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rbobby commented on How to Perfectly Crack an Egg (With One Hand) [video]   youtube.com/watch?v=AE-Xe... · Posted by u/bookofjoe
rbobby · 2 years ago
I've learned to accept getting a bit of raw cold egg white on my fingers.
rbobby commented on Why Is the Press Attacking Home Schoolers?   wsj.com/articles/why-is-t... · Posted by u/bitlax
rbobby · 2 years ago
John Oliver did an eye opening bit on homeschooling: https://www.youtube.com/watch?v=lzsZP9o7SlI&pp=ygUVam9uIG9sa...

The lack of regulation is concerning. What's truly disturbing is how easily it is for children to fall through the cracks when there are no teachers to report possible abuse. Frightening.

rbobby commented on Super Simple Storage Service   supersimplestorageservice... · Posted by u/jamespwilliams
azornathogron · 3 years ago
I believe they have overestimated the cost of using 3.5" floppies, probably to make themselves look better by comparison.

They give the cost as $211,172, but that's the cost to buy a 1 TiB pack of floppies. Their own storage cost is per-month, so to get the equivalent cost for floppies you need to also divide by the expected useful lifetime of a floppy disk. I did a web search for "floppy disk lifetime" and the internet [1] told me "I’ve seen numbers saying the lifespan of floppy disks is three to five years. But I’ve also seen numbers that claim they can last ten to twenty years or even indefinitely."

If you assume floppy disks have an expected lifetime of 5 years, you can amortise the cost across that time, bringing the cost per TiB-month down to a nice reasonable $3,520.

[1] https://blog.storagecraft.com/data-storage-lifespan/

rbobby · 3 years ago
If I recall correctly the read/write head of a floppy drive rested directly on the media. This meant the disks wore out faster the more you used them.
rbobby commented on Two-minute battery changes push India’s delivery riders to switch to e-scooters   theprint.in/tech/two-minu... · Posted by u/rustoo
KerrickStaley · 3 years ago
I would typically plan for 60 km between swaps, which includes a healthy error margin (I owned a Gogoro 2+ when I lived in Taiwan a year ago). Gogoro advertises 110 km but that is at 25 kph which is unrealistically slow.

60 km actually goes quite far in Taiwan, which isn’t a very big place compared to eg the United States. Gogoro has an extensive network and you only range limited in rural areas like the east coast or the central mountains.

rbobby · 3 years ago
Can you plug in a gogoro to a regular wall socket? Better a slow charge than to be stuck.
rbobby commented on A DARPA Perspective on Artificial Intelligence [pdf]   darpa.mil/attachments/AIF... · Posted by u/nulluint
Animats · 3 years ago
"Contextual adaptation" is what they want, but that doesn't mean it's coming in the near future. However, this does mean that funding for research on it will be available.

As I've said for years, the big lack in AI is in the "common sense" and unstructured manipulation area. Nobody can build something with squirrel levels of manipulation and agility, even in simulation. Robot manipulation in unstructured situations is still very poor. The people trying to simulate C. elegans at the neuron level can't get that to work, despite a full wiring diagram and years of effort.

Something very low level is not understood. There's a Nobel Prize waiting for whomever figures that out.

rbobby · 3 years ago
> Nobody can build something with squirrel levels of manipulation and agility, even in simulation.

While not squirrel level, this impressed the heck out of me: https://ashish-kmr.github.io/rma-legged-robots/

rbobby commented on First images from James Webb telescope exceed expectations   cosmosmagazine.com/space/... · Posted by u/mooreds
JKCalhoun · 3 years ago
Considering these 'deep space' images that capture these myriad of little galaxies so far away.... The number of galaxies that must be out there is inconceivable to me.

Spitballing.

Might there be some space/time mechanism at play whereby we're actually seeing the same handful or so of galaxies? Like maybe some lensing thing.

Or weirder, we're actually seeing right around the universe itself — as though seeing the back of your head in a mirror if you look far enough. Not a topologist, but seems a toroidal universe would have a property like this: look far enough and you see the back of your head. So perhaps the same galaxies seen from multiple angles at the same time appear to be a greater number of galaxies than there actually are.

rbobby · 3 years ago
Maybe it's a quantum observer effect and the galaxies only exist because there's an observer. Dark matter/energy is need to make things balance only because we haven't been looking in all the right places.

The universe would be an odd old place if that was true.

rbobby commented on American mask makers are going out of business   nytimes.com/2022/03/05/bu... · Posted by u/prostoalex
fma · 3 years ago
The covid tests mailed to me by the US government are made in China. I'm sure the government contracted it to a US supplier who bought the tests from China...but come on . 2 years in and we aren't producing even Covid tests?

Why can't the US government mandate hospitals need to purchase a percentage of their supplies from US manufacturers in order to receive medicaid/Medicare. It can be 10, 20%, low enough to keep costs down by importing the bulk from China, but high enough to maintain a base that can be ramped up.

rbobby · 3 years ago
> Why can't the US government mandate hospitals need to purchase a percentage of their supplies from US manufacturers in order to receive medicaid/Medicare.

Trade agreements most likely.

I would not be surprised if that sort of preferential treatment would count as a subsidy and be actionable under NAFTA (whatever it's called now).

rbobby commented on Show HN: Test your shape rotation skills   0xf00ff00f.github.io/rota... · Posted by u/0xf00ff00f
rbobby · 4 years ago
12 matches, 10 seconds per shape.
rbobby commented on Trudeau tries to bring back online censorship bill   torontosun.com/opinion/ed... · Posted by u/andrenth
ipaddr · 4 years ago
The article was informative and inline with other media news sources posted on hn. I've never heard a newspaper described as weak before, what strength should they possess that they lack.
rbobby · 4 years ago
As a Torontonian... the Sun isn't much of a paper. Good for sports and fish wrap. Breathless crime reporting too. City politics. That's about it.
rbobby commented on Washington state shuts down Amazon price-fixing program nationwide   atg.wa.gov/news/news-rele... · Posted by u/ilamont
dgrin91 · 4 years ago
Arguably the more important outcome than monetary damages is that the offending program is ceased. From the press release -

> Amazon will shut down the “Sold by Amazon” program nationwide.

So in principle the problem has been stopped. Now whether Amazon will make a new "Buy from Amazon" program in 5 seconds that will have slightly modified details is to be seen...

rbobby · 4 years ago
> Arguably the more important outcome than monetary damages

Every single consumer that bought a product from one of these third party sellers, or a matching product from Amazon, has been cheated out of several dollars. For each product, for each sale... that adds up to way more than $2.5 million.

And the funny part is that a few database queries could likely surface exactly who has been harmed, how many times, and a gross sale amount affected.

Easy proof for a class action?

u/rbobby

KarmaCake day1292August 19, 2013View Original