September 8, 1998

1
September 8, 1998
Comments Email fears and concerns
Phone/Fax in office 887- Pre-Test
problems The BIG BANG.. That first second E
m c2 Energy to Quarks charges 2/3 and
-1/3 Strong Force acts 10 -15 meters
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September 8, 1998 2
Formation of Protons, Neutrons, Particles and
Anti-particles Formation of Electrons and
Positrons Electrical Forces F k Q q /
r2 Formation of Atoms Molecules Gravitational
Forces F G M m / r2 Formation of Quasars,
Galaxies, Solar (Polymer Fun)
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September 8, 1998 3
Evidences for what we know Telescopes
Existence of galaxies.. velocities ,
expansion, age Accelerators elementary
particles, energies, bonds, quarks Sizes of
small spaces 10-18 -- 10-15 -- 10-10
m Filling Empty Space Shrinking the Earth
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September 8, 1998 4
About how many neutrons COULD fit within the
volume occupied by one atom? _______________
10-10m
10-10m
10-15m
10-10m
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September 8, 1998 5
Models of the Universethe Laws of
Nature Earth Centered Aristotle,
Ptolemy Earth, Water, Air, Fire..
Falling Cycles in cycles Sun Centered
Coepernicus, Keplers Empirical
Laws Ellipses, Areas, Periods Galileos
Experimental Laws Inertia, Falling
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September 8, 1998 6
Motion of Objects in Gravitational Field Cone
Cuts Curved Space Motions in Our Solar
System Sun, Earth Moon Periods Sun around
galaxy Stars around earth... Earth around sun,
spin, seasons Phases of moon, planets
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September 8, 1998 7
1 light year 3 x 108 meter/sec x1 year x
365 day/year x 24 hour/day x 60 min/hr x 60
sec/min 9.5 x 1015 meters
9,500,000,000,000,000 meters Nearest star 4.3
light years
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8
Strong.Electro-weak.Electricity. Gravity
Quasars 1010 ly away
Stars Galaxies 4 - 4x108 ly away
Space
Hydrogen Helium
Quarks
Protons Neutrons
Earth
Light Cone
Time
Big Bang
Now
---------------------15 Billion
Years---------------------