Isn’t this against the US constitution? Razor wire along the state border and checkpoints on roads that cross the state border are kind of nuts. I read a comment joking that the wire and road checkpoints were to keep Texan women from escaping to New Mexico, which got a bitter laugh out of me.
Just a thought, if an event happened well beyond the observable universe that caused entire galaxies to be destroyed radiating from a point source event, what would it look like from our perspective and how close could it get on our observable horizon while still being unable to reach us due to expansion of the universe?...
The US Army Corps of Engineers is planning to barge 36 million gallons of freshwater daily into the lower Mississippi River near New Orleans as saltwater intrusion from the Gulf of Mexico continues to threaten drinking water supply, officials said Friday....
Well that’s kinda the whole problem isn’t it? Yes, but by the time it reaches the water-processing intakes it’s already starting to mix with the [unseasonably far inland] salt water from the sea.
I got the new Sony 70-200 mm F4 Macro G OSS II and it’s amazing, even though very expensive. Anyway while looking at all those YouTube videos about it people were very often mention that it’s compatible with tele converters and you’d get basically double the size lens (with half the light) + 1.0 macro instead of 0.5....
“they market these bills as bills to save children. Now, I actually save children and I know what it means to save a child. I know what it means to support a child and support our own children. None of these bills have anything to do with saving children”
I saw that people on the dark web would sign their posts with a PGP key to prove that their account has not been compromised. I think I understand the concept of how private and public keys work but I must be missing something because I don’t see how it proves anything....
Key signing parties used to be the thing to do at conferences - imagine a line of people, sheets of paper listing all their key fingerprints, and people showing ID to each other.
So I was day dreaming and I caught a thought. What if what we understand about physics is actually all there is to understand? What if you objectively cannot move faster than the speed of light because you can’t do the time traveling things necessary. This would mean that the only way to travel amongst the stars would be to...
I have heard this mentioned several times with this exact wording, that faster than light travel would break/violate causality and I do not exactly understand why and how it would do that. Could someone more well-versed in physics explain to me why that would be the case? Or is it not the case? (Yes, I am fully aware, that...
Has anyone actually proven no violation of causality? Wikipedia seemed to suggest that it’s not physically impossible to have a wormhole, take one of the ends on a round trip so that it doesn’t age as much, and you’d be left with a situation where you can go in one end and come out in the past.
xkcd #2847: Dendrochronology ( imgs.xkcd.com )
xkcd.com/2847...
Woman returns from vacation to find family home mistakenly demolished ( www.theguardian.com )
Gov. Abbott is now putting barriers along Texas border with New Mexico ( news.yahoo.com )
Isn’t this against the US constitution? Razor wire along the state border and checkpoints on roads that cross the state border are kind of nuts. I read a comment joking that the wire and road checkpoints were to keep Texan women from escaping to New Mexico, which got a bitter laugh out of me.
If it were possible for some event to destroy the fabric of spacetime at the speed of light, could we still observe and be safe bc expansion?
Just a thought, if an event happened well beyond the observable universe that caused entire galaxies to be destroyed radiating from a point source event, what would it look like from our perspective and how close could it get on our observable horizon while still being unable to reach us due to expansion of the universe?...
Army Corps of Engineers to barge 36 million gallons of freshwater a day as saltwater intrusion threatens New Orleans-area drinking water | CNN ( www.cnn.com )
The US Army Corps of Engineers is planning to barge 36 million gallons of freshwater daily into the lower Mississippi River near New Orleans as saltwater intrusion from the Gulf of Mexico continues to threaten drinking water supply, officials said Friday....
Why are tele converters so extremely expensive? ( www.bhphotovideo.com )
I got the new Sony 70-200 mm F4 Macro G OSS II and it’s amazing, even though very expensive. Anyway while looking at all those YouTube videos about it people were very often mention that it’s compatible with tele converters and you’d get basically double the size lens (with half the light) + 1.0 macro instead of 0.5....
One of Louisiana's only pediatric heart transplant doctors is moving because of anti-LGBTQ laws ( www.motherjones.com )
FTA:...
How does a signing a post with a pgp key prove that you are actually the person behind the post?
I saw that people on the dark web would sign their posts with a PGP key to prove that their account has not been compromised. I think I understand the concept of how private and public keys work but I must be missing something because I don’t see how it proves anything....
What if solving interstellar travel isn't about figuring out faster than light propulsion, but how to extend our own lives?
So I was day dreaming and I caught a thought. What if what we understand about physics is actually all there is to understand? What if you objectively cannot move faster than the speed of light because you can’t do the time traveling things necessary. This would mean that the only way to travel amongst the stars would be to...
Does faster than light travel violate causality? Why/Why not? How?
I have heard this mentioned several times with this exact wording, that faster than light travel would break/violate causality and I do not exactly understand why and how it would do that. Could someone more well-versed in physics explain to me why that would be the case? Or is it not the case? (Yes, I am fully aware, that...