# Factual Questions **URL:** https://boards.straightdope.com/c/factual-questions/9.md?page=608 [Latest](https://boards.straightdope.com/latest.md) · [Categories](https://boards.straightdope.com/categories.md) · [Tags](https://boards.straightdope.com/tags.md) **Page:** 609 --- ## [Strength \_and\_ endurance training at the same time?](https://boards.straightdope.com/t/strength-_and_-endurance-training-at-the-same-time/810552)
**Author:** [@Frylock](https://boards.straightdope.com/u/Frylock)\ **Replies:** 7\ **Last updated:** [March 15, 2018, 12:18am UTC](https://boards.straightdope.com/t/strength-_and_-endurance-training-at-the-same-time/810552 "2018-03-15T00:18:24Z")
I read that if I want to do strength training, I need to use weights that allow for just 1-6 reps per set, and that if I want to do endurance training, I need to use weights that allow for about 15 reps per set. What if… --- ## [Is knowing a programming language useful if not used as a job?](https://boards.straightdope.com/t/is-knowing-a-programming-language-useful-if-not-used-as-a-job/810187)
**Author:** [@JakeRS](https://boards.straightdope.com/u/JakeRS)\ **Replies:** 69\ **Last updated:** [March 14, 2018, 11:34pm UTC](https://boards.straightdope.com/t/is-knowing-a-programming-language-useful-if-not-used-as-a-job/810187 "2018-03-14T23:34:16Z")
I like to learn random useful things to a basic or medium level, I know video editing, how to use Photoshop, I am learning 3d modeling, I even know how to make a (crappy) song in Fl studio, however one thing I never lear… --- ## [Awarness of humans zebra spiders](https://boards.straightdope.com/t/awarness-of-humans-zebra-spiders/754803)
**Author:** [@Asympotically\_fat](https://boards.straightdope.com/u/Asympotically_fat)\ **Replies:** 33\ **Last updated:** [March 14, 2018, 10:04pm UTC](https://boards.straightdope.com/t/awarness-of-humans-zebra-spiders/754803 "2018-03-14T22:04:33Z")
Why do zebra spiders show an awareness of being observed by humans, despite their small size? I’ve seen it before and it is both peculiar and remarkable. --- ## [When a Mentalist or Sherlock Holmes "read" someone](https://boards.straightdope.com/t/when-a-mentalist-or-sherlock-holmes-read-someone/713160)
**Author:** [@Robert163](https://boards.straightdope.com/u/Robert163)\ **Replies:** 137\ **Last updated:** [March 14, 2018, 8:52pm UTC](https://boards.straightdope.com/t/when-a-mentalist-or-sherlock-holmes-read-someone/713160 "2018-03-14T20:52:37Z")
When a mentalist or Sherlock Holmes “read” someone is that real or is it pure fiction ? In other words, can you look at a persons clothes, dialogue and body language and determine that they are a recently unemployed acco… --- ## ["Dockless" rental e-bikes - who charges them?](https://boards.straightdope.com/t/dockless-rental-e-bikes-who-charges-them/810551)
**Author:** [@CurtC](https://boards.straightdope.com/u/CurtC)\ **Replies:** 4\ **Last updated:** [March 14, 2018, 7:36pm UTC](https://boards.straightdope.com/t/dockless-rental-e-bikes-who-charges-them/810551 "2018-03-14T19:36:45Z")
I was in San Diego this weekend, and the numbers of “dockless” ride-share e-bikes and e-scooters was astounding. There were lots of LimeBike-e’s and LimeBike-s scooters, as well as scooters from Bird, and probably more. … --- ## [Where's all the dark matter?](https://boards.straightdope.com/t/wheres-all-the-dark-matter/810220)
**Author:** [@Mosier](https://boards.straightdope.com/u/Mosier)\ **Replies:** 30\ **Last updated:** [March 14, 2018, 3:46pm UTC](https://boards.straightdope.com/t/wheres-all-the-dark-matter/810220 "2018-03-14T15:46:20Z")
Dark matter only interacts with normal matter through gravity. I understand that part. I imagine globs of dark matter being pulled toward big sources of gravity, but almost never settling in a stable way in any particula… --- ## [Soda can tabs for charity](https://boards.straightdope.com/t/soda-can-tabs-for-charity/810514)
**Author:** [@boffking](https://boards.straightdope.com/u/boffking)\ **Replies:** 18\ **Last updated:** [March 14, 2018, 7:37am UTC](https://boards.straightdope.com/t/soda-can-tabs-for-charity/810514 "2018-03-14T07:37:37Z")
I know several people who collect the pull tabs from soda cans for various charities and I am wondering if it is really worth the effort. The tabs are just scrap aluminum, which is worth approximately $1.00 US /pound.… --- ## [What kind of tree is this?](https://boards.straightdope.com/t/what-kind-of-tree-is-this/810481)
**Author:** [@Dung\_Beetle](https://boards.straightdope.com/u/Dung_Beetle)\ **Replies:** 3\ **Last updated:** [March 14, 2018, 3:52am UTC](https://boards.straightdope.com/t/what-kind-of-tree-is-this/810481 "2018-03-14T03:52:27Z")
There’s this cool little fluffy white tree in my yard. Most of the time it just looks like a dead stick but it suddenly bloomed and I really like it! It’s almost all flowers. Can you identify it for me? I’d like to t… --- ## [Windows 10 Recycle Bin noise](https://boards.straightdope.com/t/windows-10-recycle-bin-noise/810292)
**Author:** [@buddha\_david](https://boards.straightdope.com/u/buddha_david)\ **Replies:** 4\ **Last updated:** [March 13, 2018, 4:09pm UTC](https://boards.straightdope.com/t/windows-10-recycle-bin-noise/810292 "2018-03-13T16:09:19Z")
Ever since installing Windows 10, my Recycle Bin no longer makes a noise when I empty it. How do I get that “ka-schwuff” sound back? --- ## [How to open a .gz file?](https://boards.straightdope.com/t/how-to-open-a-gz-file/810440)
**Author:** [@mixdenny](https://boards.straightdope.com/u/mixdenny)\ **Replies:** 7\ **Last updated:** [March 13, 2018, 2:58pm UTC](https://boards.straightdope.com/t/how-to-open-a-gz-file/810440 "2018-03-13T14:58:55Z")
I am trying to view a compressed .tif map from the US Geological Survey. It downloads as a large .gz file They say to use gZip from gzip.org. It is a self extracting file. When I unzip it I do get a gZip executable but i… --- ## [Is there ever any legal basis for issuing a injunction to support an NDA?](https://boards.straightdope.com/t/is-there-ever-any-legal-basis-for-issuing-a-injunction-to-support-an-nda/810409)
**Author:** [@griffin1977](https://boards.straightdope.com/u/griffin1977)\ **Replies:** 14\ **Last updated:** [March 13, 2018, 2:33pm UTC](https://boards.straightdope.com/t/is-there-ever-any-legal-basis-for-issuing-a-injunction-to-support-an-nda/810409 "2018-03-13T14:33:04Z")
Based on recent events in the Trump-vs-Stormy Daniels affair, but making a more general point. Is there ever any circumstances which a court would issue an injunction to prevent disclosure as a result of breaking an NDA… --- ## [What is he difference between a contagious and infectious?](https://boards.straightdope.com/t/what-is-he-difference-between-a-contagious-and-infectious/810472)
**Author:** [@Steven\_Estes](https://boards.straightdope.com/u/Steven_Estes)\ **Replies:** 5\ **Last updated:** [March 13, 2018, 1:18pm UTC](https://boards.straightdope.com/t/what-is-he-difference-between-a-contagious-and-infectious/810472 "2018-03-13T13:18:58Z")
What is he difference between a contagious and infectious? Dictionaries do not make this clear, but perhaps it is because there is overlap in the meanings. --- ## [space power plant feasibility](https://boards.straightdope.com/t/space-power-plant-feasibility/178147)
**Author:** [@InquisitiveIdiot](https://boards.straightdope.com/u/InquisitiveIdiot)\ **Replies:** 11\ **Last updated:** [March 13, 2018, 1:06pm UTC](https://boards.straightdope.com/t/space-power-plant-feasibility/178147 "2018-03-13T13:06:47Z")
A few of my friends got into a discussion a few nights ago about the feasibility of having a space based power plant fueled by the temerature difference between sunlight and dark in space. Put simply, it would be a fair… --- ## [Convert Audible.com book to mp3?](https://boards.straightdope.com/t/convert-audible-com-book-to-mp3/685138)
**Author:** [@ThelmaLou](https://boards.straightdope.com/u/ThelmaLou)\ **Replies:** 24\ **Last updated:** [April 2, 2014, 11:07pm UTC](https://boards.straightdope.com/t/convert-audible-com-book-to-mp3/685138 "2014-04-02T23:07:53Z")
I googled on this question and got a zillion answers and offers of software to perform this task. I’ve downloaded my book into iTunes, but the audible format is something called “aa” (possibly because it drives you to d… --- ## [How long for botulism spores to grow in anaerobic environment](https://boards.straightdope.com/t/how-long-for-botulism-spores-to-grow-in-anaerobic-environment/810395)
**Author:** [@Velocity](https://boards.straightdope.com/u/Velocity)\ **Replies:** 5\ **Last updated:** [March 12, 2018, 11:28pm UTC](https://boards.straightdope.com/t/how-long-for-botulism-spores-to-grow-in-anaerobic-environment/810395 "2018-03-12T23:28:50Z")
6 hours? 2 days? Etc. --- ## [Troubleshooting old stuff: MS-DOS won't recognize disk change in drive A](https://boards.straightdope.com/t/troubleshooting-old-stuff-ms-dos-wont-recognize-disk-change-in-drive-a/810298)
**Author:** [@CoastalMaineiac](https://boards.straightdope.com/u/CoastalMaineiac)\ **Replies:** 22\ **Last updated:** [March 12, 2018, 11:20pm UTC](https://boards.straightdope.com/t/troubleshooting-old-stuff-ms-dos-wont-recognize-disk-change-in-drive-a/810298 "2018-03-12T23:20:07Z")
Here’s a blast from the past in 2018: I’m having a weird problem with one of my old buzzard computer’s floppy disk drives. This computer has both a 3.5" and 5.25" floppy drive. The 5.25" floppy drive seems to be working… --- ## [What happened to the "democratic" institutions of the Roman republic during the emperium?](https://boards.straightdope.com/t/what-happened-to-the-democratic-institutions-of-the-roman-republic-during-the-emperium/809931)
**Author:** [@griffin1977](https://boards.straightdope.com/u/griffin1977)\ **Replies:** 12\ **Last updated:** [March 12, 2018, 10:54pm UTC](https://boards.straightdope.com/t/what-happened-to-the-democratic-institutions-of-the-roman-republic-during-the-emperium/809931 "2018-03-12T22:54:48Z")
Without getting into GD territory as to how, small “d”, democratic (or otherwise) the Roman republic really was. I think it safe to say there were some aspects of the roman republic that genuinely gave the population (at… --- ## [Wheeled (new? IDF Eitan) vs. tracked APCs (US M113, IDF Namer)](https://boards.straightdope.com/t/wheeled-new-idf-eitan-vs-tracked-apcs-us-m113-idf-namer/761476)
**Author:** [@Leo\_Bloom](https://boards.straightdope.com/u/Leo_Bloom)\ **Replies:** 14\ **Last updated:** [March 12, 2018, 10:50pm UTC](https://boards.straightdope.com/t/wheeled-new-idf-eitan-vs-tracked-apcs-us-m113-idf-namer/761476 "2018-03-12T22:50:32Z")
At one time not long ago the Namer (pronounced Nah-mare) was to replace the M113 in the IDF. Fun fact: Namer supposedly “the most heavily armored moving vehicle in history.” (Cite to come, maybe it’s here in its Wiki: N… --- ## [Keynote for iPad](https://boards.straightdope.com/t/keynote-for-ipad/810456)
**Author:** [@Cartooniverse](https://boards.straightdope.com/u/Cartooniverse)\ **Replies:** 0\ **Last updated:** [March 12, 2018, 10:18pm UTC](https://boards.straightdope.com/t/keynote-for-ipad/810456 "2018-03-12T22:18:16Z")
Going quietly nuts here. I’ve imported a Keynote presentation to my iPad. I have use of a Bluetooth keyboard for the iPad. I can open up Keynote ( the newest release ) and see the normal Keynote work space with slides,… --- ## [What effect would a small wormhole in Earth's atmosphere have?](https://boards.straightdope.com/t/what-effect-would-a-small-wormhole-in-earths-atmosphere-have/810452)
**Author:** [@Atomic\_Alex](https://boards.straightdope.com/u/Atomic_Alex)\ **Replies:** 4\ **Last updated:** [March 12, 2018, 10:17pm UTC](https://boards.straightdope.com/t/what-effect-would-a-small-wormhole-in-earths-atmosphere-have/810452 "2018-03-12T22:17:33Z")
I recently finished reading ‘The Permanent Implosion’ by Dean McLaughlin, the premise of the story is that a scientific accident in the continental US has created a small wormhole (its described as looking like a sphere … --- ## [Air to air combat kills with guns: still happens?](https://boards.straightdope.com/t/air-to-air-combat-kills-with-guns-still-happens/810404)
**Author:** [@Leo\_Bloom](https://boards.straightdope.com/u/Leo_Bloom)\ **Replies:** 14\ **Last updated:** [March 12, 2018, 9:26pm UTC](https://boards.straightdope.com/t/air-to-air-combat-kills-with-guns-still-happens/810404 "2018-03-12T21:26:43Z")
Surfing Wiki, on the Python air-to-air missile, it mentions the poor performance of Israel’s first such missile, the Shafrir, in the Six-Day War, and that every single enemy splash was by guns. Are gun battles in the ai… --- ## [Background apps and battery usage](https://boards.straightdope.com/t/background-apps-and-battery-usage/810334)
**Author:** [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Replies:** 16\ **Last updated:** [March 12, 2018, 8:53pm UTC](https://boards.straightdope.com/t/background-apps-and-battery-usage/810334 "2018-03-12T20:53:58Z")
Yes, this is based on yesterday’s XKCD, but it’s about the fact, not the comic itself. A character in the strip says that closing background apps when not in use drains the battery faster, not slower. Now, I trust that… --- ## [How to find a folder you've 'misplaced'](https://boards.straightdope.com/t/how-to-find-a-folder-youve-misplaced/810356)
**Author:** [@StarvingButStrong](https://boards.straightdope.com/u/StarvingButStrong)\ **Replies:** 41\ **Last updated:** [March 12, 2018, 8:31pm UTC](https://boards.straightdope.com/t/how-to-find-a-folder-youve-misplaced/810356 "2018-03-12T20:31:42Z")
TLDR version: what is a good program that will find ‘missing’ files/folders for me? As in, I can give the program the name/partial name of a file or folder, and assuming it still exists on my hard drive, the program wil… --- ## [pull the other one, it's got bells on - Origins?](https://boards.straightdope.com/t/pull-the-other-one-its-got-bells-on-origins/374729)
**Author:** [@Tabby\_Cat](https://boards.straightdope.com/u/Tabby_Cat)\ **Replies:** 13\ **Last updated:** [March 12, 2018, 7:58pm UTC](https://boards.straightdope.com/t/pull-the-other-one-its-got-bells-on-origins/374729 "2018-03-12T19:58:53Z")
I’ve been looking for the origins of this phrase. Orginally, I thought it was a Terry Pratchett invention (it sounds far to Ankh-Morporkian), but upon googling I find it’s rather much more widespread than that, and appea… --- ## [How long should it take to clone a hard drive?](https://boards.straightdope.com/t/how-long-should-it-take-to-clone-a-hard-drive/810387)
**Author:** [@Omega\_Glory](https://boards.straightdope.com/u/Omega_Glory)\ **Replies:** 10\ **Last updated:** [March 12, 2018, 7:42pm UTC](https://boards.straightdope.com/t/how-long-should-it-take-to-clone-a-hard-drive/810387 "2018-03-12T19:42:09Z")
I’m trying to clone a 1 TB drive to a 250 GB hard drive. The source drive only has 52 GB being used. The new drive has partitions, but no data. The easeUS software has been running for an hour, and the estimated time rem… --- ## [Bald-/bold-faced lies](https://boards.straightdope.com/t/bald-bold-faced-lies/810360)
**Author:** [@Johnny\_L.A](https://boards.straightdope.com/u/Johnny_L.A)\ **Replies:** 12\ **Last updated:** [March 12, 2018, 5:03pm UTC](https://boards.straightdope.com/t/bald-bold-faced-lies/810360 "2018-03-12T17:03:16Z")
I grew up with ‘bald-faced lie’ being the term for a lie that’s plain. I think it evolved from ‘bare-faced lie’, which, like ‘bald-faced’ implies ‘uncovered’ or ‘plainly visible’. OTOH, ‘bold-faced’ implies blatancy. … --- ## [I want to learn about distant relatives who were WWII vets.](https://boards.straightdope.com/t/i-want-to-learn-about-distant-relatives-who-were-wwii-vets/810371)
**Author:** [@Sitnam](https://boards.straightdope.com/u/Sitnam)\ **Replies:** 11\ **Last updated:** [March 12, 2018, 4:37pm UTC](https://boards.straightdope.com/t/i-want-to-learn-about-distant-relatives-who-were-wwii-vets/810371 "2018-03-12T16:37:56Z")
I’ve asked for military record advice for another topic on this board before and you guys delivered in style, I was hoping I’d have the same luck again. Two great uncles where in Normandy just after D-Day, I’d like to l… --- ## [How to turn OFF Excel auto correct for dates?](https://boards.straightdope.com/t/how-to-turn-off-excel-auto-correct-for-dates/710399)
**Author:** [@davida03801](https://boards.straightdope.com/u/davida03801)\ **Replies:** 24\ **Last updated:** [March 12, 2018, 8:45am UTC](https://boards.straightdope.com/t/how-to-turn-off-excel-auto-correct-for-dates/710399 "2018-03-12T08:45:20Z")
How do I turn OFF the auto correct feature in MS Excel for calendar entries ? I have a lot of entries like 10-15 in Excel that gets changes automatically to 15-OCT. Even after I make the fields all text it is still doi… --- ## [Help identify this chemical symbol](https://boards.straightdope.com/t/help-identify-this-chemical-symbol/810410)
**Author:** [@Lucas\_Jackson](https://boards.straightdope.com/u/Lucas_Jackson)\ **Replies:** 3\ **Last updated:** [March 12, 2018, 5:39am UTC](https://boards.straightdope.com/t/help-identify-this-chemical-symbol/810410 "2018-03-12T05:39:22Z")
Hopefully this will be an easy ask. I googled around a bit but couldn’t run it down. --- ## [Hitler's public statements regarding Jews](https://boards.straightdope.com/t/hitlers-public-statements-regarding-jews/810180)
**Author:** [@Blalron](https://boards.straightdope.com/u/Blalron)\ **Replies:** 19\ **Last updated:** [March 12, 2018, 1:23am UTC](https://boards.straightdope.com/t/hitlers-public-statements-regarding-jews/810180 "2018-03-12T01:23:41Z")
What policies did Hitler publicly advocate for with regard to Jews, both before and after obtaining political power? What glimpses, if any, of a genocidal impulse would Jews in the Weimar Republic have been able to dete… [Previous page](https://boards.straightdope.com/c/factual-questions/9.md?page=607) [Next page](https://boards.straightdope.com/c/factual-questions/9.md?page=609)