## PSN-L Email List Message

Subject: Re: Man Made Quake
From: ian ian@...........
Date: Sat, 01 Apr 2006 19:36:36 +0100

```conservation of angular momentum might also influence things even if the
orbit was changed (temporarily).  Kepler's laws of motion are kind of
against you too.  You also have a cancellation effect caused by the
jumping forces being on opposite sides of the planet, sort of.

It's more like 1st of April stuff, though to set up a website just for
that is a bit extreme...

Ian

ChrisAtUpw@....... wrote:

> In a message dated 01/04/2006, allan.coleman@............ writes:
>
>     Talking of capturing planned "bumps", mark this one on your
>     calendar also.
>     http://www.worldjumpday.org/
>
>     Comments, thoughts etc from anyone on this event?
>
> Hi Allan,
>
>     The Earth's mass is app 6.10^24 kg. The population is 6.6.10^9. If
> the average weight were (guess) 50 kg, this would make 3.3.10^11 kg.
> This gives a ratio of 1.8.10^13 which is slightly small.
>     Perhaps one should look at what other motives there could be for
> promoting this event?
>
>     Regards,
>
>     Chris Chapman

conservation of angular momentum might also influence things even if
the orbit was changed (temporarily).  Kepler's laws of motion are kind
of against you too.  You also have a cancellation effect caused by the
jumping forces being on opposite sides of the planet, sort of.

It's more like 1st of April stuff, though to set up a website just for
that is a bit extreme...

Ian

ChrisAtUpw@....... wrote:

In a message dated 01/04/2006, allan.coleman@............ writes:
Talking of capturing planned "bumps", mark this one on your
calendar also.
http://www.worldjumpday.org/

Comments, thoughts etc from anyone on this event?

Hi Allan,

The Earth's mass is app 6.10^24 kg. The population is
6.6.10^9. If the average weight were (guess) 50 kg, this would make
3.3.10^11 kg. This gives a ratio of 1.8.10^13 which is slightly small.
Perhaps one should look at what other motives there could be
for promoting this event?

Regards,

Chris Chapman

```

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