Tag Archives: meter

Determining an Exoplanet

Check out this recent report from NASA on an exoplanet named Fomalhaut b, which orbits a 200-million-year-old star [10+08] called Fomalhaut, every 872 years [10+02]: “A second look at data from NASA’s Hubble Space Telescope is reanimating the claim that the nearby star Fomalhaut hosts a massive exoplanet. The study suggests that the planet, named [...]

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Planets Beyond Our Solar System

Scientists have made an important discovery in their search for life outside of our solar system.  NASA announced yesterday that its Kepler mission discovered two planets, roughly the size of Earth, called Kepler-20e  and Kepler-20f. “They are the smallest exoplanets ever confirmed around a star like our sun.”  Part of a five-planet system called Kepler-20, [...]

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Orders of magnitude

Look at another example of distance based on the meter on a scale line – Erik Max Francis’ Orders of Magnitude: Distance. A Powers of 10 project would be to make your own scale line online.

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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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  • Countdown to Powers of Ten Day

    • 10/10/10 1508 days ago