Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: June 5, 2025
As Ned entered, the door, pulled by a strong spring, swung after him. He held back his hand to prevent it from slamming, but there was no need, for a patent arrangement took up all the force, and the door closed gently. Ned looked around, not much surprised, for the same sort of door-check was in use at his bank. But a sudden idea came to him. "There you are, Tom!" he cried.
And to think that has been under my nose, or, rather, over my head, all this while, and I never thought of it. Hurray! That will solve the problem!" "Do you think it will?" asked Ned, glad that he had contributed something, if only an idea, to Tom's aerial warship. "I'm almost sure it will. I'll give it a trial right away." "What's in that door-check?" Ned asked.
There was considerable detailed figuring and computation work ahead of Tom Swift, and I will not weary you by going into the details of higher mathematics. Even Ned lost interest after the start of the problem, though he was interested when Tom took down the door-check and began measuring the amount of force it would take up, computing it on scales and spring balances.
In this door-check there may be a mixture of water, alcohol and glycerine, the alcohol to prevent freezing in cold weather, and the glycerine to give body to the mixture so it will not flow through the valves too freely." "And do you think you can put something like that on your guns, so the recoil will be taken up?" Ned wanted to know. "I think so," spoke Tom.
"Why not take up the recoil of the guns on your aerial warship by some such device as that?" and Ned pointed to the door-check. For a moment or two Tom Swift did not seem to comprehend what Ned had said. He remained staring, first at his chum, who stood pointing, and from him Tom's gaze wandered to the top of the door.
Word Of The Day
Others Looking