Recent comments in /f/science

TomSurman t1_je72ctx wrote

Reply to comment by ArcherBTW in Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga

Wikipedia lists two bigger ones, but says the data is unreliable. Their estimated masses are greater than the theoretical maximum a black hole should have been able to reach in a universe this young.

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afrothunder1987 t1_je71qja wrote

Reply to comment by endlessupending in Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga

Well this is all theory but possibly! Could be that two galaxies with overly large black holes merged and the black holes combined. Or maybe the star that force fed this particular black hole was just way larger than normal.

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high5scubadive t1_je6zmkk wrote

Reply to Harsh mothers more likely to have poor executive functioning and interpret others’ behavior as hostile: Study finds that mothers with harsher parenting practices tend to have poorer executive functioning and are more prone to hostile attribution bias. by motskena

Well yeah…this was me with 3 little kids until I got treated for undiagnosed ADHD I had for 38 years. That’s a lot of women who get diagnosed as mothers. Their kid gets diagnosed first.

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TheGinger_Ninja0 t1_je6ycy2 wrote

Reply to comment by Im_Talking in Aggregate measure of financial misreporting for nearly 2,000 companies in the U.S. suggests that the collective probability of fraud across major companies is the highest in over 40 years by marketrent

Eh. The national debt rise is pretty easy to pinpoint causality too. A huge portion is rich people getting a big ol tax break from trump and the GOP.

So it's kind of related, in that rich people set themselves some rules that favor them in both cases. But financial misrepresentation isn't exactly causing a defect.

Sure doesn't help though.

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amitym t1_je6yb8t wrote

Reply to Ultramassive black hole over 30 billion times mass of our sun has been spotted. The discovery had been made possible thanks to a phenomenon known as gravitational lensing — the first time a black hole has been spotted in such a way. by Wagamaga

Based on a random internet Schwarzchild Radius calculator, at 30Bn times Solar mass, that would put the event horizon at an equivalent distance of about 15 times further than Pluto. Anyone in orbit just above the event horizon would move at about 6km / s, roughly comparable to low Earth orbital velocity, and would be subject to only 50 gees -- hard to escape from but not impossible, also not nearly enough to cause "spaghettification," or appreciable time dilation either.

Aside from being fried by the hard radiation pouring out from right under you, sounds quite livable! You'd never have to worry about getting too cold, anyway.

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aupri t1_je6y1tg wrote

Reply to Animals adjust reactions to misinformation: fish can adjust their sensitivity to the actions of others – such as fleeing due to a false alarm – in order to reduce the risk of overreacting to misinformation, this decision-making mechanisms may be preserved in other animals, including humans by giuliomagnifico

I started reading The Handbook of Linguistics recently and this reminds me of some cool info it had in the first chapter about some type of small monkey responding to calls from other monkeys in their group. Basically they have different calls for different types of predators that incite different defensive actions, such as one call for a snake where they would respond by running up into the trees, another for a bird where they would run to the ground, etc. Initially scientists thought the calls were just calling attention to the monkey making the call and the other monkeys were mimicking it’s behavior, but they played recordings of various calls and the monkeys still reacted accordingly without being able to see any monkey making the call, suggesting the monkeys were reacting to the calls themselves. They also saw that the monkeys were able to distinguish the calls of individual monkeys, much like humans can recognize someone by their voice, and after repeated false alarms using the same recording where a call was played without the relevant predator present, the monkeys stopped reacting to the calls made by that particular voice for that specific predator, but would still respond if the voice made a call for a different predator, or if a call for the same predator was made using a different voice, suggesting the monkeys can learn which other monkeys are reliable sources for alerting them to the presence of a particular predator

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SHALL_NOT_BE_REEE t1_je6xkkq wrote

Reply to comment by Zealousideal_Word770 in Firearms deaths involving preschool-aged children had increased at an alarmingly high rate in the United States in the past decade, but state laws may help curb shooting deaths among young children. by Wagamaga

Over half of US states have implemented similar laws and so far haven’t seen any consequences. I’d be very interested to see if there’s any sort of correlation between concealed carry laws and gun violence, considering a majority of states in America were either may-issue or no-issue 20 years ago and the homicide rate in America didn’t start climbing until very recently.

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