Recent comments in /f/science
[deleted] t1_jb5vyl0 wrote
Reply to comment by [deleted] in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
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messopotatoesmia t1_jb5uo7h wrote
Reply to comment by Vitztlampaehecatl in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
So you're saying that everyone should ride bikes, and there's never a reason not to own one?
Edit: oh you post in r/fuckcars. Never mind - I can't expect to have a rational answer from you.
messopotatoesmia t1_jb5uhnr wrote
Reply to comment by Kennethrjacobs2000 in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
I'm going to wait on getting an ebike until I can leave it chained outside a store without expecting people to show up with bolt cutters to steal it - which is the reality for Seattle right now.
You do miss the point entirely though:
You can't take two kids to school on your ebike.
You can't ride your bike if your knees are giving out.
You can't get a week's worth of groceries for a family of five on a bike.
You can't drop kid A off at elementary school, and kid B off at middle school across town, and do the reverse before you run out of after school care, if you're on a bike.
The reality is that we need solutions that work for a variety of different people. That solution for many has to include a car, because in the US our cities are huge, and we need to get around and across them.
So while biking is great and I'm all for it, it's not a blanket solution for everyone and never will be. It's not even a blanket solution for most people - in Seattle biking drops to near zero in the winter along normal bike commuter routes. Are those people getting the bus? Maybe. Not all of them. Many of them are just taking their car in the winter.
[deleted] OP t1_jb5ty2l wrote
Reply to comment by methyltheobromine_ in Identifying Polarized Twitter Echo Chambers: A Case Study that identified a German echo chamber of 66K accounts mainly focused on topics like Anti-Covid Populism, Right-Wing Populism and Pro-Russian positions | Open Access by [deleted]
You are correct. "Right echo chambers" are most of the time even smaller (but often "louder", therefore, the right chambers appear larger than they are). But this one here is very focused on small but polarizing topics. This shape seems exceptionally "designed" showing strange communication patterns (presumably amplified and intended by Kremlin-orchestrated troll accounts). That is what the study is saying. Nothing more, nothing less.
Upstairs_Maybe_8598 t1_jb5tpc4 wrote
Reply to comment by Notspherry in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
my electric cargo bike (radio flyer) was about $2k i believe?
messopotatoesmia t1_jb5thfo wrote
Reply to comment by Thud2 in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
Exactly. Howdy, neighbor.
messopotatoesmia t1_jb5tfds wrote
Reply to comment by ThellraAK in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
How would you change it? Remember that deliveries and emergency vehicles and buses still need to get around or it's pointless - which means that in many cases you're still looking at 3-4 lane arterials at a minimum.
[deleted] t1_jb5tc2z wrote
Reply to comment by [deleted] in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
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Lesurous t1_jb5t5ji wrote
Reply to comment by ssnover95x in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
True, but there's an aspect that should be included, which is taking trucks off the roads too. Live in Texas, trucks everywhere and even drive one myself, but they're not fuel efficient in comparison to a passenger car when it comes to just transporting people.
messopotatoesmia t1_jb5t26e wrote
Reply to comment by citybuildr in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
Again, you're making weird statements. Businesses have parking based on how busy they are, not based on the total size of the car-owning population. That's dumb.
Also many of these studies use computer-based ai systems that - at least in my neighborhood - treat playing fields and back alleys and the roofs of hospitals as parking structures, so I wouldn't trust those estimates.
Try about 2.5x for older cities) geographically constrained ones. In the south you might see different densities.
messopotatoesmia t1_jb5sfu8 wrote
Reply to comment by [deleted] in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
Try reading what I wrote again, in context.
The whole point is that walkable neighborhoods rapidly become "I need a car because..." the moment you're not a hip young urbanite without walking problems, or kids, or needing to bring groceries home to feed a family.
HeTakesYou t1_jb5scfq wrote
Reply to Interesting relationship between Chemoresistant Ovarian Cancer and Follistatin. Follistatin production increased chemoresistance by communicating with neighboring cells to promote quiescence. Could be a potential target for therapy in the most deadly gynecological cancer. by Rain_Dont_Pour
Is there a need to test for follistatin before starting chemo treatment? Would high producers respond worse to treatment?
cgn-38 t1_jb5s1gh wrote
Reply to comment by PetsArentChildren in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
Yep. A lot of the old roman "dude on horse" statues are hilarious.
Looks like they are riding on a donkey. Because that was just as big as horses got then.
moeru_gumi t1_jb5rrsu wrote
Reply to comment by distortionwarrior in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
I lived in a city of 10 million people in Japan. You regularly see mothers with babies in the bicycle baskets and groceries on the back.
burnerman0 t1_jb5quwq wrote
Reply to comment by bebe_bird in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
Except it's not a 1:1 ratio of taxi users and taxi cars. If a taxi covers the commute for 15 people in a day, then it's +1 and -15. It is less vehicles on the road. But.... It's more miles driven because the taxi has to get from fare to fare.
ETA: taxis subsidize the cost of car ownership, they don't reduce congestion.
Unadvantaged t1_jb5qt96 wrote
Reply to comment by PartyYogurtcloset267 in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
laughs in Floridian
[deleted] t1_jb5qjnb wrote
Reply to comment by [deleted] in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
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burnerman0 t1_jb5qj8c wrote
Reply to comment by Isord in Study reveals that although private automobiles continue to be the dominant travel mode in American cities, the share of car trips has slightly and steadily decreased since its peak in 2001. In contrast, the share of transit, non-motorized, and taxicab trips has steadily increased by giuliomagnifico
Less cars compared to everyone driving themselves, but more miles driven by cars because that one car needs to commute between dropoff of one person and the pickup of the next.
[deleted] t1_jb5q2m6 wrote
Reply to comment by PussyStapler in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
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Ganajin t1_jb5pgwf wrote
Reply to comment by nuck_forte_dame in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
They used them to pull things, which is not riding them.
[deleted] t1_jb5pdgf wrote
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DoctorZiegIer t1_jb5owqq wrote
Reply to comment by [deleted] in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
Ancient horses were too small and didn't have a back strong enough to support riding.
Horse were definitely already semi or fully domesticated, plenty of evidence shows they were used to pull chariots and carry cargo, but to carry an entire person with no issues requires bigger and stronger horses that probably didn't yet exist before ~3000 BC
Horses were used over 5000 years ago, but we couldn't yet ride them, they could not handle our load
danielravennest t1_jb5ots6 wrote
Reply to comment by B-Bog in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
If you had lived over a hundred years ago, keeping horses would seem as normal as keeping cars are today. The US horse population fell dramatically after 1920 as cars became common.
MF_Bfg t1_jb5nxqh wrote
Reply to comment by ReddJudicata in Humans Started Riding Horses 5,000 Years Ago, New Evidence Suggests by geoxol
True!! Good thinking. I guess they might have made mules with onagers.
Thermodynamicist t1_jb5vyoq wrote
Reply to comment by bar10 in Salty fingerprint in the Ocean is evidence of accelerated weakening of Atlantic Meridional Overturning Circulation by DisasterousGiraffe
The question is how this overall warming effect is distributed.
E.g. assume it's 15 ºC average to begin with. We might approximate this as a sine wave over the year with an amplitude of 10 ºC.
In the case of 3 ºC warming, we might then have 18 ºC with the same 10 ºC amplitude sine wave, or we might have 18 ºC ± 20 ºC. These scenarios would be very different despite having the same average temperature.