killingtime74 (u/killingtime74)

killingtime74 commented on Japan has opened its first osmotic power plant theguardian.com/world/202... · Posted by u/pseudolus

schneehertz · 20 hours ago

The freshwater used in this osmotic power plant is produced by a wastewater treatment plant, and the high-salinity water used is the wastewater generated by a seawater desalination plant So, if the freshwater produced by wastewater treatment plants is further processed into usable freshwater to replace the freshwater produced by seawater desalination plants, soon one water treatment plant could replace both the seawater desalination plant and the osmotic power plant, reducing steps. I believe this would greatly improve efficiency

killingtime74 · 17 hours ago

I believe Singapore does that and gets almost pure water. https://en.m.wikipedia.org/wiki/NEWater

killingtime74 commented on Margin debt surges to record high advisorperspectives.com/d... · Posted by u/pera

mitthrowaway2 · 6 days ago

Money doesn't get invested in the market; when you put money into the market, someone else takes it out, because you're trading assets. What can happen is that the price of those assets goes up when more people have money that they want to invest, because the price has to rise to the point where there are as many sellers as buyers. So the market price can grow up, but there's no vault of money tied up in the market.

However, there can be money created by the market, because people and companies can borrow money while using the value of the assets they own as collateral. This borrowing does cause new money to appear from thin air, which means that the market is a source of money, not a sink. As this borrowed money increases the money supply just like physical money-printing would, the price of assets tends to rise along with it, as much of that borrowed money gets put towards buying those assets, increasing the number of buyers, and someone has to be convinced to sell.

This creates an unstable feedback loop of rising borrowing against rising asset prices causing higher asset prices, and it can of course operate in the reverse mode as well, where falling asset prices result in loans being called in, causing the money supply to shrink, pushing asset prices down even further.

(This crash is not a necessary outcome; if the assets correspond to productive investments and real growth, this results in abundance which can in various ways allow those debts to be held or paid off without falling asset prices.)

killingtime74 · 4 days ago

You described velocity of money https://en.m.wikipedia.org/wiki/Velocity_of_money

killingtime74 commented on Pixel 10 Phones blog.google/products/pixe... · Posted by u/gotmedium

delichon · 7 days ago

Or for the police, "list any legally questionable content on the phone or behavior by the owner."

killingtime74 · 7 days ago

The model might even make something up, giving police "reasonable suspicion". Not that it seems it's needed anymore in the US

killingtime74 commented on Ford reveals breakthrough process for lower priced EVs theverge.com/ford-motor-c... · Posted by u/coloneltcb

daft_pink · 16 days ago

Reality is that EV vehicle costs are heavily dependent on battery material prices and any breakthrough process would either use cheaper minerals or reduce the price of existing minerals. ICE engines are made from widely available steel and aluminum and lots of labor and factories that build the complex mechanisms involved. EV’s require much less labor but the cost is mostly driven by the cost of minerals in the battery packs that is very expensive.

Maybe we should have expanding mining and made the underlying minerals much cheaper as opposed to subsidizing each individual vehicle.

killingtime74 · 16 days ago

Sodium ion batteries already only use abundant minerals and no lithium. Already a production car made with this in china. https://en.m.wikipedia.org/wiki/Sodium-ion_battery

killingtime74 commented on I bought a £16 smartwatch just because it used USB-C shkspr.mobi/blog/2025/08/... · Posted by u/blenderob

killingtime74 · 19 days ago

It would be great if this review had a bit more pixels. Bit hard to tell how good the screen is

killingtime74 commented on Google is asking the court for an emergency stay following Epic’s big win theverge.com/news/717440/... · Posted by u/saikatsg

thechao · a month ago

I have a question: do Epic's games have in-game stores. Do they have to open those stores to 3rd parties, now? I mean ... fair-is-fair, right?

killingtime74 · a month ago

Well since it's not preloaded into a phone it's not the same. It's part of an app you voluntarily install. Can one force one's local supermarket to carry one's product.

killingtime74 commented on Detekt – A static code analyzer for Kotlin detekt.dev/... · Posted by u/TheWiggles

smokel · a month ago

Out of curiosity, how many of you are using Kotlin for backend development? It seems that Java has caught up a bit, and the advantages of Kotlin (extension methods, better syntax, better null-checking) might not be enough to justify the risk of lock- in?

Personally, I quite like Kotlin, but I haven't been able to convince most of my greybeard colleagues to make the leap.

killingtime74 · a month ago

Atlassian uses Kotlin extensively. Thousands of developers working on JIRA, Confluence and other associated products.

killingtime74 commented on Impacts of adding PV solar system to internal combustion engine vehicles jstor.org/stable/26169128... · Posted by u/red369

chris222 · a month ago

I’ve just done a legtimate 425 mile solar powered round trip which is the culmination of many things I will explain below. I can now effectively drive anywhere in a 225 mile radius and back for about $10 total cost and on 100% solar power.

I have a two complete solar systems on my house the first one was 10.98kW AC installed 4 years ago with the panels facing south. The second was just installed a few days ago and is a 9.9kW AC with the panels facing east/west. Combined the system will produce over 20MWh of power per year. Both systems are grid tied used EnPhase microinverters and are now combined together for monitoring in one site.

I have an EnPhase IQ EV Charger. This has a mode where it communicates with the solar system, understands how much power is being produced and consumed in the house and then adjusts the EV charger output to match the excess solar production.

I have an EV with the largest battery that is available. The Chevy Silverado EV truck has 24 battery modules with a total gross capacity of slightly over 200kWh. The efficiency on road trips at high speeds is about 2.1miles per kWh. I have verified this with a real world road trip of over 400 miles.

The cost of the solar is around 5 cents per kWh over the 25+ year lifespan of the system.

killingtime74 · a month ago

Just to be clear you're talking about variable costs not total costs. Total costing include time value of money, amortization etc. (I'm no hater I also drive an EV).

killingtime74 commented on Preliminary report into Air India crash released bbc.co.uk/news/live/cx20p... · Posted by u/cjr

andrewinardeer · 2 months ago

> it was one of the most horrific mass murder in history

This implies intent.

> One pilot asked “why did you turn them off?” and the other said “I didn’t.”

To me this reads like an unintentional error with colossol implications.

Are you suggesting there was malicious intent and then a delibrately crafted denial by the perpetrator?

killingtime74 · 2 months ago

I mean lots of people in prison say they are innocent

killingtime74 commented on Ask HN: How did Soham Parekh get so many jobs? · Posted by u/jshchnz

eviks · 2 months ago

The difference is pretty explicit in the terms and conditions? By the way, there are also leadership positions with similar limitations on your ability to take outside roles.

killingtime74 · 2 months ago

Interesting. So elon's terms and conditions says he's a part-time employee?