Everything posted by Genady
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An example of self correcting science
“Science should be about the open questions that everyone is trying to solve, and not about who was right and who was wrong,” said Dr Julia Bodensteiner, a co-author of the study from the ESO who proposed the “vampire star” explanation. Black hole that was closest yet found does not exist, say scientists in U-turn | Black holes | The Guardian
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Is Torture Ever Right ?
This question is OT. There is a Psychiatry forum for this, I think.
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Is Torture Ever Right ?
I hope you know that, just like so many other "quotes" from Einstein, Einstein never said that. Einsteins insanity quote (alternatememories.com)
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Time
The age of the universe in cosmology is referred to in the comoving reference frame, which would be time of the observer who is at rest relative to CMB.
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Why is a fine-tuned universe a problem?
Hence, if somebody (e.g. @eric in a post above) claims that the fact of not detecting sparticles in LHC refutes string theory, this claim is equally valid to all SS theories, not only the string theory? Or, other SS theories predict much heavier sparticles to begin with?
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Why is a fine-tuned universe a problem?
OK, there is no string theory without SUSY. Is there SUSY without string theory? If so, does it predict sparticles independently of the string theory?
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Why is a fine-tuned universe a problem?
AFAIK sparticles are predicted by SUSY rather than string theory, aren't they?
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Can self replicating robots ever be invented?
lol
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Members' participation
It is skewing the stats. Talking of WTC. I was there on 9/11 at 9am.
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Members' participation
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2019/2020 Catastrophic bushfires: 2022 Worst east coast floods in memory.
“Any further delay in concerted global action will miss a brief and rapidly closing window to secure a liveable future.” IPCC issues ‘bleakest warning yet’ on impacts of climate breakdown | Climate crisis | The Guardian
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Why is a fine-tuned universe a problem?
I don't have any attachment to the string theory. Just curious, what do you refer to in "a decade after [it] was proven wrong"? The LHC experiments?
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GR and cosmology (split from …A Shrinking matter theory that might actually work.)
GR equations - not words - show how it happens.
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The myth of invasive lionfish
Well, I was not talking about seasonal variations, but rather about changes in populations from year to year. And, being a (former) SCUBA instructor with about 3000 logged dives, I see the "invasion" first hand. The bottom line, what I see here is very different from what you describe. Maybe the process is just different in different parts of the ocean, but here we don't see these disturbing things. The lionfish seems to be just another fish in our "aquarium". BTW, there are many native fishes that are not preyed on by other native predators. For example, nothing eats adult green morays, barracudas, jacks, scorpionfish, rays. This is not something that is special about lionfish, not a factor that makes them different. Yes, sometimes we find them swarming around a rock. But then there are thousands rocks without them and with plenty of native fish doing there usual things.
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War Games: Russia Takes Ukraine, China Takes Taiwan. US Response?
Einstein said that nationalism is a disease. He didn't say nations.
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Biggest Bacterium Ever Discovered
Thank you. I'm very glad to hear this, because I don't like the sensationalistic hint in the original report about a possible discovery of a "missing link" between prokaryotes and eukaryotes. Although, I have to clarify, this "missing link" speculation appears only in the pop sci report, NOT in the primary report in bioarxiv.
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Biggest Bacterium Ever Discovered
Yes, however until this recent discovery they all were less than 1 mm in size and didn't have a DNA pouch. The new one is almost 1 cm long, has DNA pouch, and has been discovered in some Caribbean mangroves.
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Adam and Eve were genetically citizens of every country in the modern world, true or false?
Genetic adam and eve are accepted terminology in evolutionary biology.
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Adam and Eve were genetically citizens of every country in the modern world, true or false?
"Adam" and "Eve", since they have never met, did not have children together.
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Adam and Eve were genetically citizens of every country in the modern world, true or false?
The "Adam", i.e. a male ancestor of all living humans, and the "Eve", i.e. a female ancestor of all living humans, have never met and lived tens of thousands of years apart. The "Eve" lived long-long before the "Adam."
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Biggest Bacterium Ever Discovered
Don't hold your breath.
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Biggest Bacterium Ever Discovered
I wondered how fast this bacterium reproduces considering its size. But anyway, their evolution occurring faster they could evolve this feature really recently. How about in the last million years, for example?
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Biggest Bacterium Ever Discovered
Yes, 75 million years I consider not long at all on the 3-4 billion years scale. Mostly, after the dinosaurs. Of course they have changed their habitat many times. This is evolution. The unknown we are talking about is, when during this evolution they evolved this peculiar compartmentation.
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Biggest Bacterium Ever Discovered
Yes, not enough data. The only knowledge is that they evolved some time during the last 3-4 billion years. At any time during this window. They live on mangroves. How long do mangroves exist? Not very long.
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War Games: Russia Takes Ukraine, China Takes Taiwan. US Response?
As a former Soviet citizen with a part of the family coming from Ukraine I have to say that I never thought I will have such a high respect to the Ukrainian people and to their president (whose last name rhymes with mine.)