, the support and the grandsire. I am the object of knowledge, the purifier and the syllable Oḿ. I am also the Ṛg, the Sāma and the Yajur Vedas.”

length meter m

mass kilogram kg

time second s

electric current ampere A

thermodynamic temperature kelvin K

amount of substance mole mol

luminous intensity candela cd

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Table 5. SI prefixes

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Factor Name Symbol

1024 yotta Y

1021 zetta Z

1018 exa E

1015 peta P

1012 tera T

109 giga G

106 mega M

103 kilo k

102 hecto h

101 deka da

10-1 deci d

10-2 centi c

10-3 milli m

10-6 micro µ

10-9 nano n

10-12 pico p

10-15 femto f

10-18 atto a

10-21 zepto z

10-24 yocto y

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