Search found 92 matches

by hamjudo
Sat Mar 10, 2018 8:08 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1965: "Background Apps"
Replies: 33
Views: 8094

Re: 1965: "Background Apps"

There are uncommon exceptions including background GPS, downloading and music. Also if you have background refresh on, but mine is off by default. So... closing them helps maybe rarely, but probably not. Maybe GPS is uncommon for you... It seems to me that most store apps allow you to use GPS, so y...
by hamjudo
Thu Jan 25, 2018 12:13 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1944: "The End of the Rainbow"
Replies: 48
Views: 6615

Re: 1944: "The End of the Rainbow"

Long before the gold layer is a millimeter thick, the waste heat from the mining system will boil away the oceans, unless the mining process is slow enough to get the heat off planet without killing us. Even a micron per year would probably be deadly. Do you really want to vent the heat off from th...
by hamjudo
Tue Jan 23, 2018 2:59 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1944: "The End of the Rainbow"
Replies: 48
Views: 6615

Re: 1944: "The End of the Rainbow"

To be fair, the amount of gold in Earth's own core would do that job fairly well, too. (It wouldn't crush *everything* because it'd only be 4 meters or so, but it'd kill anyone out in the open and crush most buildings, for sure.) Before we can calculate the size of the whole[sic] we need, there are...
by hamjudo
Mon Jan 22, 2018 3:27 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1944: "The End of the Rainbow"
Replies: 48
Views: 6615

Re: 1944: "The End of the Rainbow"

To be fair, the amount of gold in Earth's own core would do that job fairly well, too. (It wouldn't crush *everything* because it'd only be 4 meters or so, but it'd kill anyone out in the open and crush most buildings, for sure.) I am having trouble imagining a core mining technique that would leav...
by hamjudo
Sun Jan 21, 2018 4:37 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1943: "Universal Dreams"
Replies: 39
Views: 4792

Re: 1943: "Universal Dreams"

I remember a vivid dream where I was helping to interview Al Yankovic, the older one, not "Weird". This was an NPR dream. From back when I was listening to NPR news. Now their news makes me mad, frustrated, and depressed. I often helped or tried to help the local voices do the station iden...
by hamjudo
Thu Jan 18, 2018 7:49 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1943: "Universal Dreams"
Replies: 39
Views: 4792

Re: 1943: "Universal Dreams"

Again, the dreams in this category seem to be kind of homomorphic. It's as though the dream is the general concept (e.g. "trying to do something fairly straightforward but failing), and the specific instantiation of this gets filled in differently each time. Whoever handles dream continuity fo...
by hamjudo
Fri Oct 13, 2017 1:18 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1902: "State Borders"
Replies: 61
Views: 9558

Re: 1902: "State Borders"

If Wisconsin gets the Upper Peninsula from Michigan, does that mean Michigan finally gets Toledo from Ohio? If we get Toledo, can we get people to pronounce it "Too Lee Due"? That pronunciation is more fun than the one they use now. Michigan-Ohio War over Toledo Strip . [Gaaah, Ninja'd by ...
by hamjudo
Fri Aug 18, 2017 4:09 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1878: "Earth Orbital Diagram"
Replies: 45
Views: 7183

Re: 1878: "Earth Orbital Diagram"

Flumble wrote:Are the distances and sizes to scale on this diagram?


Not even close to scale. In the real world, the sun and moon are the same size. I know, I've been outside and seen them.
by hamjudo
Fri Jun 02, 2017 4:28 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1845: "State Word Map"
Replies: 53
Views: 9927

Re: 1845: "State Word Map"

Challenge: choose a normalization that both makes fun of Florida, and selects a hyphenated word for Michigan, but no other state. Bonus points for something that messes with Texas.
by hamjudo
Wed Apr 19, 2017 12:18 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1826: "Birdwatching"
Replies: 44
Views: 13290

Re: 1826: "Birdwatching"

Has anyone found the birds in the image yet?
by hamjudo
Fri Sep 16, 2016 3:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 523
Views: 79577

Re: 1732: "Earth Temperature Timeline"

A "Sisyphus battery," using gravitational potential with solids instead of liquids, seems less practical at scale. But it's not like I've really thought about it. Here is a serious looking proposal to use railroad technology to store hundreds of megawatt hours by moving many railroad car ...
by hamjudo
Thu Sep 15, 2016 6:43 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1733: "Solar Spectrum"
Replies: 16
Views: 5023

Re: 1733: "Solar Spectrum"

I have reverse engineered an insignificant part of the joke. The wikipedia page for Fraunhofer lines https://en.wikipedia.org/wiki/Fraunhofer_lines only has labels for the "Major Fraunhofer lines". Our amazing cartoonist has attributed the unlabeled lines to "those giant sunglasses&qu...
by hamjudo
Sun Jul 17, 2016 6:30 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1707: "xkcd Phone 4"
Replies: 39
Views: 8029

Re: 1707: "xkcd Phone 4"

Incidentally, only a few days ago one 'water resistant' phone publicly failed to be so. I remember reading that article and seeing that "The Samsung Galaxy S7 Active stopped working after being put in a tank that simulated the effect of being about 5ft (1.5m) underwater." I was trying to ...
by hamjudo
Tue Jun 14, 2016 12:39 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1693: "Oxidation"
Replies: 46
Views: 8089

Re: 1693: "Oxidation"

I have itchy eyebrows now, and I blame xkcd and its community. Well that, and my extreme suggestibility, which I inherited from my mother. Oddly, my suggestibility only applies to some symptoms. Any time I feel like there is something crawling on my skin, it is because there is something crawling on...
by hamjudo
Wed May 04, 2016 12:17 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1676: "Full-Width Justification"
Replies: 64
Views: 15580

Re: 1676: "Full-Width Justification"

Do we need language specific snakes? Are Klingon snakes particularly warlike? Do Japanese snakes have to be able to travel vertically and horizontally? Would Arabic script snakes have to go backwards (from my point of view), which is forwards for those folks used to Arabic scripts? Is there a justif...
by hamjudo
Fri Mar 25, 2016 5:06 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1660: "Captain Speaking"
Replies: 26
Views: 5267

Re: 1660: "Captain Speaking"

Historically, after a pilot announces the wrong destination airport or otherwise suggests destination confusion, the passengers react badly, and a flight attendant notifies the flight crew. But, there is no humor that way. On the other hand, the flight attendants usually offer free drinks, so it has...
by hamjudo
Mon Feb 22, 2016 4:49 pm UTC
Forum: What If?
Topic: What-If 0146: "Stop Jupiter"
Replies: 60
Views: 21092

Re: What-If 0146: "Stop Jupiter"

I still want to know the answer to the original what if question. Answering that would have been long and boring. He probably just didn't want to dive into the complex math and change the entire content of the article. New Horizons slowed Jupiter by 10 -21 m/s, right? Jupiter is moving at 13.07 km/...
by hamjudo
Wed Feb 17, 2016 3:00 pm UTC
Forum: What If?
Topic: What-If 0146: "Stop Jupiter"
Replies: 60
Views: 21092

Re: What-If 0146: "Stop Jupiter"

I still want to know the answer to the original what if question. Assume that some alien civilisation wants to cause Jupiter to impact our sun. These distant aliens have developed a mass driver that can launch an insane number of payloads that will reach our solar system with a trajectory such that ...
by hamjudo
Thu Oct 15, 2015 4:39 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1590: "The Source"
Replies: 70
Views: 12015

Re: 1590: "The Source"

The amount of power used by a normal house running at 30 KHz? It would have certain advantages: No batteries in the remote anymore, since the power requirements for a remote can easily be picked up out of the air. Same with the smoke alarms and many other battery operated devices. They could just h...
by hamjudo
Wed Sep 16, 2015 5:26 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1578: Squirrelphone
Replies: 38
Views: 8453

Re: 1578: Chipmunk smoke detector

We have chipmunks that live in a tree in the front yard. When they see a cat (or presumably any ground based predator), they make a sound like a smoke alarm with a weak battery. It is just as annoying as a smoke detector. My first thought when being woken up by a chipmunk making that sound is "...
by hamjudo
Mon Sep 07, 2015 2:17 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1574: "Trouble for Science"
Replies: 41
Views: 10408

Re: 1574: "Trouble for Science"

Of course Bunsen burners make things colder, it's called the nozzle effect. If you want a Bunsen burner to heat something, you have to take the additional step of lighting it. I assume the controlled study did not include that step. They must have had good ventilation. It is hard to write up a study...
by hamjudo
Fri Jul 10, 2015 3:38 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1549: "XKCD Phone 3"
Replies: 40
Views: 7846

Re: 1549: "XKCD Phone 3"

Someone should make a mechanical puzzle that looks like an oversized USB A port and connector. In the unsolved state, when you attempt to insert the connector right side up it is blocked by a lever. Each time that lever is pushed, it does something to the locking mechanism. Likewise, when you put th...
by hamjudo
Sat Jun 27, 2015 6:19 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1543: "Team Effort"
Replies: 23
Views: 5710

Re: 1543: "Team Effort"

The count in this study described in this article was 37.2 trillion human cells (of course the error bars are huge, the authors solicited refinements): http://phenomena.nationalgeographic.com/2013/10/23/how-many-cells-are-in-your-body/ This was for a 70kg human. If we assume that the average human c...
by hamjudo
Fri May 08, 2015 4:09 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1521: “Sword in the Stone”
Replies: 96
Views: 18204

Re: 1521: “Sword in the Stone”

Modern English Royalty are not portrayed favorably in a lot of American media, including those media elements that claim to provide "news". If I believed any of that was remotely accurate, I would not want to be English Royalty.
by hamjudo
Fri Mar 20, 2015 2:15 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1501: Mysteries
Replies: 94
Views: 23934

Re: 1501: Mysteries

Maybe Mythbusters will get a ten year contract so they can do long term experiments to simulate the Salish Sea Feet. It seems that some types of shoes resist decay in the oceans, while remaining buoyant, and keeping their contents from being consumed. Mythbusters will need to get a bunch of cadavers...
by hamjudo
Tue Feb 24, 2015 6:00 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1490: "Atoms"
Replies: 92
Views: 17430

Re: 1490: "Atoms"

On the other hand, there is at least one case of someone still using an RTG pacemaker in the 21st century. Plus, as PinkShinyRose says, it looks like White Beret Guy's mother is now dead, so she may well have been alive early enough to be one of the people who had an RTG pacemaker. Thanks, I learne...
by hamjudo
Mon Feb 23, 2015 9:56 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1490: "Atoms"
Replies: 92
Views: 17430

Re: 1490: "Atoms"

I was thinking a pacemaker. There are still a few people living who have pacemakers implanted in the 1970s which are powered by an RTG using plutonium-238. The rated life for the electronics in a pacemaker in the early 1970s was only 5 years. Research on radioactive batteries for medical use stoppe...
by hamjudo
Sun Feb 22, 2015 9:52 pm UTC
Forum: What If?
Topic: What-If 0130: "Snow Removal"
Replies: 51
Views: 19476

Re: What-If 0130: "Snow Removal"

I calculate that it would take at least 4.7 gigawatts of heat energy to remove a foot of snow 9 feet wide at 55 MPH. The 335 J/gram only applies when the vehicle is going slow enough that it can melt all of the ice without vaporizing any of it. In the real world, snow is a very good insulator. A lit...
by hamjudo
Wed Jan 21, 2015 8:43 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1476: Ceres
Replies: 54
Views: 15146

Re: 1476: Ceres

The question is, "Who is Number One?" Wilson Greatbatch was inspector number one. I worked at his pacemaker battery factory in 1978 and 1979. It is now diversified and trades under the symbol WGL on the NYSE. Back then it was a much smaller company. I was a high school student. My first s...
by hamjudo
Thu Dec 04, 2014 12:15 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1455: "Trolley Problem"
Replies: 171
Views: 30768

Re: 1455: "Trolley Problem"

In real life, I would almost certainly do nothing, because it is unlikely that I would understand the equipment well enough to really know what was going on. In my experience, when I've thought something horrible was going to happen, it was just that I didn't see the bend in the track or totally mis...
by hamjudo
Sat Nov 29, 2014 6:22 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1453: "fMRI"
Replies: 28
Views: 8800

Re: 1453: "fMRI"

I worked on a research project in the early 1980s in the period between NMR and MRI. It was just an MR imager. We referred to it as "mister imager" when the medical doctors weren't around. I know doctors with a sense of humor now. Those particular research doctors had no sense of humor. Ba...
by hamjudo
Fri Sep 26, 2014 9:13 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1426: "Reduce your payment"
Replies: 35
Views: 12328

Re: 1426: "Reduce your payment"

If the goal is to shrink a mortgage payment, try http://en.wikipedia.org/wiki/Sanforization. At least it works on cotton and wool.
by hamjudo
Tue Sep 23, 2014 10:10 pm UTC
Forum: What If?
Topic: What-If 0112: "Balloon Car"
Replies: 31
Views: 8670

Re: What-If 0112: "Balloon Car"

Most powered lighter than air craft are shaped like blimps, not spheres. It allows a higher buoyancy to wind resistance ratio. They all have control surfaces near the tail. Some also have control surfaces near the center of gravity. Likewise, permanently moored high flying advertising balloons are a...
by hamjudo
Thu Sep 18, 2014 1:11 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1422: "My Phone is Dying"
Replies: 32
Views: 7313

Re: 1422: "My Phone is Dying"

Quick, pair this phone with a neutron phone and form a tight binary phone system. The neutron phone can strip off the outer layers of the expanding phone to prevent it from exploding.

Note that a significant amount of energy will be released in the form of deadly xray radiation.
by hamjudo
Wed Aug 27, 2014 6:48 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1413: "Suddenly Popular"
Replies: 91
Views: 20574

Re: 1413: "Suddenly Popular"

Okay folks, we've got 13 or 14 years to work on controlled hydroplaning . Let's get busy. Many boats are designed to hydroplane, and they are well controlled, so that can't be it. I'm guessing we need to come up with techniques for controlled hydroplane maneuvers in land vehicle such as a bicycles, ...
by hamjudo
Tue Aug 12, 2014 3:14 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1406: "Universal Converter Box"
Replies: 162
Views: 36353

Re: 1406: "Universal Converter Box"

What? No IBM 360/370 Bus and Tag channel cables? I managed a bunch of computers in 1987 that shared a computer room with an IBM 360/370. That is to say, it was a 9370 baby mainframe with peripherals from a variety of eras going back to the 360 era. The machine was used for developing and testing so...
by hamjudo
Fri Jun 20, 2014 6:51 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1384: Krypton
Replies: 118
Views: 21026

Re: 1384: Krypton

Whoa, things are getting a little tense here. Let's all calm down by singing a little lullaby. I suggest we sing Rock-a-Bye Baby. A relaxing song about dropping babies from trees. Here is the oldest version shown on wikipedia. http://en.wikipedia.org/wiki/Rock-a-bye_Baby The first printed version fr...
by hamjudo
Fri May 23, 2014 12:42 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1372: "Smartwatches"
Replies: 41
Views: 15525

Re: 1372: "Smartwatches"

I replaced the screen in my Nexus 5 yesterday. So I just was staring at its guts. There are several flexible cables that run through the center of the phone, the display, and the battery. With a different battery, and a couple of smart watches as displays, the Nexus 5 could be a functional flip phon...
by hamjudo
Mon May 05, 2014 5:53 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1364 - "Like I'm Five"
Replies: 59
Views: 20101

Re: 1364 - "Like I'm Five"

If your goal is to be able to explain your thesis to a five year old, then you should keep that in mind while choosing a thesis topic. Some topics are much better suited than others. Five year old children don't have a whole lot of life experience to draw on. My sister's PhD dissertation probably wi...
by hamjudo
Mon Apr 21, 2014 5:03 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1358: "NRO"
Replies: 34
Views: 9262

Re: 1358: "NRO"

Engineers at the NRO almost certainly coordinate imaging tests of simulated intelligence targets with other reconnaissance organizations. This includes entities within our own government, and those of our allies. I live near Ann Arbor Michigan, which had (and may still have) some companies that did ...

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