|
Tractor Talk Discussion Board |
Re: Re: O/T for you science buffs
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Steve - IN on November 07, 2003 at 17:35:07 from (12.222.30.13):
In Reply to: Re: O/T for you science buffs posted by rhudson, negating air fri on November 07, 2003 at 16:12:22:
It's not a fact. That science teacher violated Newton's 3rd law and ought to be sent to physics jail. Here's why: Consider this: Two Apollo space craft, both in the vacuum of space. Both have just slingshoted around the moon. One fires a rocket (pulled the trigger on the rifle) the other does not, and just relies upon Earth's gravity for its return. Which one gets home first? The one that fired the rocket, of course. Both have Earth's gravity pulling them, both are in a vacuum; but the rocket powered one has used Newton's 3rd -- every action results in an equal and opposite reaction --and gets home first. End of story. The speed of the rifle bullet leaving the tube against gravity is about 10 times greater than the speed of the bullet falling to Earth, propelled only by gravity. That's real simple. Also consider this: Cmdr Dave Scott, on the moon, 1971. Drops a hammer and a falcon feather at the same time. Near perfect vacuum. The feather hits a tad later than the hammer -- greater mass in the hammer. Galileo was right -- 400 years earlier. Speed of light. We leave Newton and enter Einstein territory. If E=MC squared, then at the speed of light, you're pure energy anyway, and don't see a thing. Assuming you're not pure energy, you neurons don't run faster than light speed anyway, so you don't notice any difference in anything you see from one moment to another, as everything is constant.
Follow Ups:
Home
| Forums
Today's Featured Article -
The Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|
