Pyrhan
Pyrhan t1_ivada0o wrote
I wonder what the sky would look like, inside a globular cluster...
Pyrhan t1_iv7ptzq wrote
Reply to El Paso High School students may have to retake SATs after tests fly out of UPS truck by Abortionofrights
I know someone who once had to re-take a university exam because the teacher forgot the bag with the exam copies in the train.
She said was quite happy about it, because she knew she had flunked it the first time, and she got a little extra time to work that subject before taking the test for the second time.
Others were obviously pissed...
Pyrhan t1_iv6hjiy wrote
Reply to comment by DltaDFoxtrot in [OC] North Korea's Missile Tests at Highest Ever in 2022 by waynehihihi
Yeah, haven't you seen the latest prequel?
Pyrhan t1_iue0w5u wrote
Reply to comment by VALMaX1 in [OC] Kuznet's curve - Death Rate due to outdoor Air Pollution vs GDP per capita by eqqqxy
India is the second biggest orange dot.
Pyrhan t1_iudcyj4 wrote
Reply to comment by DrTonyTiger in [OC] Kuznet's curve - Death Rate due to outdoor Air Pollution vs GDP per capita by eqqqxy
Also, what's the quality of those fits anyways?
Pyrhan t1_is85h2o wrote
Reply to comment by [deleted] in Police Killings per Capita v Homicide Rate per Capita for Select OECD Countries [OC] by dr5c
Yeah. Look at the labels on the axes:
"Homicide rate per capita (per 100,000)"
"Police killings per capita (Rate per 10M)"
​
Very misleading. I would not have noticed without u/klavical pointing it out.
OP should have used "per 1 million" for both and changed the number on the axes.
Pyrhan t1_iqtfslv wrote
Reply to comment by ProfessorrFate in [OC] Supersonic Inefficiency: Why the Concorde Was Decommissioned by haboo213
>Given the choice between flying NYC-London for $1000 in 6.5 hours versus $2500 in 3.5 hours, 99+% of people will choose the first option each and every time.
Two counterarguments apply here:
-This may not hold true for very long routes, like LA to Tokyo and other trans-Pacific routes. Not spending 11+ hours stuck in an airplane is certainly a luxury many would pay a premium for.
Concorde could not fly such routes as it lacked the range, mostly due to its fuel inefficiency, which brings me to the second point:
-Those new proposals promise much higher fuel efficiency than Concorde. Granted, it's still nowhere near regular subsonic airliners, but still far below the figure shown in the plot above.
Does this mean they'll be successful? No, absolutely not. There are still major technical challenges they need to solve, and even if they do, it is unclear the aforementioned gains compared to Concorde will be sufficient to make them commercially viable.
Overall, I believe they are still more likely to fail than succeed.
But it is certainly not a guarantee.
Pyrhan t1_jdic3h7 wrote
Reply to comment by Professor_Snarf in Scientists have shown how toxic dyes can be filtered out of wastewater using the method and material developed by the group. The procedure uses sunlight as a catalyst and doesn’t involve any pressure or heat. It can remove 80 percent of dye pollutants in wastewater. by Wagamaga
A cellulose filter loaded with organic dyes is very easy to incinerate, converting it all to CO2 and water.
As long as no organochlorine compounds or heavy metals are present, it should not pose an issue.