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Re:Why flying insects gather at artificial light by Balgair on Wednesday January 31, 2024 @12:41AM (#39200391)
One fun thing to do with a swarm of bug near a light is to take out your keys and shake them.

Keys will often ring in the ultrasonic and poorly mimic the frequencies that a lot of bats use.

If you have a population of bats that hunt near you, the bugs will typically just drop. Like, just drop to the ground as fast as they can.

They know the sound of hunting bats and your keys may be just close enough to that sound that they think they're being hunted. So they do the best that they can to get out of the way and go with gravity. At least, that's my theory.

Fun little thing to do as a bet or with the kiddos.

Re:Why flying insects gather at artificial light by m463 on Wednesday January 31, 2024 @03:20AM (#39201360)
some moths have countermeasures

John said, “Listen, you can hear the jammer.” The what? “The jammer,” he said, “Watch the moths.” It turns out the moths, through evolution, had developed their own electronic countermeasures to jam the bat radar.

https://steveblank.com/2009/03/23/if-i-told-you-i%e2%80%99d-...

Re:Why flying insects gather at artificial light by lfaw on Wednesday January 31, 2024 @05:38AM (#39202200)
fascinating! There's also a wikipedia entry: https://en.wikipedia.org/wiki/Echolocation_jamming?useskin=v...
Re:Why flying insects gather at artificial light by trklausss on Wednesday January 31, 2024 @12:53AM (#39200457)
Well you have no sources and you can be full of it. But following the scientific method, I’ll try your hypothesis next chance I have! :D
Re:Why flying insects gather at artificial light by guappa on Wednesday January 31, 2024 @01:46AM (#39200778)
Too bad it's winter and I'll probably forget this before I have a chance to!
Re:Why flying insects gather at artificial light by JR1427 on Wednesday January 31, 2024 @06:53AM (#39202710)
If this turns out to not be true, and just said for the amusement of thinking of all the people jiggling their keys at insects, it reminds me of something a friend in high-school said to me:

"If you peel a banana, take a bite off the top, and then poke your index finger in to the middle of it, it will split in to perfect thirds".

Upon trying this, I discovered it was not true, and my friend just wanted to see me stick my finger in a banana...

Re:Why flying insects gather at artificial light by JR1427 on Wednesday January 31, 2024 @08:21AM (#39203424)
Ha, no way!

All this time I thought this was him being silly!

(For the record, the banana did NOT split nicely)

Re:Why flying insects gather at artificial light by ithkuil on Wednesday January 31, 2024 @07:16AM (#39202871)
I never tried (yet) but a quick search reveals a lot of people filming the "banana split in thirds" action, e.g. https://youtu.be/NoGXTXsamt4?si=ANNTdtcu1trOdQXP

It's still technically possible it's a hoax but, boy, that's a lot of effort to provide fake content to support the hoax.

Re:Why flying insects gather at artificial light by OJFord on Wednesday January 31, 2024 @08:37AM (#39203609)
?t=40s

Nice. Maybe GP got the wrong end, or it is a test of ripeness, or perhaps 'bite off the end' ruined it (it at least didn't seem to be necessary in the linked video).

Re:Why flying insects gather at artificial light by ProllyInfamous on Wednesday January 31, 2024 @07:32AM (#39202981)
A banana does actually third itself when split.

I'm still going to shake my keys at the next swarm I passby.

Re:Why flying insects gather at artificial light by ginsider_oaks on Wednesday January 31, 2024 @07:21AM (#39202908)
funnily my friend just discovered that you can split it into thirds a few day ago and now does it whenever he eats a banana
Re:Why flying insects gather at artificial light by JackFr on Wednesday January 31, 2024 @09:49AM (#39204426)
"If you hand is larger than your face . . . "
Re:Why flying insects gather at artificial light by johndunne on Wednesday January 31, 2024 @10:03AM (#39204617)
Actually, I do this when making a banana split. Cut a piece off the top and then slowly press the banana into thirds. Then, lower the banana, with the bottom part of the banana still intact, into a tall glass. Smoother with cream, ice cream and/or syrup. Makes for a solid banana split.
Re:Why flying insects gather at artificial light by vlz on Wednesday January 31, 2024 @05:53AM (#39202298)
Interesting, I heard a story once that you can catch bats with keys: Put a bunch of keys in a sock and throw that in the air. If there is a bat near enough it might dive for and grab the object, then it gets drawn to the ground because the keys are too heavy. There you can catch it if you are quick.

Might be an urban myth, though it seems like it might just work.

Re:Why flying insects gather at artificial light by xtiansimon on Wednesday January 31, 2024 @08:08AM (#39203290)
Camping in Lassen area of Northern California as a kid, I would tease the bats by throwing a ball of tinfoil in the air. The bats would chase it.
Re:Why flying insects gather at artificial light by hk__2 on Wednesday January 31, 2024 @07:45AM (#39203088)
Note that depending on your area this might be illegal. In France for example, bats are a protected species and it’s forbidden to kill or capture them.
Re:Why flying insects gather at artificial light by TeMPOraL on Wednesday January 31, 2024 @09:15AM (#39204010)
Also depending on your area, there's a chance the bat may scratch you without you realizing it, and a few months or years later, you suddenly go mad and die in agony.

At least I'm more scared of rabies than any government fine. By the time you know something is wrong, you're already a corpse that's about to remember to stop moving.

Re:Why flying insects gather at artificial light by crossroadsguy on Wednesday January 31, 2024 @11:55AM (#39206070)
Rabies can lay that dormant? And there’s no test?
Re:Why flying insects gather at artificial light by js2 on Wednesday January 31, 2024 @12:40PM (#39206812)
Apparently, yes, and while there are tests, it's probably too late once symptoms have appeared:

> Rabies virus travels through the nerves to the spinal cord and brain. This process can last approximately 3 to 12 weeks. The animal has no signs of illness during this time.[^1]

> Several tests are necessary to diagnose rabies ante-mortem (before death) in humans; no single test is sufficient. Tests are performed on samples of saliva, serum, spinal fluid, and skin biopsies of hair follicles at the nape of the neck.[^2]

> Once clinical signs of rabies appear, the disease is nearly always fatal, and treatment is typically supportive. Less than 20 cases of human survival from clinical rabies have been documented.[^3]

[^1]: https://www.cdc.gov/rabies/transmission/body.html

[^2]: https://www.cdc.gov/rabies/diagnosis/animals-humans.html

[^3]: https://www.cdc.gov/rabies/symptoms/index.html

Re:Why flying insects gather at artificial light by TeMPOraL on Wednesday January 31, 2024 @03:25PM (#39208895)
I've read somewhere about the case that took over a year, but can't find the link. Following citations on[0], this paper[1] says:

"The incubation period is typically 1–3 months, but can vary from a few days to more than 1 year [1,4]. Cases of up to 6 years incubation period have been discussed[5]."

And this is specifically in humans, not in animals in general.

There is no test that I know of, but vaccine is very effective even after you got it (but before actual symptoms show up), so if you suspect you're infected, you go and get the shots. Thing is, AFAIK those are quite painful, so it's not something you want to take as prophylaptic unless you're at high risk (e.g. working as a vet).

All this adds up to what I wrote earlier: you get random bat or squirrel bite, tiny enough that you forget about it in moments, and a few months later, you suddenly die.

--

[0] - https://en.wikipedia.org/wiki/Rabies

[1] - https://www.tandfonline.com/doi/full/10.1586/14760584.2015.1...

Re:Why flying insects gather at artificial light by doubleg72 on Wednesday January 31, 2024 @11:22PM (#39212685)
I got bit by a bat recently and the four rounds of shots weren’t painful. Uncomfortable, maybe so.
Re:Why flying insects gather at artificial light by carlosjobim on Wednesday January 31, 2024 @11:16AM (#39205543)
Who in the world would know anything about it if you're out at night catching bats with a sock?
Re:Why flying insects gather at artificial light by hk__2 on Wednesday January 31, 2024 @12:33PM (#39206696)
If you know that it’s a protected species you might want not to do that, even if there’s no one to see you.
Re:Why flying insects gather at artificial light by carlosjobim on Wednesday January 31, 2024 @02:27PM (#39208156)
I'll assume that somebody out catching bats at night have their reasons.
Re:Why flying insects gather at artificial light by archerx on Wednesday January 31, 2024 @07:51AM (#39203141)
Seems like a great way to get rabies.
Re:Why flying insects gather at artificial light by Detrytus on Wednesday January 31, 2024 @09:28AM (#39204175)
Or a new strain of COVID...
Re:Why flying insects gather at artificial light by swayvil on Wednesday January 31, 2024 @10:14AM (#39204751)
or superpowers
Re:Why flying insects gather at artificial light by Detrytus on Wednesday January 31, 2024 @10:34AM (#39205019)
Wrong, Batman had no superpowers. He was just good at martial arts, and had access to some nice equipment (because he was a billionaire).
Re:Why flying insects gather at artificial light by shmeeed on Wednesday January 31, 2024 @10:41AM (#39205101)
So the costume was basically just a kink?
Re:Why flying insects gather at artificial light by dhosek on Wednesday January 31, 2024 @12:32PM (#39206694)
Yep. There was one early Batman series which revealed that his father had once dressed as a bat-man for a costume party. Batman wore the costume when apprehending a criminal who had done something awful to Batdad and the criminal, seeing the costume thought it was Batdad returned to life and panicked falling to his death.¹

⸻

1. Likely inaccurate description of the plot based on 45-year-old memories of reading the story in a library collection.

Re:Why flying insects gather at artificial light by SOVIETIC-BOSS88 on Wednesday January 31, 2024 @12:26PM (#39206578)
The underwear worn outside of the pants are a dead giveaway.
Re:Why flying insects gather at artificial light by rev-engineer22 on Wednesday January 31, 2024 @10:51AM (#39205227)
He had superhuman thirst for justice
Re:Why flying insects gather at artificial light by swayvil on Wednesday January 31, 2024 @12:41PM (#39206825)
Justice playing a metaphor for little flying insects in this case, upon which Batman places his hyperfocus. It makes sense.
Re:Why flying insects gather at artificial light by kermatt on Wednesday January 31, 2024 @02:16PM (#39208040)
Batman’s super power was his bank account(s)
Re:Why flying insects gather at artificial light by ersiees on Wednesday January 31, 2024 @07:40AM (#39203042)
more of a rural myth, I guess ;D
Re:Why flying insects gather at artificial light by mihaaly on Wednesday January 31, 2024 @06:05AM (#39202376)
I need to buy an ultrasonic whistle and experiment with this! :)
Re:Why flying insects gather at artificial light by cubefox on Wednesday January 31, 2024 @06:09AM (#39202405)
Apparently bees also drop when you turn the light off:

https://youtube.com/watch?v=OmG0OT6MWC8

Re:Why flying insects gather at artificial light by gwern on Wednesday January 31, 2024 @10:43AM (#39205127)
Have you ever done that?
Re:Why flying insects gather at artificial light by fennecfoxy on Wednesday January 31, 2024 @11:45AM (#39205941)