THREE:Third. Reaction wheels, that are "enclosed," as it is termed, and filled with water, which is allowed to escape under pressure through tangental orifices, the propelling force being derived from the unbalanced pressure within the wheel, or from the reaction due to the weight and force of the water thrown off from the periphery.Since Dick had already given the man a sidelight on Jeffs character by mentioning his superstitions, it occurred to Sandy that he might learn, from the strangers reply, how well he knew Jeff.
FORE:"It is not as a patient I came," he said. "I take the liberty to occupy some of your valuable time. If you are in one hurry--"
Offer Available till Sunday 12 Nov 2014.
Add To Cart