Hacker News: EMCymatics

New comment by EMCymatics in "Touchscreens are out, and tactile controls are back"

EMCymatics — Sun, 03 Nov 2024 18:31:19 +0000

I can't believe they didn't get immediately cancelled after they put a hole in a navy destroyer.

New comment by EMCymatics in "Apple iPhone 16 Is Now Illegal in Indonesia, Ban Leaves Tourists in the Lurch"

EMCymatics — Mon, 28 Oct 2024 03:48:38 +0000

Is it political for Apple to forgo investment?

New comment by EMCymatics in "Hezbollah pager explosions kill several people in Lebanon"

EMCymatics — Tue, 17 Sep 2024 18:00:04 +0000

Possibly hydrogen explosion.

New comment by EMCymatics in "China is beating the U.S. on high-tech nuclear power by about 15 years"

EMCymatics — Mon, 17 Jun 2024 19:33:58 +0000

Only cooperation with France and the west has made this possible. There has already been at least one damaging incident that needed a group think to solve.

New comment by EMCymatics in "Augmenting biological intelligence with RL in C.elegans using optogenetics [pdf]"

EMCymatics — Mon, 17 Jun 2024 17:47:53 +0000

404 error

New comment by EMCymatics in "Augmenting biological intelligence with RL in C.elegans using optogenetics [pdf]"

EMCymatics — Mon, 17 Jun 2024 17:24:08 +0000

They have already done optogenetics on non-human primates.

https://www.frontiersin.org/articles/10.3389/fnana.2023.1193...

However, I think those methods of triggering opsins are rather invasive (implants). I don't think it would be hard to design light activated opsins to recieve frequencies in the optical window of skin/bone. If I remember correctly the human body is somewhat resistant genetic transfection, so we have that going for us, which is great.

There is an optical window for skin in the near infrared band.

https://en.wikipedia.org/wiki/Near-infrared_window_in_biolog...

Bone optical windows are being explored though that has some interference with water.

https://ui.adsabs.harvard.edu/abs/2016SPIE.9689E..4JS/abstra...

Better watch what you put in your body /s

Fat Leonard bribery cases fall apart because of prosecution blunders

EMCymatics — Tue, 21 May 2024 05:22:40 +0000

Article URL: https://www.washingtonpost.com/investigations/2024/05/20/fat-leonard-navy-scandal/

Comments URL: https://news.ycombinator.com/item?id=40424464

Points: 4

# Comments: 0

New comment by EMCymatics in "Ilya Sutskever to leave OpenAI"

EMCymatics — Wed, 15 May 2024 05:15:45 +0000

Yikes

New comment by EMCymatics in "Jim Simons has died"

EMCymatics — Fri, 10 May 2024 22:03:51 +0000

RIP.

He was a real cool guy.

New comment by EMCymatics in "Steve Albini has died"

EMCymatics — Wed, 08 May 2024 19:42:28 +0000

This is devastating. One of the best there ever was.

New comment by EMCymatics in "Vets fret as private equity snaps up clinics, pet care companies"

EMCymatics — Tue, 07 May 2024 01:59:49 +0000

This needs to be talked about more.

New comment by EMCymatics in "Multi-million dollar Cheyenne supercomputer auction ends with $480,085 bid"

EMCymatics — Sun, 05 May 2024 03:05:52 +0000

I don't believe that.

New comment by EMCymatics in "Multi-million dollar Cheyenne supercomputer auction ends with $480,085 bid"

EMCymatics — Sun, 05 May 2024 01:07:34 +0000

Why was this decommissioned?

New comment by EMCymatics in "As private equity dominates wheelchair market, users wait months for repairs"

EMCymatics — Fri, 03 May 2024 20:58:48 +0000

We should be more vocal in our opposition

New comment by EMCymatics in "TSMC unveils 1.6nm process technology with backside power delivery"

EMCymatics — Thu, 25 Apr 2024 17:09:14 +0000

Thanks for the source. I'm glad Bell labs pounced on the opportunity.

New comment by EMCymatics in "IBM to buy HashiCorp in $6.4B deal"

EMCymatics — Wed, 24 Apr 2024 21:05:42 +0000

How is Red Hat doing?

New comment by EMCymatics in "FDA clears first over-the-counter continuous glucose monitor"

EMCymatics — Wed, 06 Mar 2024 19:50:54 +0000

It can help your health but I'm concerned how often the data will get abused.

New comment by EMCymatics in "Meta outage"

EMCymatics — Tue, 05 Mar 2024 18:45:21 +0000

Offline gaming should never have been destroyed.

Wonder what data they collect from gamers.

New comment by EMCymatics in "Combating olive oil fraud with nuclear innovations"

EMCymatics — Sun, 03 Mar 2024 23:07:21 +0000

They buried the techniques in a few places.

Laser induced breakdown spectrometry (LIBS) https://appliedspectra.com/technology/libs.html

Laser ablation molecular istopic spectroscopy (LAMIS) https://pubs.rsc.org/en/content/articlelanding/2016/ja/c5ja0...

Linked in the article is another article that elaborates

https://www.iaea.org/newscenter/news/new-crp-implementation-...

*Enhancing Nuclear Analytical Techniques to Meet the Needs of Forensic Science’ (F11021)*

https://www.iaea.org/projects/crp/d52040

>This project will consider applications based on hand-held and portable devices including (but not limited to) ion mobility spectrometry (IMS), near infra-red (NIR) and X-ray fluorescence (XRF) spectrometers and some bench-top laboratory instruments that have become ‘field’ transportable including laser induced breakdown spectrometry (LIBS), laser ablation molecular isotopic spectrometry (LAMIS), nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry (MS) and multi-spectral imaging (MSI). This CRP is conducted jointly with the Nuclear Sciences Instrumentation Laboratory under CRP G42007.

*‘Field Deployable Analytical Methods to Assess the Authenticity, Safety and Quality of Food (D52040/G42007)*

https://www.iaea.org/projects/crp/f11021

>ion and neutron beam techniques for elemental and molecular analysis is well established and such services are available through a great number of laboratories in the IAEA Member States operating ion beam accelerator or research reactor centers

Isotope spectroscopy I knew of:

For carbon/water isotope determination with spectroscopy you can use cavity ring-down spectroscopy (CRDS) for gas state stable isotopes (water, CO, CO2, CH4). https://en.wikipedia.org/wiki/Cavity_ring-down_spectroscopy https://www.picarro.com/environmental/support/literature/mea...

Picaro instrument is ok at precision, cleaning is not fun, and matrix effects suck. Laser lifetime leaves much to be desired.

New comment by EMCymatics in "Facial recognition error message on vending machine sparks concern at university"

EMCymatics — Fri, 23 Feb 2024 06:14:53 +0000

Worked at a place that put your last four of your ssn for the vending machine. I really hated that.