Tag Archives: length

7 (International System of Units [SI] base units)

The International System of Units (SI) is founded on seven SI base units for seven base quantities assumed to be mutually independent, as given in Table 1. Here is the SI list from the NIST reference on Constants, Units and Uncertainty. Table 1.  SI base units SI base unit Base quantity Name Symbol length meter [...]

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(Atomic number) 36 (Krypton and the history of the meter)

Photographs of Krypton Gas and Krypton Plasma: From Jefferson Lab Left – Krypton gas in a sealed glass tube. Center – A Tesla coil is used to excite the atoms in the gas, creating a plasma. Right – A longer exposure of the plasma with all of the room’s lights turned off. —————————————————————————— Of course, [...]

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Found: bird’s egg

Photo: Lucia Eames Scale of the child to the egg: Height of child:    42″ or 106.68cm (100) Length of egg:     .8″ or 2 cm (10-1) 1″ = 2.54cm

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  • Countdown to Powers of Ten Day

    • 10/10/10 1505 days ago