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But how does the man in the chest regard the Process? The

acceleration of the chest will be transmitted to him by the

reaction of the floor of the chest. He must therefore take up

this pressure by means of his legs if he does not wish to be laid

out full length on the floor. He is then standing in the chest in

exactly the same way as anyone stands in a room of a home on our

earth. If he releases a body which he previously had in his land,

the accelertion of the chest will no longer be transmitted to

this body, and for this reason the body will approach the floor

of the chest with an accelerated relative motion. The observer

will further convince himself _that the acceleration of the body

towards the floor of the chest is always of the same magnitude,

whatever kind of body he may happen to use for the experiment._