# Factual Questions **URL:** https://boards.straightdope.com/c/factual-questions/9.md?page=877 [Latest](https://boards.straightdope.com/latest.md) · [Categories](https://boards.straightdope.com/categories.md) · [Tags](https://boards.straightdope.com/tags.md) **Page:** 878 --- ## [How much does one app on a phone know about other apps running at the same time?](https://boards.straightdope.com/t/how-much-does-one-app-on-a-phone-know-about-other-apps-running-at-the-same-time/759413)
**Author:** [@Tired\_and\_Cranky](https://boards.straightdope.com/u/Tired_and_Cranky)\ **Replies:** 6\ **Last updated:** [July 10, 2016, 9:16pm UTC](https://boards.straightdope.com/t/how-much-does-one-app-on-a-phone-know-about-other-apps-running-at-the-same-time/759413 "2016-07-10T21:16:11Z")
I was talking with a guy the other day who drives for both Uber and Lyft. I asked him if either company ever took any steps to pressure him to drive exclusively for one company or the other. He said he’s not sure, but h… --- ## [Pipe "groaning" sound from new water heater](https://boards.straightdope.com/t/pipe-groaning-sound-from-new-water-heater/759578)
**Author:** [@Rigamarole](https://boards.straightdope.com/u/Rigamarole)\ **Replies:** 6\ **Last updated:** [July 10, 2016, 8:40pm UTC](https://boards.straightdope.com/t/pipe-groaning-sound-from-new-water-heater/759578 "2016-07-10T20:40:22Z")
The apartment people came by yesterday and said the neighbors below were complaining of water leaks, and I needed to have my water heater replaced in order to fix it. Took a couple hours for them to install the new one, … --- ## [Pneumatic diagram - will it work?](https://boards.straightdope.com/t/pneumatic-diagram-will-it-work/759496)
**Author:** [@Shai\_tan](https://boards.straightdope.com/u/Shai_tan)\ **Replies:** 11\ **Last updated:** [July 10, 2016, 6:49pm UTC](https://boards.straightdope.com/t/pneumatic-diagram-will-it-work/759496 "2016-07-10T18:49:16Z")
I don’t know much about pneumatic engineering, so I need a little advice/confirmation. I asked earlier about a different setup, but I think I’m going to go a different route. Here is a link to my proposed setup: Pneuma… --- ## [question on aaa batteries](https://boards.straightdope.com/t/question-on-aaa-batteries/759408)
**Author:** [@Randy\_Pants](https://boards.straightdope.com/u/Randy_Pants)\ **Replies:** 12\ **Last updated:** [July 10, 2016, 6:06pm UTC](https://boards.straightdope.com/t/question-on-aaa-batteries/759408 "2016-07-10T18:06:03Z")
Confused here about triple a batteries. Can someone tell me why in a 3 battery cassette why one battery is opposite the other two with regard to pos/neg and how does that work. My guess is it might have to do with para… --- ## [The legality of a pro-enemy movie being shown in U.S. movie theaters](https://boards.straightdope.com/t/the-legality-of-a-pro-enemy-movie-being-shown-in-u-s-movie-theaters/751323)
**Author:** [@Velocity](https://boards.straightdope.com/u/Velocity)\ **Replies:** 76\ **Last updated:** [July 10, 2016, 5:30pm UTC](https://boards.straightdope.com/t/the-legality-of-a-pro-enemy-movie-being-shown-in-u-s-movie-theaters/751323 "2016-07-10T17:30:26Z")
Suppose that someone decided to make a pro-Nazi or pro-ISIS movie and have it shown in US movie theaters. Now - completely disregarding for now the issue of whether theaters would even be willing to show it or not - wou… --- ## [How to Undo Glued-Together PVC Pipe?](https://boards.straightdope.com/t/how-to-undo-glued-together-pvc-pipe/759475)
**Author:** [@Atomic\_Mama](https://boards.straightdope.com/u/Atomic_Mama)\ **Replies:** 18\ **Last updated:** [July 10, 2016, 3:24pm UTC](https://boards.straightdope.com/t/how-to-undo-glued-together-pvc-pipe/759475 "2016-07-10T15:24:20Z")
Stupid me just dropped a very nice sterling silver bracelet down our totally-renovated master bathroom sink. And discovered that the plumber had glued all the pipes together!!! Is this STANDARD these days? If it were o… --- ## [Converting Ke into psi](https://boards.straightdope.com/t/converting-ke-into-psi/759489)
**Author:** [@HoneyBadgerDC](https://boards.straightdope.com/u/HoneyBadgerDC)\ **Replies:** 9\ **Last updated:** [July 10, 2016, 2:57am UTC](https://boards.straightdope.com/t/converting-ke-into-psi/759489 "2016-07-10T02:57:55Z")
If I took an arrow and shot it into a 3/4" piece of plywood and then careully measured the depth of penetration. I know the speed of the arrow, the weight of the arrow and the KE it carries as well as the momentum. How c… --- ## [Software on RFID chips?](https://boards.straightdope.com/t/software-on-rfid-chips/759280)
**Author:** [@wevets](https://boards.straightdope.com/u/wevets)\ **Replies:** 21\ **Last updated:** [July 10, 2016, 2:10am UTC](https://boards.straightdope.com/t/software-on-rfid-chips/759280 "2016-07-10T02:10:50Z")
Inspired by fiction, so taken with a grain of salt - I’m reading the opening chapters of a techno-thriller. A bit of malware on someone’s phone establishes a network with the RFID chip in a different person’s ID tag, an… --- ## [Legality of selling fan art](https://boards.straightdope.com/t/legality-of-selling-fan-art/759501)
**Author:** [@boffking](https://boards.straightdope.com/u/boffking)\ **Replies:** 1\ **Last updated:** [July 10, 2016, 12:18am UTC](https://boards.straightdope.com/t/legality-of-selling-fan-art/759501 "2016-07-10T00:18:29Z")
I go to several anime conventions a year, and this is something that is sort of controversial. I am referring to fans producing their own posters and merchandise with copyrighted characters on them and selling them at t… --- ## [The a/c is leaking](https://boards.straightdope.com/t/the-a-c-is-leaking/759448)
**Author:** [@Johnny\_L.A](https://boards.straightdope.com/u/Johnny_L.A)\ **Replies:** 8\ **Last updated:** [July 9, 2016, 11:04pm UTC](https://boards.straightdope.com/t/the-a-c-is-leaking/759448 "2016-07-09T23:04:46Z")
Last year I bought an LG Electronics 12,000 BTU portable air conditioner. It worked quite well last year. It cools the house well this year, too. But… Three days after the warranty expired, it’s dumping water on the … --- ## [Quarks](https://boards.straightdope.com/t/quarks/759316)
**Author:** [@Jake](https://boards.straightdope.com/u/Jake)\ **Replies:** 7\ **Last updated:** [July 9, 2016, 9:24pm UTC](https://boards.straightdope.com/t/quarks/759316 "2016-07-09T21:24:22Z")
Where do they come from? --- ## [Did I just download a malicious file on my Mac?](https://boards.straightdope.com/t/did-i-just-download-a-malicious-file-on-my-mac/759482)
**Author:** [@andrea\_green](https://boards.straightdope.com/u/andrea_green)\ **Replies:** 3\ **Last updated:** [July 9, 2016, 8:30pm UTC](https://boards.straightdope.com/t/did-i-just-download-a-malicious-file-on-my-mac/759482 "2016-07-09T20:30:54Z")
I just got a new MacBook and when I went to setup my standard freeware decompression apps (UnrarX) I noticed the developer’s site was offline so no official copies of the app were available. Because this is a freeware a… --- ## [Why has the flow of refugees to Germany stopped?](https://boards.straightdope.com/t/why-has-the-flow-of-refugees-to-germany-stopped/759493)
**Author:** [@chappachula](https://boards.straightdope.com/u/chappachula)\ **Replies:** 2\ **Last updated:** [July 9, 2016, 7:14pm UTC](https://boards.straightdope.com/t/why-has-the-flow-of-refugees-to-germany-stopped/759493 "2016-07-09T19:14:59Z")
Last year, over a million people streamed into Germany. This year, many fewer: 90,000 arrived in January, and only 19,000 in June. This article from a respectable(-I think!-) German news channel states a couple reason… --- ## [Air Control valves for directing air flow](https://boards.straightdope.com/t/air-control-valves-for-directing-air-flow/759411)
**Author:** [@Shai\_tan](https://boards.straightdope.com/u/Shai_tan)\ **Replies:** 4\ **Last updated:** [July 9, 2016, 4:16pm UTC](https://boards.straightdope.com/t/air-control-valves-for-directing-air-flow/759411 "2016-07-09T16:16:15Z")
I’m designing a new prop, which requires air flow to be controlled from one input, to one of three possible outputs. When one output is open, the other two need to be closed. The pressure involve is extremely low, about … --- ## [Malware? Doing Google search and getting "Ads by Must Enter Here"](https://boards.straightdope.com/t/malware-doing-google-search-and-getting-ads-by-must-enter-here/759470)
**Author:** [@Acsenray](https://boards.straightdope.com/u/Acsenray)\ **Replies:** 1\ **Last updated:** [July 9, 2016, 2:24pm UTC](https://boards.straightdope.com/t/malware-doing-google-search-and-getting-ads-by-must-enter-here/759470 "2016-07-09T14:24:21Z")
All of a sudden my Google searches on Chrome are being led of by a long series of ads labeled “Ads by MUST ENTER HERE.” there is an “X” to hide the ads, but I have never heard of this … shouldn’t ads on Google be from Go… --- ## [The right extension cord for my lawnmower?](https://boards.straightdope.com/t/the-right-extension-cord-for-my-lawnmower/759323)
**Author:** [@crazyjoe](https://boards.straightdope.com/u/crazyjoe)\ **Replies:** 17\ **Last updated:** [July 9, 2016, 2:15pm UTC](https://boards.straightdope.com/t/the-right-extension-cord-for-my-lawnmower/759323 "2016-07-09T14:15:35Z")
I have a 13 amp electric lawnmower. My lot is 100 feet wide, so a typical 100’ extension cord is not long enough to allow me to finish the job. It seems like finding 125 to 150 feet of extension cord (of any size) is i… --- ## [Freelance writing and Freelance Website](https://boards.straightdope.com/t/freelance-writing-and-freelance-website/527055)
**Author:** [@Testy](https://boards.straightdope.com/u/Testy)\ **Replies:** 9\ **Last updated:** [February 1, 2010, 8:32pm UTC](https://boards.straightdope.com/t/freelance-writing-and-freelance-website/527055 "2010-02-01T20:32:06Z")
Hi all. Becoming a writer is something I’ve wanted to so I recently checked out a website for freelance writers. People bid on various jobs and the website takes a cut when the work is done. A man asked me to write som… --- ## [How do I get rid of Drain Flies?](https://boards.straightdope.com/t/how-do-i-get-rid-of-drain-flies/585999)
**Author:** [@Sateryn76](https://boards.straightdope.com/u/Sateryn76)\ **Replies:** 20\ **Last updated:** [December 13, 2012, 8:21pm UTC](https://boards.straightdope.com/t/how-do-i-get-rid-of-drain-flies/585999 "2012-12-13T20:21:29Z")
I have yucky little fruit fly-like bugs coming out of my bathroom drain. Apparently, they’re called Drain Flies. I poured some bleach down the sink last week, and nothing much changed. I just went up to wash my hands,… --- ## [Medically-induced coma question](https://boards.straightdope.com/t/medically-induced-coma-question/759062)
**Author:** [@kaylasdad99](https://boards.straightdope.com/u/kaylasdad99)\ **Replies:** 6\ **Last updated:** [July 9, 2016, 6:58am UTC](https://boards.straightdope.com/t/medically-induced-coma-question/759062 "2016-07-09T06:58:31Z")
I don’t really know much about them, other than the fact that they exist. What is the procedure for medically inducing a coma? What about for trrminating the coma and permitting a return to consciousness? How long can i… --- ## [Real-time footage of incoming ICBM test?](https://boards.straightdope.com/t/real-time-footage-of-incoming-icbm-test/759416)
**Author:** [@Atomic\_Alex](https://boards.straightdope.com/u/Atomic_Alex)\ **Replies:** 2\ **Last updated:** [July 8, 2016, 10:15pm UTC](https://boards.straightdope.com/t/real-time-footage-of-incoming-icbm-test/759416 "2016-07-08T22:15:56Z")
I’ve been kind of curious about this for a while, youtube has a few videos of ICBM tests which show the incoming warheads but they’ve all been slowed down or otherwise manipulated. Does anyone have a link to footage show… --- ## [Supersonic @60K feet: how loud @ground?](https://boards.straightdope.com/t/supersonic-60k-feet-how-loud-ground/759319)
**Author:** [@Machine\_Elf](https://boards.straightdope.com/u/Machine_Elf)\ **Replies:** 2\ **Last updated:** [July 7, 2016, 6:03pm UTC](https://boards.straightdope.com/t/supersonic-60k-feet-how-loud-ground/759319 "2016-07-07T18:03:17Z")
Inspired by this discussion of supersonic passenger transport. Flying supersonic at low altitudes tends to cause problems for nearby ground-dwellers. What about flying Mach 2 at 60K feet? How loud/destructive is the s… --- ## [Googling "World War 2 flying penis pendant" didn't work](https://boards.straightdope.com/t/googling-world-war-2-flying-penis-pendant-didnt-work/657583)
**Author:** [@simply\_cats](https://boards.straightdope.com/u/simply_cats)\ **Replies:** 29\ **Last updated:** [July 9, 2016, 1:25am UTC](https://boards.straightdope.com/t/googling-world-war-2-flying-penis-pendant-didnt-work/657583 "2016-07-09T01:25:20Z")
Now that I have gotten your attention- My mother gave me an old traveling case that contained items of my grandfather’s. Among the prizes were a letter written to my grandmother, several watches, various small pins whic… --- ## [Terry Stop (in the Minnesota Shooting)](https://boards.straightdope.com/t/terry-stop-in-the-minnesota-shooting/759403)
**Author:** [@Paul\_in\_Qatar](https://boards.straightdope.com/u/Paul_in_Qatar)\ **Replies:** 21\ **Last updated:** [July 9, 2016, 1:07am UTC](https://boards.straightdope.com/t/terry-stop-in-the-minnesota-shooting/759403 "2016-07-09T01:07:51Z")
So one thing led to another and a Minnesota policeman ended up shooting a guy and let him bleed out. The woman and the infant in the car were then detained, the mother was handcuffed and both taken to the police station… --- ## [Which nuclear targets have grounds bursts v. air burst?](https://boards.straightdope.com/t/which-nuclear-targets-have-grounds-bursts-v-air-burst/759312)
**Author:** [@Tzigone](https://boards.straightdope.com/u/Tzigone)\ **Replies:** 11\ **Last updated:** [July 9, 2016, 12:52am UTC](https://boards.straightdope.com/t/which-nuclear-targets-have-grounds-bursts-v-air-burst/759312 "2016-07-09T00:52:20Z")
Just saw some Fallout discussion, and while I don’t play, it led me to this thought. I’m aware of the differences in air burst and ground burst and the differing amounts fallout caused. As I understand it ground bursts… --- ## [Has there ever been a workers strike against red tape?](https://boards.straightdope.com/t/has-there-ever-been-a-workers-strike-against-red-tape/759336)
**Author:** [@Maastricht](https://boards.straightdope.com/u/Maastricht)\ **Replies:** 5\ **Last updated:** [July 8, 2016, 11:59pm UTC](https://boards.straightdope.com/t/has-there-ever-been-a-workers-strike-against-red-tape/759336 "2016-07-08T23:59:31Z")
Strikers want better job conditions. Usually with regard to pay or hours or rights. Nowadays, many jobs are plagued by too much administration. Workers can’t do their real work because they have to spend increasing am… --- ## [Legal Question: Can Closing Arguments Re-open Testimony?](https://boards.straightdope.com/t/legal-question-can-closing-arguments-re-open-testimony/759299)
**Author:** [@BeepKillBeep](https://boards.straightdope.com/u/BeepKillBeep)\ **Replies:** 7\ **Last updated:** [July 8, 2016, 11:12pm UTC](https://boards.straightdope.com/t/legal-question-can-closing-arguments-re-open-testimony/759299 "2016-07-08T23:12:27Z")
I was watching an episode of The Simpsons last night. In it, Lisa was Bart’s defense lawyer for a prank he didn’t commit. She proves he didn’t do it and then makes a closing remark. During the closing remark she says “… … --- ## [Who is the boss of the Director of the FBI?](https://boards.straightdope.com/t/who-is-the-boss-of-the-director-of-the-fbi/759245)
**Author:** [@Whack-a-Mole](https://boards.straightdope.com/u/Whack-a-Mole)\ **Replies:** 11\ **Last updated:** [July 8, 2016, 10:22pm UTC](https://boards.straightdope.com/t/who-is-the-boss-of-the-director-of-the-fbi/759245 "2016-07-08T22:22:36Z")
I have Googled this and it is weirdly difficult to find. For instance: 28 U.S. Code § 532 - Director of the Federal Bureau of Investigation says: “The Attorney General may appoint a Director of the Federal Bureau of I… --- ## ["More dogs are lost during July 4th weekend than any other time of the year"--CITE?](https://boards.straightdope.com/t/more-dogs-are-lost-during-july-4th-weekend-than-any-other-time-of-the-year-cite/759162)
**Author:** [@russian\_heel](https://boards.straightdope.com/u/russian_heel)\ **Replies:** 28\ **Last updated:** [July 8, 2016, 9:31pm UTC](https://boards.straightdope.com/t/more-dogs-are-lost-during-july-4th-weekend-than-any-other-time-of-the-year-cite/759162 "2016-07-08T21:31:07Z")
I brought this question up here: http://boards.straightdope.com/sdmb/showthread.php?t=797512 The logic is loud fireworks scares the pooches, who then escape and run away from home. Makes sense, except, my search so fa… --- ## [Why do high speed ferries go so slow](https://boards.straightdope.com/t/why-do-high-speed-ferries-go-so-slow/759425)
**Author:** [@StuckinNJ](https://boards.straightdope.com/u/StuckinNJ)\ **Replies:** 5\ **Last updated:** [July 8, 2016, 9:26pm UTC](https://boards.straightdope.com/t/why-do-high-speed-ferries-go-so-slow/759425 "2016-07-08T21:26:44Z")
This is rather specific, and I apologize upfront. But why does the SeaStreak ferry to NYC from Highlands/Atlantic Highlands go so slow. My best guess is it’s less than 20 miles and it takes roughly 55 minutes. This is … --- ## [Dogs with B Cell CLL](https://boards.straightdope.com/t/dogs-with-b-cell-cll/759371)
**Author:** [@Bellira](https://boards.straightdope.com/u/Bellira)\ **Replies:** 2\ **Last updated:** [July 8, 2016, 8:01pm UTC](https://boards.straightdope.com/t/dogs-with-b-cell-cll/759371 "2016-07-08T20:01:32Z")
Anyone with experience with this? I have so many questions that my oncologist can’t answer as it is so rare. Hoping to speak with someone who has been through this. Thank you in advance. Bell [Previous page](https://boards.straightdope.com/c/factual-questions/9.md?page=876) [Next page](https://boards.straightdope.com/c/factual-questions/9.md?page=878)