Recent comments in /f/todayilearned
grayskull88 t1_jdqp004 wrote
BloodyRightNostril t1_jdqotap wrote
trancepx t1_jdqosnf wrote
Reply to TIL: Lake Poopo completely dried up after the water level in Lake Titicaca could no longer support feeding into Poopo by Dotst
I have not the mental fortitude to make a comment here that isn't immature, so I will simply express that much.
garrethgobulcoque t1_jdqom0f wrote
Reply to comment by WalterS0bchack in TIL in 1979, in between a double-header, the White Sox exploded a crate filled with disco records to stands of over 50k disco haters. Thousands flocked to the field afterward, which became so destroyed that they forfeit the 2nd game to the Tigers - the last time in AL history. by JackMacWindowsLinux
This. I can't recall the details, but I remember that the "Disco Demolition" was first and foremost motivated by racism and not a "hate for disco music".
fredsam25 t1_jdqn5cq wrote
Reply to TIL that the ratio of male births to female births is 51/49%, and it's thought the ratio of X and Y chromosomes in the man's sperm is most likely the cause. by iKickdaBass
There is no single cause. In aggregate, more males than females are born. Some of it is from the dna distribution in viable sperm, some of it is viability in the womb, some of it is generations of selecting for male babies (post birth abortions of females) making a those that naturally abort female fetuses because of genetic flaws more likely to pass on their genetics, and some of it is still not known.
Dubanx t1_jdqn30s wrote
Reply to comment by The_Flurr in TIL: Thanks to poor internal communication at NASA, information about a spacesuit water leak wasn't properly communicated. Later, Astronaut Luca Parmitano almost drowned on a July, 2013 ISS space walk, his helmet filling with several liters of water before they could get him back inside. by OvidPerl
This is literally how sweat works.
Entrophy isn't an issue because it would still take energy to revert to its original liquid form.
samgarita t1_jdqmxes wrote
Reply to comment by iobeson in TIL That the Hallway (as an architectural feature) was first recorded in 1597 by SalMinellaOnYouTube
Yeah… but what have the Romans really ever done for us?
Dubanx t1_jdqmigl wrote
Reply to comment by MedicalJargon-itis in TIL: Thanks to poor internal communication at NASA, information about a spacesuit water leak wasn't properly communicated. Later, Astronaut Luca Parmitano almost drowned on a July, 2013 ISS space walk, his helmet filling with several liters of water before they could get him back inside. by OvidPerl
The process of boiling is endothermic, meaning the boiling water would rapidly cool without a source of heat. Which is probably what they're referring to.
LimpPeanut5633 t1_jdqmgu4 wrote
Reply to comment by Sword_Thain in TIL Early Superman comics taught kids how to achieve super-strength through exercises in lifting armchairs, getting a super-grip, and achieving super-vision by glancing at distant and near objects repeatedly by Ok_Copy5217
Ahh the bs Clark had to put up with.
Dubanx t1_jdqm4ox wrote
Reply to comment by VoxEcho in TIL: Thanks to poor internal communication at NASA, information about a spacesuit water leak wasn't properly communicated. Later, Astronaut Luca Parmitano almost drowned on a July, 2013 ISS space walk, his helmet filling with several liters of water before they could get him back inside. by OvidPerl
>The actual danger of removing his helmet in the situation above is that it wouldn't solve the problem
Without pressure, wouldn't the water immediately boil away? There literally wouldn't be anything holding the bonds together anymore.
somekennyguy t1_jdqm0i4 wrote
Reply to TIL that the ratio of male births to female births is 51/49%, and it's thought the ratio of X and Y chromosomes in the man's sperm is most likely the cause. by iKickdaBass
So, old story my dad told me. Not 100% on the accuracy, but basically if you want a male, wait and let the male spermies accumulate before attempting. While there are less of them, they typically swim faster and waiting for a bit gives a chance for them to accumulate to sway the odds. If you want a female, just keep going at it. Body produces more female sperm so chances are higher for this outcome. Evolution wise I guess it would make sense as you need more hosts than seed slingers...
[deleted] t1_jdqlnfg wrote
Reply to comment by jeffyoulose in TIL: Lake Poopo completely dried up after the water level in Lake Titicaca could no longer support feeding into Poopo by Dotst
[deleted]
Pseudonymico t1_jdqkuso wrote
Reply to TIL, the placenta that forms with a fetus isn't created by the mother. It grows from the fertilized egg and some fetuses actually develop outside the uterus attached to the intestines in the body cavity. by darw1nf1sh
It's also legal to eat the placenta in at least some parts of the world.
This means that you can have your baby and eat it too.
Hedgerow_Snuffler t1_jdqkrde wrote
Reply to comment by dontttasemebro in TIL That the Hallway (as an architectural feature) was first recorded in 1597 by SalMinellaOnYouTube
They did, this article is utter madness!
The writer is either joking or clearly never opened a book about classical architecture.
PN_Guin t1_jdqkm5n wrote
Reply to comment by jar1967 in TIL in 1979, in between a double-header, the White Sox exploded a crate filled with disco records to stands of over 50k disco haters. Thousands flocked to the field afterward, which became so destroyed that they forfeit the 2nd game to the Tigers - the last time in AL history. by JackMacWindowsLinux
It probably ended quite as "well" as I think it did. With plenty of overtime for police, ambulances, hospitals, firefighters, judges and companies installing new window panels.
Just not as well as the organisers thought it would.
Hedgerow_Snuffler t1_jdqkl2v wrote
Reply to TIL That the Hallway (as an architectural feature) was first recorded in 1597 by SalMinellaOnYouTube
WHAT? I swear sometimes I read stuff on here and think, have I slipped into some parallel reality?
There's an entire sub category of Roman Villas, called Corridor Villas. We have them here in Britain, and they can be found across most of Western Europe.
Chedworth Roman Villa (late 3rd early 4th C) has TWO nearly 50m long corridors, The majority of that Wiki article is utter bobbins and bum guff,
hje1967 t1_jdqkiga wrote
So they come armed & ready?
Edit: No Michael Schenker Group fans here apparently.. 🤣
hpisbi t1_jdqk78v wrote
Reply to comment by artaig in TIL that the ratio of male births to female births is 51/49%, and it's thought the ratio of X and Y chromosomes in the man's sperm is most likely the cause. by iKickdaBass
there are some other theories, including that Y chromosome sperm swim slightly faster than X chromosome sperm or that female embryos have a slightly higher chance of miscarrying. so they’re saying that the current view is that the ratio of X and Y sperm produced is what makes the difference, not the other theories.
IkmoIkmo t1_jdqjy0s wrote
Reply to TIL that the ratio of male births to female births is 51/49%, and it's thought the ratio of X and Y chromosomes in the man's sperm is most likely the cause. by iKickdaBass
I wonder how long that's been the case, and if via evolutionary theory it gave rise to physical and indeed cultural gender norms, around strength and competition and such.
​
After all, while it's a bit of a stretch, just to hypothesize: in a world with 8 billion people, having a 51/49 ratio means there's 3.90 billion women to 4.1 billion men.
​
In other words, there's 200 million men who by definition will not be in a relationship, assuming 100% of possible people engage in an exclusive relationship. That's 200 million men constantly competing to become one of the group of 3.9 billion men. Depending on status, men are able to join the group, or fall out of it. But the default state is to compete, as there's no partner for the bottom rung, which is statistically not true for women. It creates a bias to compete, also in evolutionary terms, which may have caused men to evolve to become physically stronger (an important trait for competition in the last 300 thousand years), and to become biologically or perhaps just culturally geared towards competition.
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I understand this is a super black & white view of the world that enormously simplifies a much more complex world. But I do wonder if this birth ratio difference is one of the drivers of the physical, biological and cultural differences we see (on average) across genders. Would be cool to see a sci-fi show which explores different birth ratios (e.g. 60/40 or 40/60), and what effect that would have on via evolution on biology, and on culture.
Captain-Griffen t1_jdqjtge wrote
Reply to TIL that Australia's longest serving aircraft carrier never fired a shot in anger during her service, but did kill over 150 Allied soldiers in two separate accidental ramming incidents by nyckidd
As you might expect, fault in both cases was primarily assigned to the destroyers rather than the carrier. What fault that lay with the carrier was mostly in not screaming "wtf are you doing?" early enough at the destroyers.
Captain-Griffen t1_jdqjjlc wrote
Reply to comment by Beginning-Marzipan28 in TIL that Australia's longest serving aircraft carrier never fired a shot in anger during her service, but did kill over 150 Allied soldiers in two separate accidental ramming incidents by nyckidd
Given the US Navy destroyer caused the second collision, not really.
WalterS0bchack t1_jdqjjck wrote
Reply to TIL in 1979, in between a double-header, the White Sox exploded a crate filled with disco records to stands of over 50k disco haters. Thousands flocked to the field afterward, which became so destroyed that they forfeit the 2nd game to the Tigers - the last time in AL history. by JackMacWindowsLinux
Yet another sad example of racism in America.
muggydad t1_jdqi7r9 wrote
Reply to TIL the Domino's logo has 3 dots to represent the original 3 locations in Michigan. by eelikay
I don't think so. My high school was directly across from the original location and they used old checker cab car with a domino on the top as a delivery vehicle.
a_trane13 t1_jdqp32b wrote
Reply to comment by tullystenders in TIL that the ratio of male births to female births is 51/49%, and it's thought the ratio of X and Y chromosomes in the man's sperm is most likely the cause. by iKickdaBass
Human females are 2-3x less likely to die between 18-45 so I wouldn’t just assume humans in particular could “use more females”.