looks like cuttlefish spends energy to change colour/texture, but not to sustain it, like e-ink display
https://www.nytimes.com/2018/02/15/science/cuttlefish-camouflage-neurons.html
https://www.nytimes.com/2018/02/15/science/cuttlefish-camouflage-neurons.html
NY Times
The Cuttlefish, a Master of Camouflage, Reveals a New Trick (Published 2018)
These relatives of the octopus and squid save energy by effortlessly extending structures under their skin that help them hide.
hilarious copyright crap - make a picture from clip art, then claim copyright infringement on others who share your *sources*
https://2600.com/print/27097
https://2600.com/print/27097
TLDR: Logging in to Chase Bank gives you access to another users' account (maybe the login sessions got mixed up)
> Your account is both safe and compromised until checked
https://www.reddit.com/r/personalfinance/comments/7zbecv/chase_bank_may_be_experiencing_a_substantial_hack/
> Your account is both safe and compromised until checked
https://www.reddit.com/r/personalfinance/comments/7zbecv/chase_bank_may_be_experiencing_a_substantial_hack/
reddit
Chase Bank may be experiencing a substantial hack or system failure
EDIT 1: As comments have pointed out below, logging in might make you more vulnerable to the issue depending on the cause. One alternative may be...
LOL. Since 2007, I remember multiple presentations on major security conferences, with videos, including US-based ones, of people going through Border Control in US, UK, EU etc. with completely fake biometric passports (invalid signatures, issued by fictional countries, etc etc.) — and this memo says that at least US CBP *still*, in 2018, does not have software to verify them at all! This explains things %)
https://www.wyden.senate.gov/imo/media/doc/wyden-mccaskill-epassport-security-letter-to-cbp.pdf
UPD: submitted to HN, https://news.ycombinator.com/edit?id=16439611
https://www.wyden.senate.gov/imo/media/doc/wyden-mccaskill-epassport-security-letter-to-cbp.pdf
UPD: submitted to HN, https://news.ycombinator.com/edit?id=16439611
metalenses from metamaterials!
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-2-1573
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-2-1573
www.osapublishing.org
Large area metalenses: design, characterization, and mass manufacturing
Optical components, such as lenses, have traditionally been made in the bulk form by shaping glass or other transparent materials. Recent advances in metasurfaces provide a new basis for recasting optical components into thin, planar elements, having similar…
Slack closes IRC and XMPP gateways.
https://news.ycombinator.com/item?id=16539857
https://news.ycombinator.com/item?id=16539857
priors are a big deal indeed. also, awesome interactive demonstrations
https://rach0012.github.io/humanRL_website/
https://rach0012.github.io/humanRL_website/
rach0012.github.io
Investigating Human Priors for Playing Video Games
Dubey, Agrawal, Pathak, Griffiths, Efros. Investigating Human Priors for Playing Video Games.
> On a Samba 4 AD DC any authenticated user can change other users' passwords over LDAP, including the passwords of administrative users and service accounts.
https://www.samba.org/samba/security/CVE-2018-1057.html
https://www.samba.org/samba/security/CVE-2018-1057.html
Hybrid Forecasting of Chaotic Processes: Using Machine Learning in Conjunction with a Knowledge-Based Model
TLDR: Combining simulation with ML gives impressive improvement in predicted time horizon
https://arxiv.org/pdf/1803.04779.pdf
TLDR: Combining simulation with ML gives impressive improvement in predicted time horizon
https://arxiv.org/pdf/1803.04779.pdf
One undeniably good thing that came with cryptocurrencies is that the value of formal verification is much better recognized and easier to explain now :)
> Then some formal methods folk got the first two challenges finished and started working on the third. Then Vitalik Buterin retweeted me, a whole host of naysayers jumped on board, and Twitter locked my account. Twice.
https://www.hillelwayne.com/post/theorem-prover-showdown/
> Then some formal methods folk got the first two challenges finished and started working on the third. Then Vitalik Buterin retweeted me, a whole host of naysayers jumped on board, and Twitter locked my account. Twice.
https://www.hillelwayne.com/post/theorem-prover-showdown/
Hillel Wayne
The Great Theorem Prover Showdown
Functional programming and immutability are hot right now. On one hand, this is pretty great as there’s lots of nice things about functional programming. On the other hand, people get a little overzealous and start claiming that imperative code is unnatural…
Looking for a specific kind of a stable topological sort algorithm: https://cs.stackexchange.com/questions/91553/stable-topological-sort-algorithm-preserving-chains