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Topic: A Replacement For Gravity? Post ReplyPost New Topic
Robbie Parry
Byrne Robotics Member

Joined: 17 June 2007
Location: United Kingdom
Posts: 12187
Posted: 10 October 2018 at 4:20am | IP Logged | 1 post reply

Haven't bought the latest issue of ALL ABOUT SPACE yet, but it's out today:

A replacement for gravity?!!!

Never before have I been so intrigued by an astronomy magazine cover (I buy ASTRONOMY, SKY & TELESCOPE, and ALL ABOUT SPACE, all of which have intriguing headlines).

I'll have a read. And maybe a browse on the internet after. But "A Replacement For Gravity" is a most interesting headline.
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Mario Ribeiro
Byrne Robotics Member

Joined: 18 June 2016
Location: Brazil
Posts: 390
Posted: 10 October 2018 at 5:52am | IP Logged | 2 post reply

Haven't read it, but...

Once I heard that gravity came from another dimesion, and the "proof" was that it was such a weak force (you can beat it with a simple jump). Don't remember the details (cause, come on), and I did try to explain that it was about Earth's mass, and how gravity was "stronger" in other planets and that we couldn't live on those, and that we are not actually "beating" gravity with our jumps or planes. It had the expected effect.

Edited by Mario Ribeiro on 10 October 2018 at 5:56am
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John Byrne
Imaginary X-Man

Joined: 11 May 2005
Posts: 119900
Posted: 10 October 2018 at 7:03am | IP Logged | 3 post reply

When we jump into the air, we "defeat" gravity locally -- ie, for us -- but we are doing so not against the patch of ground beneath our feet, but against the whole planet.

Gravity is a weak force, but it'll do!

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Jeffrey Rice
Byrne Robotics Member

Joined: 10 September 2011
Location: United States
Posts: 933
Posted: 10 October 2018 at 7:29pm | IP Logged | 4 post reply

When we can leap several miles at a time I will call gravity weak. I appreciate not being flung out into space.

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