arctux

8 ms·

31.
The Gnome Infrastructure Is Moving to Openshift(dragonsreach.it)
3 points by arctux 8y ago|0 comments
32.
by arctux 8y ago
My undergraduate advisor had a small hole in his retina due to a high-power laser. The injury would have been far worse if it weren't a visible laser, since his blink reflex greatly reduced the damage.
33.
by arctux 8y ago
> Curious, it appears that you guys use a highly focused beam on small particles, like 1 W focused into a diffraction limited spot, right? That's correct. > How come the bio-molecules that you're manipulating with this light
34.
by arctux 8y ago
Powerful lasers can be scary, especially if they're in the infrared. The first warning you receive that it's reflecting into your eye is blood seeping into the vitreous humor from your retina's capillaries.
35.
by arctux 8y ago
Chu's prize was for laser cooling, which uses a magneto-optical trap. Magneto-optical traps confine atoms by exploiting the Zeeman effect, a spatially-varying magnetic field, and a laser with a precisely-controlled wavelength tuned to
36.
by arctux 8y ago
Yes, but high-power lasers need to be treated with respect. Reflections are capable of instantly and irreversibly blinding. There's an overused joke in labs that work with them: "do not look into laser with remaining eye". If
37.
by arctux 8y ago
Our strongest trap is powered by 1.5 W 1064 nm laser beam. (For comparison, laser pointers are usually under 0.005 W.) Unlike most other light sources, laser power measures the output power rather than electrical input power. The beam will
38.
by arctux 8y ago
Kind of? It's the only way that I know of for a laser to move a particle towards the laser's source. But it has some severe limitations: the force is extremely weak, on the order of 0.1 pN/(nm W); the particles have to refrac
39.
by arctux 8y ago
I'm a grad student in a lab that specializes in using optical tweezers for single-molecule biophysics research. I'm out sick today with nothing better to do, so feel free to ask me anything.
40.
by arctux 8y ago
Usually optical traps use 1064 nm NdYAG lasers, which is in the infrared. Most objectives aren't designed for infrared light, so the objectives used for optical trapping are usually customized.
41.
U.S. And Canada Reach Deal to Salvage Nafta(nytimes.com)
1 points by arctux 8y ago|0 comments
42.
by arctux 8y ago
Do you know if Mapbox has any plans to work with the World Bank's OpenTraffic[0]? [0]: http://opentraffic.io
43.
Mozilla's Common Voice: building an open, multilingual speech corpus(voice.mozilla.org)
3 points by arctux 8y ago|0 comments
44.
On transitioning from Google Maps API to OpenStreetMap and Leaflet.js(neilgunton.com)
2 points by arctux 8y ago|0 comments
45.
Are Facebook and YouTube quasi-governmental actors?(economist.com)
87 points by arctux 8y ago|137 comments
46.
by arctux 8y ago
You should try DNS66 [0], which does not require root. It acts as a VPN on Android and returns 0.0.0.0 when any app tries to resolve the IP address of an ad-serving domain. Other network traffic passes through unmodified, so it's very
47.
by arctux 8y ago
I was using DNS66, much is user friendly and very effective. Unfortunately, it is implemented as a VPN, and Android will allow one VPN to be active at a time.
48.
by arctux 8y ago
I'm using the user space implementation.
49.
by arctux 8y ago
I've been using Wireguard on both my laptop and my Android phone for about two months. I've been using the wg-quick systemd units, and everything has worked amazingly well. The only downside I've notice is slightly increased
50.
Using deep learning to extract features from aerial imagery using Robosat(openstreetmap.org)
1 points by arctux 8y ago|0 comments
51.
Senator Ron Wyden on Breaking Up Facebook, Net Neutrality, and Internet Law(theverge.com)
1 points by arctux 8y ago|0 comments
52.
by arctux 8y ago
It seems to be somewhat particular about relation IDs. I have it working for Palo Alto, with relation ID 1544955. If you want to try this for your city, I recommend zooming in the city on openstreetmap.org, clicking the "Query features
53.
by arctux 8y ago
Some projects I support: GIMP: https://liberapay.com/GIMP/ Mastodon: https://liberapay.com/Mastodon/ Matrix: https://liberapay.com/matrixdotorg/ Syncthing: https:/&#x2F
54.
Liberapay: a non-profit and open-source recurrent donations platform(liberapay.com)
5 points by arctux 8y ago|2 comments
55.
by arctux 8y ago
To be clear, I find Facebook and Google's tracking-based advertisement business model repugnant. I was only giving credit as to the transparency report, which it publishes despite not being required to do so.
56.
by arctux 8y ago
There are a good number of valid points, but the article's arguments in support of SOPA and PIPA are weak. Even assuming that online copyright violations are a cancer on the economy, there needs to be some sense of proportionality. Mos
57.
Embeddable OpenStreetMap-based interactive maps for Wikipedia(blog.wikimedia.org)
3 points by arctux 8y ago|0 comments
58.
RoboSat: open-source, end-to-end feature extraction from satellite imagery(blog.mapbox.com)
4 points by arctux 8y ago|0 comments
59.
French, German, and Welsh Added to Mozilla's Common Voice Project(voice.mozilla.org)
1 points by arctux 8y ago|0 comments
60.
Protecting Privacy Is a Civil Rights Issue(nytimes.com)
1 points by arctux 8y ago|0 comments

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