re: Beating Newton's Law

From: Amara Graps (amara@amara.com)
Date: Fri Feb 28 2003 - 10:04:47 MST

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    Serafino:
    >Written by Jack Wisdom of MIT, the highly mathematical and
    >complicated paper reveals a motion similar to when one is sitting on
    >a swivel chair and by thrusting one's arm in specific directions,
    >one can make the chair turns. It is the same effect that happens
    >when a cat falls down and lands on its feet - by twisting its torso.

    conservation of momentum? I wish I knew what he was talking about.
    This could be interesting.

    Jack Wisdom is very good- he is best known for his symplectic integrators
    in Nbody problems (celestial mechanics, hamiltonian systems)

    http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?db_key=AST&db_key=PRE&sim_query=YES&aut_xct=NO&aut_logic=OR&obj_logic=OR&author=Wisdom%2C+Jack&object=&start_mon=01&start_year=1990&end_mon=&end_year=&ttl_logic=OR&title=&txt_logic=OR&text=&nr_to_return=100&start&jou_pick=ALL&ref_stems=&data_and=ALL&group_and=ALL&sort=SCORE&aut_syn=YES&ttl_syn=YES&txt_syn=YES&aut_wt=1.0&obj_wt=1.0&ttl_wt=0.3&txt_wt=3.0&aut_wgt=YES&obj_wgt=YES&ttl_wgt=YES&txt_wgt=YES&ttl_sco=YES&txt_sco=YES&version=1

    http://www.amara.com/papers/nbody.html#symp 

    -- 
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Amara Graps, PhD          email: amara@amara.com
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