Lead 204 is entirely primordial and the other isotopes found on earth would be found at roughly the same concentration were all of the lead on earth primordial. It's the excess ratios of the other isotopes of lead that can be attributed to radioactive decay. That is a substantial proportion of the lead on earth, but to say the "existence of lead" is proof of the age of the earth is entirely incorrect.
Price tracking systems like Keepa and CamelCamelCamel wouldn't work if they started doing this. I can verify that, when I get alerts, the price on Amazon is the same as the alert price.
Federal Reserve Economic Data shows debt:GDP holding at 120% since spiking during the pandemic.
They should trade China all the cigars and rum they want for enough cheap solar and batteries to power the island.
It's been 12 years now. Yes, only mammal meat causes a reaction, with fattier cuts causing a stronger reaction. I did have a reaction Gruyere once though.
It has weakened over time, but if I eat a large amount of red meat, such as a steak, I'll have a reaction.
I have this. Had a lone-star tick on my right shoulder blade and didn't notice until it started itching. The wound site took over a year to heal and would still randomly itch for a decade. Took me forever to figure out what was causing the allergic reactions because there's a 3+ hour delay before you experience symptoms.
The photo the DPRK released showed a fairly small drone with a triangular shape. It doesn’t look sufficiently large to fly all the way from the ROK to Pyongyang, drop some leaflets and return to the south, meaning they should have been able to recover the crashed drone. Also, if it were a civilian group, they usually take credit for the balloons they send and none have said anything about sending a drone to the north. It really seems like something might be going on internally and the DPRK is trying to blame whatever is happening on outside agitation.
Have you checked your sacrificial anode? If it’s gone, this will keep happening.
It's for the Korean market. It'll get you from Seoul to the east coast on a single charge and there's high-speed rail just about everywhere for your longer journeys. Perfectly fine for most people in such a small, densely-populated country.
If you have solar paired with proton exchange membrane electrolysis, you can generate hydrogen very economically. PEM electrolyzers are already around 80% efficient but supply is limited right now. Hydrogen is a pain to store, but if you feed that hydrogen into the Haber-Bosch process you can very efficiently produce ammonia. Ammonia fuel cells are very promising if you're looking to decarbonize container shipping.
They had a number of 0.5% or greater increases in 2022, two drops going into the pandemic, etc.
Other automakers should try producing $21,000 LiFePO4 EV hatchbacks with a 250 mile range instead of cranking out $50,000 EVs with a bunch of ADAS crap that most people don't care about.
Looks like it's a uniform color. Probably harmless. Just ask your doctor to look at it next time you go in for a check up if you're concerned or sooner if it changes shape/color.
I'd love to be able to "seed" the fediverse through p2p hosting of some sort. I'd set aside 1 TB of storage and 20 MB/s for that.
What modern lithium ion battery is limited to 400 cycles under normal conditions? My 2017 tablet had 1,600 cycles on it and 82% SoH when I sold it this year.
All of these cinder block walls would look so much nicer with stucco and a coat of paint.
Their accident rate continues to decrease and things like quorum sensing and platooning are going to push them to be better than humans. You're never going to have a perfect system that never has accidents, but if you're substantially better than humans in accidents per mile driven and you're dramatically improving throughput and reducing traffic through V2X, it's going to make sense to fully transition.
I imagine some east Asian countries will be the first to transition and then the rest of the world will begrudgingly accept it once the advantages become clear and the traditional car driving zealots die off.