I already know flaming is coming.
if that water rushed down – if could affect the Earth’s axis and rotation, just as the Tsunami did in 2004.
Originally posted by SonicInfinity
reply to post by badmedia
It's kinda funny to me now. 90% of the time before I click on a topic, I know whether questioningall made it or not. Then, I click on the topic, read the usual stuff, roll my eyes, and have to actually tell myself "okay, read this with an open mind." Then, I get to the end, and I feel like I read nothing at all.
Okay, let's say for a second that there's a conspiracy that it was built on purpose or for a specific, destructive purpose.
What if it was? I can understand if you were rallying up some people to write letters or start protests against these people, but what good is it going to do to argue about it on a message board other than to earn you flags and stars? If it's true what they are doing is bad, then nothing short of a giant mass of people living in the area will stop it. I find all this arguing about its purpose to be nothing but fluff. I wouldn't even mind the fluff if you kept it in one topic, but you keep making topic after topic, and day after day, I see a topic of yours on the front page -- all of which preaching some doomsday scenario.
I agree with badmedia. Why is it that popularity carries over on this site, but not credibility? Why do topics dealing with important issues get next to no flags, yet topics full of fluff get tens and hundreds? It's bewildering.
[edit on 7/21/2009 by SonicInfinity]
Originally posted by SaraThustra
The Sun is extremely massive, but it is an average of 93 million miles (150 million km) from Earth... the Moon is nearly 400 times closer to our planet, (so) its influence on our oceans, land, or anything else, is twice as strong as the Sun's.
F = G.mS.mE/r^2
5.33G x 10^32N (newtons)
2.98G x 10^30 N
If they pull in tandem, as during an eclipse, the force is combined which is the whole point. If the dam is unable to contain the greater force, the dam will break.
3.55 x 10^4 kg
Confirming that air-mass movement in fact happens,
hourly data recorded on the day of the 1999 eclipse from a
site in the partial eclipse zone ~north latitude 38.1°, east longitude
20.6°, maximum eclipse magnitude 80%) shows that
atmospheric pressure increased sharply by at least 0.6% during
the eclipse ~from 979 to 985 g/cm2), returning to preeclipse
levels afterward @6#. ~See Fig. 2.! Unfortunately, the
hourly data does not have very good time resolution, and is
for a location roughly 700 km from the path of totality. But it
gives important clues about the magnitude of the air mass
From the kinetic theory of gases, for any given rms speed
of air molecules v¯ and air density r , pressure p is given by
rv¯ 2. ~This is because pressure changes affect all three
dimensions, so the pressure change in one dimension, such
as downward, is reduced by a factor of three @7#.! If we
differentiate this pressure formula, divide by the original formula,
and rearrange terms, we get a relation between percentage
changes: d r /r5d p/p22d v¯ /v¯ . We do not have
measurements of v¯ during the eclipse, but it varies with the
square root of absolute temperature, which obviously goes
down during the eclipse. If we assume v¯ drops by the same
0.6% change as the pressure rises, this would imply a net
change in air density of 1.8%. Other physically reasonable
assumptions can lead to percentage changes in air mass ranging
from 1.2% to 2.4%; but we will use this median value of
1.8% for our further analysis.
Simple reasoning suggests that the cooler air inside the
eclipse zone will decrease in volume ~increasing in density!
in accord with Boyle’s law as its temperature drops, creating
a ‘‘low’’ pressure region with the unusual character that it
would extend to great altitudes. This leaves room for warmer
air from outside the eclipse zone on all sides of the advancing
shadow of the Moon to flow rapidly into the eclipse zone
and fill the volume emptied by the cooler, denser air there.
This is what happens on a smaller scale across meteorological
fronts. When ‘‘highs’’ and ‘‘lows’’ collide, winds are created
that attempt to equalize those discordant pressures. Note
that for eclipses, the redistribution of air mass would affect
broad areas well outside the eclipse zone through this process
because those areas are the reservoir from which the
extra air mass would be drawn.
. Geometry of Earth’s atmosphere near a particular place.
O5 Earth’s center; P5 observation place; Q5 point in atmosphere;
r5 Earth’s radius; z5 height of atmosphere point Q above
ground; q5 distance from P to Q. a and b are angles of the triangle
at O and P, respectively.
If r is the radius of the Earth
and q is the distance from point P to point Q, then the distance
from O to Q is r1z. We will also need the two angles
Q-O-P5a and Q-P-O5b. An element of atmosphere with
mass dm at point Q will exert an acceleration on point P of
magnitude da5Gdm/q2, directed toward the mass element,
where G is the universal gravitational constant. We can resolve
this into horizontal and vertical components and integrate
over all mass elements in the whole atmosphere or any
subset of them to get the total acceleration caused by the air
For computation, we adopt these numerical values: G
56.67231028 cm3/g s2 ~universal gravitational constant!,
r56.373108cm ~radius of the Earth!, r 051.2931023
g/cm3 ~mean sea level density of dry air at standard temperature
and pressure!, h58.53105cm ~scale height at a typical
surface temperature of 16 °C) @8#. g511.0 ~its maximum
value!. From these, we derive the value az54.6
31024 cm/s2, which is the upward-directed gravitational acceleration
of the observer due to the atmosphere above his
Originally posted by Darthorious
The sad part about all of this is and not even mentioned or thought of by China?
They go to war with another country a couple well placed bombs and they could wipe out a 1/3 of the population in a worse case scenario.
Heck the distraught farmers my get themselves some nano-thermite and just do it themselves.
I'm really surprised they never considered this unless the 1/3 of the population that lives there they don't really care about.