http://docs.unity3d.com/ScriptReference/Rigidbody-position.html

"This is faster then updaten the position using Transform.position, as the latter will cause all attached Colliders to recalulate their positions relative to the Rigidbody.

If you want to continously move a rigidbody use MovePosition instead, which takes interpolation into account."

"faster then updaten" should be "faster than updating".
"recalulate their positions" should be "recalculate their positions".
"If you want to continously" should be "If you want to continuously".