keenerd

18 ms·

121.
by keenerd 10y ago
Please, put in blinds. If you have blinds, put in curtains to catch the light that spills around the blinds. If too much light goes through the blinds, upgrade to window shades. If that isn't enough (or you don't want to spend
122.
by keenerd 10y ago
405nm is violet. 360nm is UV. Yes, we are sensitive to it. But white LEDs emit none* of either. *Future generation of LEDs might shift from indigo (445nm) to violet to improve color rendition, but cost will go way up and efficiency wil
123.
by keenerd 10y ago
Yes, I was a little glib. But nonetheless life on Earth (not just our species) evolved with a 4100K light source at night. You are confusing color temperature with how the lights are installed. If your streetlights were 4000K and spaced p
124.
by keenerd 10y ago
Those were historically used to prevent damage to window panes, not block light. They are popular in areas that were settled when glass was very fragile/expensive and receive strong winds. Pre-glass, they were used to keep weather fr
125.
by keenerd 10y ago
While I agree with you from a standpoint of accuracy, Kelvin is still really useful. It also happens to map pretty nicely to how we perceive color. The N-step MacAdam ellipse on a 2D CCx/CCy plane is what gets used when you dig into t
126.
by keenerd 10y ago
No one carried a bandanna that they could use as an eye mask? I've done that even when the night time low was 35C.
127.
by keenerd 10y ago
> I think daylight is like 15,000K. No, it is 5500K or 6500K depending on which metric you use.
128.
by keenerd 10y ago
Let's break down their claims. > unseen blue light I have unread negative comments about this sloppy writing. They also repeatedly use the word "intense" incorrectly. Intensity refers to candela. Not lumens or temperatur
129.
by keenerd 10y ago
Gnuplot dies when fed hundreds of megabytes of data. At some point you have to start making your own tools. Here's an example: http://kmkeen.com/rtl-power/tholin_rtlsdr.png Every pixel is a datapoint. There are
130.
by keenerd 10y ago
Charging the "pack" shown is impossible. There are no wires connecting any of the batteries. He made a case that can hold a bunch of cells. Not a battery pack.
131.
by keenerd 10y ago
As someone who's first VPS was from Slicehost: Oh, not this again.
132.
by keenerd 10y ago
It would be nice if the releases were tagged in git. And if it could check /usr/share for the init stuff instead of $HOME.
133.
Space Law and Space Resources(nss.org)
1 points by keenerd 10y ago|0 comments
134.
by keenerd 10y ago
Not to latch on a minor turn of phrase, but it is a shame we've replaced the "employee relations office" with "human resources".
135.
by keenerd 10y ago
Rocky & Bullwinkle? Everything about that cartoon was top notch.
136.
The model III system expander (M3SE) project(bartlettlabs.com)
1 points by keenerd 10y ago|0 comments
137.
by keenerd 10y ago
A "showkarma" boolean in the user profile would be nice.
138.
by keenerd 10y ago
Sorry, I think I fixed it while you were typing out your post? Atmosphere conditions are usually a bit better at 9km up than at sea level. If the numbers weren't quite so bad there would be a case for detachable JATO units to get a so
139.
by keenerd 10y ago
Batteries are (in theory) optional and irrelevant for solar planes. The 747 uses about 80MW of power on takeoff, and maybe half that for cruising. The 747 has 525 m^2 of wing surface area. The sun blankets the earth with 1kW per square m
140.
by keenerd 10y ago
If you think that is bad, you should reconsider your car. A big truck is 3x more efficient than a Prius. Take a look at the numbers and analysis presented by "Why are cars unable to match the efficiency of the 18 wheeler?" http
141.
by keenerd 10y ago
I use an RK3288 as my main dev machine these days. It is faster than the 64 bit x86 thinkpad it replaced. Overall, pretty nice. Some of my experiences are summarized here: http://kmkeen.com/c100p-tweaks/
142.
Titan II Missile Explosion (1980)(encyclopediaofarkansas.net)
2 points by keenerd 10y ago|0 comments
143.
by keenerd 10y ago
Let's play write the article that should have been written! Here's my favorite example of Chinese innovation: the ESP8266. It is original hardware and 1/10th the price of the equivalent offering from TI (their CC3000), with
144.
by keenerd 10y ago
I am not an ornithologist, but my first impression is that it isn't a "funeral". Birds do occasionally hit stuff and this seems more like a response to a possibly unconscious bird. Poke it, yell a bunch, maybe it'll co
145.
by keenerd 10y ago
There is the "Workstation in a Mouse" http://www.ultratechnology.com/scope.htm Bit of a toy demo though since it only ran a single fake program. A chess game: http://www.ultratechnology.com/chess.h
146.
by keenerd 10y ago
Are you positive there is no precedence? I can think of countless examples of manually augmented reality. Let's say someone publishes a book of addresses or GPS coordinates. They claim these are hotbeds of paranormal activity. Or le
147.
by keenerd 10y ago
That would be the exact model I am talking about.
148.
by keenerd 10y ago
Usually those are shops don't sell what I'd consider affordable thermostats. The really affordable ones are meant for aquariums and are easy to pick up on ebay.
149.
by keenerd 10y ago
I presume you need to manually top off the system for evaporation? In rainy weather, is losing nutrients to overflow a problem? Any thoughts to using a 12VDC pump, powered by a solar panel and small battery? (In some places it is illegal t
150.
by keenerd 10y ago
> Two of them are special: NOR and NAND. No, IMP does this as well. It has mostly been useful for memristor logic. A B IMP 0 0 1 0 1 1 1 0 0 1 1 1 I have a suspicion there is a more general mathema

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