Thought for the day...

nsaspook

Joined Aug 27, 2009
16,330
Looks like Kim is back. Bigger than life and twice as ...
http://www.koreaherald.com/view.php?ud=20200502000031
"All the participants broke into thunderous cheers of 'hurrah!' extending the greatest glory to the Supreme Leader who has brought about a new change in the development of Juche-based fertilizer industry and has led the grand revolutionary advance for strengthening self-supporting economy to a victory with his outstanding leadership," KCNA said.
 

nsaspook

Joined Aug 27, 2009
16,330
The South Koreans who definitely should know with plenty of spies in NK never believed he was dead or incapacitated.

5 days ago.
https://www.cnn.com/2020/04/26/asia/kim-jong-un-north-korea-health-intl/index.html
(CNN)South Korea continued to pour water on mounting speculation about the health of North Korea's leader Kim Jong Un, telling CNN he is "alive and well."
"Our government position is firm," Moon Chung-in, the top foreign policy adviser to South Korean President Moon Jae-in, told CNN. "Kim Jong Un is alive and well. He has been staying in the Wonsan area since April 13. No suspicious movements have so far been detected."
 

nsaspook

Joined Aug 27, 2009
16,330
Shipping. What happens when you order 4 fans instead of 5 and the OEM shipping container for 5 is used?


Answer. Hundreds of broken plastic bits stuck to everything by static electricity. You also get one free shot to curse the shipper in an email.
 

SamR

Joined Mar 19, 2019
5,491
Almost as much fun as when I receive 10 DIP chips thrown into an envelope with no protection and all the pins mashed up.
 

nsaspook

Joined Aug 27, 2009
16,330
Nothing stops the Nigerian Prince.
https://krebsonsecurity.com/2020/05...gainst-state-unemployment-insurance-programs/
U.S. Secret Service: “Massive Fraud” Against State Unemployment Insurance Programs
A well-organized Nigerian crime ring is exploiting the COVID-19 crisis by committing large-scale fraud against multiple state unemployment insurance programs, with potential losses in the hundreds of millions of dollars, according to a new alert issued by the U.S. Secret Service.
https://www.opb.org/news/article/unemployment-fraud-covid-19-washington-state/
Impostors have used the stolen information of tens of thousands of people in the state to fraudulently receive hundreds of millions of dollars in unemployment benefits, the head of Washington’s Employment Security Department said Thursday
Hundreds of millions? :eek: These guys have really stepped up the game.
 

cmartinez

Joined Jan 17, 2007
8,768
https://interestingengineering.com/...tperforms-lithium-ion-batteries-on-all-levels

There's a new battery in town and it is a game-changer. The novel battery is cheaper, safer, and significantly longer-lasting than lithium-ion batteries, reports Recharge.

The zinc-air hybrid flow battery is developed by a Canadian company called Zinc8. Zinc8 claims that the storage capacity of its system is adaptable, which is just one area in which it performs better than lithium-ion batteries.
 

cmartinez

Joined Jan 17, 2007
8,768
I guess we will find out in 10 years if hype was the secret ingredient to the battery that's more like a fuel cell system with a 65-70% round trip efficiency .
Mind elaborating? Are you saying that the zinc-air battery is less efficient than Lithium-ion? Because I didn't notice that info in the article.
 

nsaspook

Joined Aug 27, 2009
16,330
Mind elaborating? Are you saying that the zinc-air battery is less efficient than Lithium-ion? Because I didn't notice that info in the article.
High efficiency is relative for the entire system. Flow batteries have pumping systems that lose power due to heating and mechanical losses. Some of the non electrochemical losses can be recovered but usually it's not a large fraction.

https://www.frontiersin.org/articles/10.3389/fenrg.2019.00015/full
Recently, the ESS based on Zn-air flow batteries was developed by Amunátegui et al. (2018). A 1 kW, 4 kWh Zn-air flow battery pilot plant was demonstrated having 40% round-trip efficiency and 2,000 cycles, respectively. It was observed that the coulombic efficiency was reduced by 18% because of shunt current phenomenon.
 
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