defcon_penguin
defcon_penguin t1_jee8kk9 wrote
Reply to Hyperloop technology could revolutionize transportation with ultra-high-speed, environmentally friendly travel up to 700 miles per hour, and student-led initiatives like HYPED are dedicated to making this a reality through innovative design and development. by intengineering
Has anyone found out yet how to build and operate a vacuum tube several hundred kilometers long?
defcon_penguin t1_jeadpoh wrote
Chicken nuggets are the easiest meat to synthesize. They are already pretty synthetic even if made from actual chicken
defcon_penguin t1_jdpyfvv wrote
Reply to Honduras announced on Saturday that it had broken off diplomatic relations with Taiwan, a move that drew an immediate rebuke from Taipei as Tegucigalpa switches allegiances to China by DoremusJessup
The US should take a bit more care of their backyard
defcon_penguin t1_jdpydro wrote
Reply to comment by MrJqmbo in Honduras announced on Saturday that it had broken off diplomatic relations with Taiwan, a move that drew an immediate rebuke from Taipei as Tegucigalpa switches allegiances to China by DoremusJessup
I would assume that the US, which is much nearer than China, has even more perks for Honduras and that the US are not going to be very happy about this change
defcon_penguin t1_jbn7jqx wrote
Reply to Mer de Glace - the second largest glacier of the Alps. Chamonix, France. [OC] [3840 x 5760] by Mallen2154
I thought there was ice in a glacier...
defcon_penguin t1_j73n9mm wrote
Reply to Could ChatGPT supercharge false narratives? by Wagamaga
Bots spreading fake news, misinformation, spam and or phishing links will become much smarter and convincing
defcon_penguin t1_j6ehuug wrote
Reply to Scientists lower price of lithium's best competition - flow batteries - by 20%. Makes the battery effectively equal to or cheaper than lithium ion when spread over 30 years (flow battery lifetimes are effectively infinite with light repowering efforts). by PorkyPigDid911
The best competitor of lithium is sodium. Plenty, cheap, and almost as dense as lithium. Manufacturing is starting to come online
defcon_penguin t1_j4ftu0l wrote
Reply to comment by WolfThick in Germany plans to destroy this village for a coal mine. Thousands are gathering to stop it by LaminatedDenim
The plan of temporary replacing coal with gas during the scale up of renewables was made when Russian gas was still plenty and cheap. LPG is not enough and too expensive to replace coal. Germany will have to directly replace coal with renewables
defcon_penguin t1_j2w515b wrote
Reply to They say we're past "social media" and are now in the age of algorithms: the "recommendation media." by retepretepretep
Is that news? The news feed from social networks is algorithmic since some years already
defcon_penguin t1_j23552v wrote
Reply to comment by defcon_penguin in In the future will we have random teens making movies like avatar with text prompts from their bedroom and flood the youtube? by village_aapiser
I don't think we need to wait for 2050. Considering the current status of AI generation, and the quality of what is produced by humans for Netflix, I would assume that we are just a couple of years away from the first examples
defcon_penguin t1_j23516c wrote
Reply to comment by village_aapiser in In the future will we have random teens making movies like avatar with text prompts from their bedroom and flood the youtube? by village_aapiser
Reinforcement: If you keep watching it, it means it's good. If you ask for a new one, it means it's bad. The algorithm will become smarter each time
defcon_penguin t1_j23496g wrote
Reply to In the future will we have random teens making movies like avatar with text prompts from their bedroom and flood the youtube? by village_aapiser
No, you will just input what you like to see in Netflix and it will generate a 10 episodes TV series with 6 seasons for you
defcon_penguin t1_iyr3qne wrote
B2's little kid
defcon_penguin t1_iyeimxn wrote
Reply to comment by BallardRex in The days of the hydrogen car are already over by Sorin61
The fact that the Texas grid is not connected to the other American grids is more a testament to the stupidity of the local politicians than a demonstration of why long distance connections don't work
defcon_penguin t1_iyeieac wrote
Reply to comment by BallardRex in The days of the hydrogen car are already over by Sorin61
Sure, using surplus energy to produce hydrogen is better than simply discarding it. But I am arguing that long distance interconnections are even better.
defcon_penguin t1_iyeheua wrote
Reply to comment by BallardRex in The days of the hydrogen car are already over by Sorin61
Why? Pipelines don't need to be built and maintained? Or hydrogen transport ships?
defcon_penguin t1_iyeh941 wrote
Reply to comment by BallardRex in The days of the hydrogen car are already over by Sorin61
The energy that would be used to compress and refrigerate is also a loss, even if you use solar, because it could otherwise be transmitted and sold.
defcon_penguin t1_iyeh2gw wrote
Reply to comment by BallardRex in The days of the hydrogen car are already over by Sorin61
HVDC lines have less than 5% losses every 1000 km. 75% efficiency, which is the theoretical maximum of electrolysis, means 25% loss, the same of a 5000km line. Combined cycle plants also have around 60% efficiency
defcon_penguin t1_iyee1ce wrote
Reply to comment by BallardRex in The days of the hydrogen car are already over by Sorin61
Hydrogen must be produced by electrolysis, which is only 75% efficient. It must be compressed and refrigerated for transport, which takes energy. It needs to be converted back to electricity in fuel cells, which are at most 60% efficient. There are losses everywhere, much more that in long distance HVDC lines.
defcon_penguin t1_ixiy12l wrote
Reply to comment by Cynical_Cabinet in Your Robotaxi Is Almost Here by Rear-gunner
Never said that
defcon_penguin t1_ixi1w1h wrote
Reply to comment by Svenskensmat in Your Robotaxi Is Almost Here by Rear-gunner
Next time I call, you so you take my mother with her luggage to the station with your cargo bike
defcon_penguin t1_ixh4vgi wrote
Reply to comment by miner_sd in Your Robotaxi Is Almost Here by Rear-gunner
Bikes are not for everyone. Families with small kids, old people, people with disabilities, people carrying large packages. Not everyone can ride a bike, not every time.
defcon_penguin t1_ix7pvud wrote
Reply to A 20 mph speed limit intervention implemented at city centre scale had little impact on short- or long-term outcomes for road traffic collisions, casualties and speed. by _DeanRiding
20 mph for residential areas and side streets, make perfect sense. For main roads where most traffic is, makes no sense
defcon_penguin t1_iwuam93 wrote
Reply to [OC] Countries and women in STEM by Equal-Crew-3367
Why is Austria there but not Germany for example?
defcon_penguin t1_jeeal8c wrote
Reply to Meta stops offering remote work in new job postings as Mark Zuckerberg pushes the benefits of coming to the office by Ben_aid
Another reason not to work for Meta