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EnolaGaia

EnolaGaia

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Swifty

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Trust John Lydon to upstage corona virus.
 
EnolaGaia

EnolaGaia

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Ruh-roh ... :willy:

Our Solar System Is Going to Totally Disintegrate Sooner Than We Thought

Although the ground beneath our feet feels solid and reassuring (most of the time), nothing in this Universe lasts forever.

One day, our Sun will die, ejecting a large proportion of its mass before its core shrinks down into a white dwarf, gradually leaking heat until it's nothing more than a cold, dark, dead lump of rock, a thousand trillion years later.

But the rest of the Solar System will be long gone by then. According to new simulations, it will take just 100 billion years for any remaining planets to skedaddle off across the galaxy, leaving the dying Sun far behind. ...

FULL STORY: https://www.sciencealert.com/our-so...o-totally-disintegrate-sooner-than-we-thought
 
IbisNibs

IbisNibs

Exotic animal, sort of . . .
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"Sex Pistols star John Lydon bitten by flea on his penis after befriending squirrels"
How is this newsworthy? How is it newsworthy?!!?

EnolaGaia said:
Black holes may not exist, but fuzzballs might, wild theory suggests
Click to expand...
Yes, fuzzballs do exist, and they are all under my bed.
 
EnolaGaia

EnolaGaia

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Angel, devil and blood-red heart appear at Martian south pole

It's summer at the south pole of Mars, and the angels and devils are coming out to play. You can see them both in a stunning new image of the recently thawed pole, taken by the European Space Agency (ESA). ...
FULL STORY: https://www.livescience.com/martian-angel-satellite-image.html
 
EnolaGaia

EnolaGaia

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kamalktk

kamalktk

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EnolaGaia said:
My guess is "no", because the canonical 'Pioneer anomaly' alludes to the spacecrafts' rate of acceleration rather than any deviation in trajectory.
Click to expand...
Acceleration is a change in trajectory. A moving target that you would have hit, but dont because you speed up, would be an example. In this case a space probe would be in a slightly different location vis a vis gravity wells, which would have an effect.

Similar to the spin of an object that does not have its center of gravity in the middle. The center of gravity of a probe could be very slightly farther or closer than the expected distance, resulting in the gravitational attraction between the probe and the solar gravity well being oh so slightly different than expected, which would affect velocity.
 
EnolaGaia

EnolaGaia

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When I alluded to trajectory I was referring to a path followed. I've never heard of velocity / speed being considered an intrinsic or defining component of a trajectory, though it's certainly true velocity can help determine a trajectory's characteristics (e.g., distance thrown or flown)
 
kamalktk

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EnolaGaia said:
When I alluded to trajectory I was referring to a path followed. I've never heard of velocity / speed being considered an intrinsic or defining component of a trajectory, though it's certainly true velocity can help determine a trajectory's characteristics (e.g., distance thrown or flown)
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I'm sure my wording/phrasing is incorrect, hopefully the idea was clear.
 
Trevp666

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It was like that when I got here.........honest!!!
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EnolaGaia said:
When I alluded to trajectory I was referring to a path followed. I've never heard of velocity / speed being considered an intrinsic or defining component of a trajectory, though it's certainly true velocity can help determine a trajectory's characteristics (e.g., distance thrown or flown)
Click to expand...
It all sounds like a load of ballistics to me.
 
EnolaGaia

EnolaGaia

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Massive Prehistoric Crocodile “Swamp King” Emerges From South East Queensland

A prehistoric croc measuring more than five metres long — dubbed the ‘swamp king’ — ruled south eastern Queensland waterways only a few million years ago.

University of Queensland researchers identified the new species of prehistoric croc — which they named Paludirex vincenti — from fossils first unearthed in the 1980s. ...

FULL STORY: https://scitechdaily.com/massive-pr...wamp-king-emerges-from-south-east-queensland/
 
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