shoesfullofdust

Joined 17 years ago

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Jul 29

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Comment · 3 years ago

I think we watched a different video. They are harvesting parts and the disassembly plant is 75% powered by solar.

Comment · 3 years ago

Fascinating! Thanks for sharing this!

Comment · 4 years ago

thought the news would be of interest. that's all

U.S. jury convicts Nikola founder of fraud reuters.com

10 shoesfullofdust 4 years ago 6 comments

Comment · 12 years ago

In my world, AA batteries are all about door locks. There are a lot of card-reading door locks that depend on them.

Whenever a lock fails, step one or two or three is replace the batteries. That's 4-6 batteries per lock.

As a maintenance/security procedure, once every couple of years, every battery in every lock in the entire building is replaced. Doesn't matter if they are dead, weak or brand new. That's hundreds/thousands of batteries.

That's a lot of batteries. And Duracell has multiple levels of "pro"/"industrial grade" batteries. We buy them by the case.

I'm sure the markup on consumer batteries are huge, but I'd also think the commercial use of double-As must dwarf the consumer market. Smart buy by Warren is my guess.

What's needed in this space is a door lock that winds itself much like a "perpetual" watch. Something that takes the mechanical energy used to turn the door handle and turns it into stored energy that can be used to read the card and unbolt the door.

And there you go. Make this thing :)

Comment · 14 years ago

The people I work with (about 900 of them, all <20 yrs old) do not check their email. The only reason they have email is to create an account with a service that has little or nothing to do with email. Forget about email.

Comment · 15 years ago

Nixon's bold stance(?!) predates P.S. Lang's invention of a synthetic replacement by a number of years.

http://www.presidency.ucsb.edu/ws/index.php?pid=3731

Of course, he could never use the term "sperm whale". But this is what led to the Endangered Species Act that granted the whales a reprieve. Lang's invention was only a reaction to this. It's still a good read.