[IAEP] Gravity for Beginners...

[Edward Cherlin]

> If the kids could really measure accurately,

which can be done with a high quality pendulum,

> they would find that the
> acceleration is not actually constant, but differs by about one part in a
> million from 14 feet above the ground and at the ground level (due the more
> accurate inverse square Newton "Law").

And if they had access to atomic clocks, they could observe the
difference in the rate of passage of time at higher and lower
altitudes, which are of practical importance in the clocks on GPS
satellites. Measuring the deviations from Newton's Law in a falling
object near the surface of the Earth requires greater precision than
is available. It is observable with great difficulty in the precession
of the orbit of Mercury around the Sun, and more clearly in binary
pulsar systems.

> Please don't hesitate to ask questions.
>
> Cheers,
>
> Alan
>
> ________________________________
> From: Walter Bender <walter.bender at gmail.com>
> To: Jeff Elkner <jeff at elkner.net>
> Cc: iaep at lists.sugarlabs.org
> Sent: Sat, March 20, 2010 12:41:01 PM
> Subject: Re: [IAEP] Gravity for Beginners...
>
> kino will let you export your movie as a series of stills... I am sure
> there are many Free multimedia programs with a similar capability.
>
> regards.
>
> -walter
>
> On Sat, Mar 20, 2010 at 3:17 PM, Jeff Elkner <jeff at elkner.net> wrote:
>> Hi All,
>>
>> I'm working on a derivative version of "Gravity for 10 Year Olds" to
>> use with my high school age students, which I'm calling "Gravity for
>> Beginners":
>>
>>
>> https://docs.google.com/Doc?docid=0ARq50A7-FeDXZGd2MnN0ODJfMjAwNmc0NHF4ZHI&hl=en
>>
>> Day 2 has the following:
>>
>> "Show the students how to overlay frames from their videos to get this
>> effect:"
>>
>> Can anyone point me to easy instructions on how to do this?  I can't
>> really use the lesson without it.
>>
>> Thanks!
>>
>> jeff elkner
>> _______________________________________________
>> IAEP -- It's An Education Project (not a laptop project!)
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>> http://lists.sugarlabs.org/listinfo/iaep
>>
>
>
>
> --
> Walter Bender
> Sugar Labs
> http://www.sugarlabs.org
> _______________________________________________
> IAEP -- It's An Education Project (not a laptop project!)
> IAEP at lists.sugarlabs.org
> http://lists.sugarlabs.org/listinfo/iaep
>
>
> _______________________________________________
> IAEP -- It's An Education Project (not a laptop project!)
> IAEP at lists.sugarlabs.org
> http://lists.sugarlabs.org/listinfo/iaep
>



-- 
Edward Mokurai (默雷/धर्ममेघशब्दगर्ज/دھرممیگھشبدگر ج) Cherlin
Silent Thunder is my name, and Children are my nation.
The Cosmos is my dwelling place, the Truth my destination.
http://www.earthtreasury.org/