Thought for the day...

SamR

Joined Mar 19, 2019
5,491
One of the things that we have learned from the various "Space Labs" is how much a change in gravity affects living organisms. Over the many years of evolution of life on this planet, there has been one constant factor in the enormous equation of life, gravity. Even a minute change in gravity has effects on living organisms.
 

BR-549

Joined Sep 22, 2013
4,931
I think that the exponential fall in gravity is what created the universe. We are still falling, but on the flat side of that fall. It's impossible for gravity to be constant.
 

WBahn

Joined Mar 31, 2012
32,883
One of the things that we have learned from the various "Space Labs" is how much a change in gravity affects living organisms. Over the many years of evolution of life on this planet, there has been one constant factor in the enormous equation of life, gravity. Even a minute change in gravity has effects on living organisms.
Then we should see these affects at different places on the Earth's surface since gravity is not the same over the entire surface and varies about about 0.7% from min to max.
 

nsaspook

Joined Aug 27, 2009
16,330
It is called the rare earth hypotheses. Look it up. Sagan and a few other scientists dispute it ( in Sagan's case did ;) ).
Sagan, as usual, was right on the money. It sounds more like a theological argument than a scientifically based hypotheses. Modern evidence from actual planets and stars seems to lead to theories that make this hypotheses unlikely.

https://dailygalaxy.com/2011/01/the...gic-and-math-says-were-not-alone-in-universe/

Recent figures place the total number of stars in the Milky way at an astounding three trillion. Which leads to this question, given such a ginormous figure, what does it mean to be rare? Even if the Earth is a one in a million occurrence, that means there are still 3 million Earthlike planets in the Galaxy (assuming one Earthlike planet per star).

On the other hand, if the Earth is a one in a billion occurrence, then there are still 3,000 Earths in the Milky Way.
...
Indeed, given all this evidence, the Rare Earthers are starting to come under attack. Leading the charge these days is Alan Boss who recently published, The Crowded Universe. Boss estimates that there may be billions of Earthlike planets in the Milky Way alone.

"I make the argument throughout the book that we already know that Earths are likely to be incredibly common—every solar-type star probably has a few Earth-like planets, or something very close to it," says Boss. "To my mind, at least, if one has so many habitable worlds sitting around for five billion or 10 billion years, it's almost inevitable that something's going to start growing on the majority of them."
 

nsaspook

Joined Aug 27, 2009
16,330
https://www.cbc.ca/news/canada/edmo...tc-3REgRnIqlzgo5URYXgMeBAsKwBMbLAx0pGDE04MkpU

Tubing enthusiasts are being warned to take precautions on the Pembina River, including knowing where they are headed.

"I've had a number of people tell me that they were under the impression that the river either ran in a circle or looped back around towards the provincial park," Evansburg RCMP Cpl. Brandon Tobin said in a news release Tuesday.

"This is false information. If you're planning on tubing on the river DO NOT enter the river at the provincial park campgrounds, I can't stress that enough. The park is where you must exit the river.

"If you enter the river at this location or float past the park, you WILL be stranded."
 

nsaspook

Joined Aug 27, 2009
16,330
I don't have a problem with sport hunting, trophy hunting or just plain killing pests like wild boar with machine-guns from helicopters if the prey is not endangered or protected. Much ado about very little.
 

nsaspook

Joined Aug 27, 2009
16,330
agreed ... but I also find it immoral to kill an animal (unless it's a pest) if one's not going to consume it, or use its skin, or give it some practical use other than just decoration.
Something being moral is a nebulous concept that includes aggressive cannibalism in some societies (that I have visited) so I try to avoid that rational for the things I do.
 

cmartinez

Joined Jan 17, 2007
8,776
Something being moral is a nebulous concept that includes aggressive cannibalism in some societies (that I have visited) so I try to avoid that rational for the things I do.
I know, morality is a very relative term. But there are some negative moral aspects of human behavior that are universal, like rape, or murder for profit... etc

It is not my intention to start a discussion on ethics (and we'd get nowhere anyway, without first recognizing the objective existence of good and evil... something that I have a feeling you'd also be objecting to) ... it's the culture of destruction of life for destruction's sake that I find abhorrent ...
 
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