_TIT_Measurement Notes_CLASS_key
TODO: add range, mean, etc.
_REF_/read.cgi?FILE=Locked/media/lab/measure/data.txt&EDIT=1&NOALERT=1&ROWS=24&COLS=4 heights.
Alcohol (ethanol) thermometer, in 10 units.
1" = 2.54 cm;
1"2 = 2.542 = 6.45
8.5"=21.59cm
11.0"=27.84cm
bargraph=compare
_WWW_onlineconversion.com/area.htm Surface area
_HTP_users.tpg.com.au/doktormj/kilograms2pounds.htm kilograms2pounds
_HTP_hyperphysics.phy-astr.gsu.edu/hbase/surten.html Water
cohesion/adhesion: capillary action due to electrostatic (van der Waals) forces.
_HTP_chemed.chem.purdue.edu/genchem/topicreview/bp/ch14/property.html Meniscus
formed by adhesion of water to negatively charged oxygen atoms in glass.
Hindu 500 AD invented zero.
3 tsp (4 in Australia) = 1 tblsp; 8 fl oz (237 ml, 250 in Australia, NZ, Canada) = 1 cup
Metric system: French Academy of Sciences after the French Revolution (250,000 units of measurement under the monarchy).
Enlightenment: science, logic, mathematics.
_HTP_wwwhome.cs.utwente.nl/~jagersaa/Werkmap/In_Measure.html Units:
_HTP_physics.nist.gov/cuu/Units/meter.html International System of Units (SI):
first prototype meter kept at _WWW_www.bipm.org/ BIPM
was short by 0.2 millimeters: miscalculated flattening of earth due to rotation.
_HTP_parisvoice.com/00/july/html/feature/picnic.cfm Picard
1655 astronomer measured length of a degree of longitude.
_HTP_archives.cnn.com/2002/SHOWBIZ/books/12/02/alder.measure/ Delambre and Mechain:
1792 measured the arc of a meridian from Dunkirk to Barcelona.
meter=1/10 millionth distance from pole to equator through Paris.
1983: light in vacuum 299,792,458 meters.
10 trillion cells (p. 106); 10 million olfactory receptors.
Average hair cell is 10 um - total 10**8 m long = 100K km. Earth circumference 40K km: 2.5 times around.
Moon 384K km, Sun 150M km.
Start as egg (zygote) in uterus. "Chicken or the egg" question misses the point:
zygote is the start of the chicken, before the egg, there was no chicken, there was mother hen, father rooster.