Search found 589 matches

by keithl
Tue Nov 08, 2016 4:51 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1756: "I'm With Her"
Replies: 446
Views: 65750

Re: 1756: "I'm With Her"

Don't waste your vote!
Give it to the Republicans and Democrats to waste for you!
by keithl
Tue Nov 01, 2016 11:40 pm UTC
Forum: What If?
Topic: What-If 0152: "Flood Death Valley"
Replies: 43
Views: 14602

Re: What-If 0152: "Flood Death Valley"

I interpreted it (knowing that I wouldn't be quite right) as The Great Lord Randall, from context. But it's probably an ETLA that has been used in/inspired by the full text in Time or the 'secret' subforus, that I've not read. You're doing this on purpose, aren't you? Possibly, but that one's prett...
by keithl
Sat Oct 22, 2016 10:00 pm UTC
Forum: What If?
Topic: What-If 0152: "Flood Death Valley"
Replies: 43
Views: 14602

Re: What-If 0152: "Flood Death Valley"

Ah, right. Still, I don't think steam would bubble out of the surface of the ocean, for the same reason it already doesn't above thermal vents. (The pressure is too high for it to be gaseous, plus the water around it would carry away heat pretty effectively.) gmalivuk would be correct for a small h...
by keithl
Fri Oct 21, 2016 6:02 am UTC
Forum: What If?
Topic: What-If 0152: "Flood Death Valley"
Replies: 43
Views: 14602

Re: What-If 0152: "Flood Death Valley"

Oh, come now. You call that a What-If? The question was " ... could we dig a hole to the ocean ... ". Not a ditch, canal ... I guess TGLR was so distracted by temperature records that he neglected to answer the actual question. About a hole. Even a tunnel barely qualifies as a hole, and ce...
by keithl
Fri Sep 02, 2016 5:06 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1728: "Cron Mail"
Replies: 21
Views: 6176

Re: 1782: "Cron Mail"

Randall wants more efficient tools to manage cron output, and hopes to get useful suggestions from this forum. So do I. Sysadmin gurus, start explaining! Alt explanation 1: Since the "explainxkcd.com" page for this comic is also difficult to understand, Randall is hoping this comic will mo...
by keithl
Fri Aug 26, 2016 10:55 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1725: "Linear Regression"
Replies: 27
Views: 6401

Re: 1725: "Linear Regression"

Physicists are not immune, especially if they offset 3 sigma results with the logarithm of the megaeuros spent acquiring them, or of the hundreds of papers written about them. FYI, after six more months of intense data gathering, delaying data taking for other scheduled projects at LHC, the 750 GeV ...
by keithl
Mon Aug 22, 2016 6:55 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1723: "Meteorite Identification"
Replies: 30
Views: 7264

Re: 1723: "Meteorite Identification"

I've seen many meteors fall (I go camping during meteorite showers), but I've never found a meteorite. About a decade ago, I saw an extremely bright meteor east of Portland, Oregon, early in the morning on the way to the airport. Someone else at the airport had seen the same meteor a few miles up th...
by keithl
Mon Aug 15, 2016 5:22 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1720: "Horses"
Replies: 55
Views: 7917

Re: 1720: "Horses"

Absent-minded scientist Pierre Curie was killed by a horse-drawn carriage. Horseback riding cripples and kills more young people than heroin. Pro-tips: avoid science, and inject heroin before mounting a horse.
by keithl
Mon Aug 15, 2016 5:18 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1720: "Horses"
Replies: 55
Views: 7917

Re: 1720: "Horses"

And even if you've never witnessed it yourself, there was this guy named Disney who used to make these nature films....) Disney made fiction films, sometimes killing animals as props. . He helped exile American rocket scientists (Frank Molina and Qian Xuesen) while promoting former Nazis. Now his l...
by keithl
Wed Jul 27, 2016 10:25 pm UTC
Forum: What If?
Topic: What-If 0047: "Alien Astronomers"
Replies: 42
Views: 16909

Re: What-If 0047: "Alien Astronomers"

Two years later - will anyone read this? The most luminous emissions life makes are forest fires or large grassland fires, viewed on the night side of the Earth. The spectrum of the combustion products will be unique. With a large enough telescope to resolve a planet from the Sun's disk, anomalous b...
by keithl
Wed Jul 27, 2016 9:41 pm UTC
Forum: What If?
Topic: What-If 0151: "Sun Bug"
Replies: 43
Views: 12441

Re: What-If 0151: "Sun Bug"

To make a measly 3.84E26 W like our Sun, the hole would weigh 968 kilograms. The Schwarzschild radius of a 968 kg black hole is 10 -24 meters, which is millions of times smaller than a proton. In Niagara Straw , we saw what happens when you try to squeeze 3000 tonnes of water through a 3.8 x 10 -5 ...
by keithl
Tue Jul 26, 2016 12:01 am UTC
Forum: What If?
Topic: What-If 0151: "Sun Bug"
Replies: 43
Views: 12441

Re: What-If 0151: "Sun Bug"

Suggested AltWhatIf: Randall mentions an enormous firefly immediately collapsing into a black hole, but how about making a black hole as luminous as the Sun? How many fireflies would that take? Hawking radiation power is inversely proportional to the square of the mass: 3.562e32 W-kg 2 . To make a ...
by keithl
Wed Jul 06, 2016 5:59 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1703: "Juno"
Replies: 38
Views: 5191

Re: 1703: "Juno"

I'd be a bit curious about such a claim. How exactly do you define "arrive"? Jeez, doen u giys no nuttin? Juno "ariyvd" win she smakt intoo kristalin sfeer number 6, liyk wut Taw Limme sed. It wuz Jewlie 4, aftur dark. I herd duh bang owtsiyd, and der wuz a briyt liyt and sum la...
by keithl
Fri May 20, 2016 5:39 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1683: "Digital Data"
Replies: 122
Views: 16952

Re: 1683: "Digital Data"

We are very inaccurate digital copies of bacteria, and sooner or later, the raw material for making more.
by keithl
Mon Apr 25, 2016 5:24 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1672: "Women on 20s"
Replies: 218
Views: 30087

Re: 1672: "Women on 20s"

We should put pictures of body parts on US currency. That will encourage young people to go to medical school, and accumulate huge debt in order to work long hours for surprisingly low wages taking care of aging baby boomers like myself. We can replace the picture of Andrew Jackson with a hemorrhoid...
by keithl
Mon Apr 25, 2016 1:17 am UTC
Forum: What If?
Topic: What-If 0149: "Pizza Bird"
Replies: 57
Views: 14392

Re: What-If 0149: "Pizza Bird"

https://www.youtube.com/watch?v=u4xlYpKrCnU Fulton Surface-to-Air Recovery System FTW! Way cool - an airplane snagging a line lofted by a balloon! So why not a line lofted by a kettle of vultures? A column of Rüppell's vultures climb a thermal carrying a 10 km carbon nanotube filament, very light a...
by keithl
Fri Apr 15, 2016 3:43 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1668: "Singularity"
Replies: 26
Views: 6044

Re: 1668: "Singularity"

"OKAY, COOL. -- IM GONNA GO LOOK FOR A BOOK OR SOMETHING. ..." I've got a basement full of books. Mostly technical, lots of physics/chemistry/engineering handbooks. Some popsci, like an old Ray Kurzweil book predicting the singularity in 1995. A mathematics book about infinity, which expla...
by keithl
Thu Apr 07, 2016 1:09 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1664: "Mycology"
Replies: 47
Views: 6586

Re: 1664: Mycology

Some species may undergo Darwinian selection for scientific novelty and journal paper popularity. Species whose behavior results in highly cited papers lead to increased funding and more lab space devoted to the progeny of those lab organisms. We may think we are studying the behavior of lab animals...
by keithl
Sat Apr 02, 2016 1:19 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1663: "Garden"
Replies: 671
Views: 108859

Re: 1663: ???

Gammarad wrote:Now it says:

Image

Code: Select all

> cal 4 2017
     April 2017     
Su Mo Tu We Th Fr Sa
                   1
 2  3  4  5  6  7  8
 9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30
by keithl
Thu Mar 24, 2016 3:12 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1659: Tire Swing
Replies: 11
Views: 2810

Re: 1659: Tire Swing

But if we find a practical (or even impractical) use for those old tires, what will our local mosquito population do for a breeding area? ... Fear not! The cavity at the bottom of the hanging tire can still hold plenty of water, perhaps more than the tire lying on its side in a junk yard, certainly...
by keithl
Wed Mar 23, 2016 9:25 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1659: Tire Swing
Replies: 11
Views: 2810

Re: 1659: Tire Swing

So, did they take the tree and the rope from other guys, too, or did they take a guy off the hanging rope?
by keithl
Wed Mar 16, 2016 7:10 pm UTC
Forum: What If?
Topic: What-If 0148: "Eat the Sun"
Replies: 40
Views: 14645

Re: What-If 0148: "Eat the Sun"

This gets a lot more interesting if "we" is properly redefined. Biohuman brains die, and are suboptimum for long term survival. We will soon add external enhancements and high bandwidth connections to biobrains, and before long "we" will become those enhancements, avoiding pesky ...
by keithl
Tue Mar 15, 2016 6:56 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1655: "Doomsday Clock"
Replies: 64
Views: 9663

Re: 1655: "Doomsday Clock"

DST - there will be a ballot initiative here in Oregon to get rid of it by 2018. The best reason is that Oregon's foreign trading partners are mostly in east Asia. China, India, Indonesia, Japan, South Korea ... all use standard time, all year. In fact, all of China is one time zone, spanning 61 deg...
by keithl
Thu Feb 25, 2016 9:16 pm UTC
Forum: What If?
Topic: What-If 0146: "Stop Jupiter"
Replies: 60
Views: 14659

Re: What-If 0146: "Stop Jupiter"

What if we tried more planets? This will take gigayears and ludicrously precise measurements to arrange. Stopping Jupiter requires a lot of mass, and there is not nearly enough mass in the solar system and Oort cloud to do it. However, there are a lot of dwarf planets out there, moseying between the...
by keithl
Thu Feb 11, 2016 8:09 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1641: "Hot Dogs"
Replies: 49
Views: 8298

Re: 1641: "Hot Dogs"

It could be worse -- what if hot dogs came in packages of 10 but hot dog buns came in packages of 4*π ? Then you could never buy enough packages to match all hot dogs to a bun. The new packaging concept will be continuous hot dog and continuous bun wrapped around spools. 4*π of bun (or hot dog) is ...
by keithl
Wed Jan 27, 2016 8:41 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1635: "Birdsong"
Replies: 40
Views: 7420

Re: 1635: "Birdsong"

Notes do not have 180° rotational symmetry! The cartoon bird is flying back and forth, perhaps inverted above the frame, so some of the cartoon notes may appear rotated or flipped in two dimensional cartoon space. Solid notes lingering in cartoon air are an evolved protective response for cartoon b...
by keithl
Sat Jan 23, 2016 7:51 pm UTC
Forum: What If?
Topic: What-If 0141: "Sunbeam"
Replies: 81
Views: 20569

Re: What-If 0141: "Sunbeam"

And another question, when building a Dyson Sphere/Swarm with mirrors, aren't we already focussing the light from the star in the building progress? Every unit (mirror) that gets put in it's position blocks the light from going straight outwards to back to the star or another direction. ... Really,...
by keithl
Sat Jan 23, 2016 11:05 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1633: "Possible Undiscovered Planets"
Replies: 104
Views: 14095

Re: 1633: "Possible undiscovered planets"

The Large Synoptic Survey Telescope will push the boundary of "stuff we can see with telescopes" to the right about an order of magnitude, after science operations begin in 2022. LSST will not see as far as some of the largest telescopes, but it will digitally image the entire southern sky...
by keithl
Thu Dec 31, 2015 7:30 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1623: "2016 Conversation Guide"
Replies: 94
Views: 16151

Re: 1623: "2016 Conversation Guide"

The " Magic Roundabout "? Double ugh. The Swindon magic roundabout? That one's nothing. The Hemel Hempstead one, now that one makes life interesting. Only six legs? With visibility? That's a walk in the park. I invite you to try Church Circle in Annapolis MD , which is narrow, with eight ...
by keithl
Wed Dec 30, 2015 7:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1623: "2016 Conversation Guide"
Replies: 94
Views: 16151

Re: 1632: "2016 Conversation Guide"

Self-driving cars coming soon: no. Read David A. Mindell's recent "Our Robots, Ourselves". Mindell has worked on semiautonomous ocean exploration robots since the beginning, and is also a private pilot with considerable "electronic cockpit" experience. In spite of the ignorant pr...
by keithl
Mon Dec 21, 2015 8:09 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1619: Watson Medical Algorithm
Replies: 55
Views: 11161

Re: 1619: Watson Medical Algorithm

It's uncanny - this is precisely the procedure described in the upcoming 20th edition of "Harrison's Principles of Internal Medicine", the standard reference for clinical practice. I just downloaded the galleys from McGraw Hill's experimental new document management system, also from IBM r...
by keithl
Fri Dec 18, 2015 6:32 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1618: "Cold Medicine"
Replies: 32
Views: 7236

1618: "Cold Medicine"

http://imgs.xkcd.com/comics/cold_medicine.png Title text: "Seriously considering buying some illegal drugs to try to turn them back into cold medicine." Two recent comics with "cold" themes. I bet Randall normally works in isolation, and has a cold from the stress and the crowd ...
by keithl
Tue Dec 15, 2015 9:21 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1616: "Lunch"
Replies: 71
Views: 14995

Re: 1616: "Lunch"

Favorite pizza toppings? Let's descend into that brand of madness, shall we? My favorite pizza topping event occured in the dorm at Berkeley circa 1974. Sunday night, my floormates would get stoned and watch Monty Python's Flying Circus on TV. And get the munchies, and eat anything in sight. Before...
by keithl
Mon Dec 14, 2015 7:31 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1616: "Lunch"
Replies: 71
Views: 14995

Re: 1616: "Lunch"

Randall is talking about the nutritional equivalent, not palatability - except that most commercial pizza adds sugar. Right now, I'm eating to survive, correcting years of nutritional abuse which had serious medical consequences, so I think of pizza as tomato pastry, no more healthy than a jelly don...
by keithl
Sat Dec 05, 2015 5:27 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1612: "Colds"
Replies: 41
Views: 7285

Re: 1612: "Colds"

This is probably the biggest GOOMHR of my life... First post - welcome to the forums. Visited UC Berkeley today, taking the bus to the motel this evening, a polite Cantonese student sitting across the aisle. After the attractive ABC student he was talking to leaves, a heavyset woman in full hippie ...
by keithl
Fri Dec 04, 2015 5:45 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1611: "Baking Soda and Vinegar"
Replies: 43
Views: 8793

Re: 1611: "Baking Soda and Vinegar"

I fondly remember the model supernova I made for my last science fair. Authentic 1/1000 scale. I made it off the planet Krypton in time, so did some brat kid named Kal-el. He had a better public relations team.
by keithl
Tue Dec 01, 2015 6:35 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1610: "Fire Ants"
Replies: 36
Views: 8686

Re: 1610: "Fire Ants"

The stationary ants referred to above perform a very valuable service to the colony. They attract scientists, who establish and feed more colonies in order to study stationary ants. Thus, standing still and puzzling the hell out of scientists confers a strong evolutionary advantage to ant colonies w...
by keithl
Fri Nov 20, 2015 7:43 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1606: "Five-Day Forecast"
Replies: 115
Views: 18130

Re: 1606: "Five-Day Forecast"

Typical useless short-term forecasts. What if I need reliable data for the next five big bangs?!? Then you should be using Planck scale temperature units, 1 TP = 1.416833e32 K . Today in Portland Oregon it is a chilly 1.95e-30 TP. If the Earth collides with a relativistic black hole this afternoon,...
by keithl
Sat Nov 07, 2015 5:45 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1600: "MarketWatch"
Replies: 17
Views: 4210

Re: 1600: "MarketWatch"

ETA: Lehrer was (is?) a Mathematics lecturer, so I'm sure he'd appreciate the pornographic potential of a graph. Not pornographic, but: http://britneyspears.ac/physics/basics/images/britneycbvb.jpg from Britney Spears' Guide to Semiconductor Physics . It's weird to realize she is approaching middle...
by keithl
Fri Nov 06, 2015 6:51 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1600: "MarketWatch"
Replies: 17
Views: 4210

Re: 1600: "MarketWatch"

I ran the last 2380 million NYSE transactions through a bandpass filter and a frequency discriminator and binned the results into 1679 binary time windows. Plotting the binary results on a 23x73 grid, I got this:
xkcdA2.png
xkcdA2.png (125.05 KiB) Viewed 3729 times

Thus proving a connection between random noise, SETI, NYSE, and xkcd.

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