[NatureNS] peculiar arthropod capture

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Thread-Topic: [NatureNS] peculiar arthropod capture
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&lt;div&gt;On Apr 28, 2020, at 8:43 AM, David Webster &a
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Content-Transfer-Encoding: quoted-printable

While a UFO sighting might be nicer, this sounds a more likely explanation.=
  But what winged or jumping insects are about in January other than tiny a=
nd rare "snow fleas=94?  An alien male winter moth if still around by then =
doesn=92t fly rapidly like that.  Two ideas: was it a recording (data loggi=
ng) camera that could have captured this way back in mid-summer but the mem=
ory of which was only downloaded months later?=97 do its images have date/t=
ime signatures? Or could it have been an overwintering moth that emerged fr=
om its chrysalis prematurely from soil in a planter in the heated indoors (=
sometimes happens, noctuid moths), and that someone had just booted outside=
?  It would then have a minute or so to fly around before it cooled down ra=
pidly to ambient temperature and became immobilized.

On Apr 28, 2020, at 2:19 PM, K MacLeod <ktmac13@gmail.com<mailto:ktmac13@gm=
ail.com>> wrote:

http://www.skepdic.com/rods.html

It is an optical illusion according to this website:

 But, according to Doug Yanega of the Entomology Department at the Universi=
ty of California at Riverside and a member of the Straight Dope Science Adv=
isory Board, rods are

a videographic artifact based on the frame capture rate of the videocam ver=
sus the wingbeat frequency of the insects. Essentially what you see is seve=
ral wingbeat cycles of the insect on each frame of the video, creating the =
illusion of a "rod" with bulges along its length. The blurred body of the i=
nsect as it moves forward forms the "rod," and the oscillation of the wings=
 up and down form the bulges. Anyone with a video camera can duplicate the =
effect, if you shoot enough footage of flying insects from the right distan=
ce.*<http://www.straightdope.com/mailbag/mrodhoax.html>

On Tue, Apr 28, 2020 at 3:12 PM Andrew Stadnyk <Andrew.Stadnyk@dal.ca<mailt=
o:Andrew.Stadnyk@dal.ca>> wrote:
Certainly not a video scam from me, right-off the trail cam. There is shape=
 to it, just pause the video and catch it at near the apex. In terms of my =
video editing capabilities, heck it took me weeks to figure out how to get =
it on Twitter (cost free, that is, I was sharing 92Mb through Google before=
). That's why it was so striking. So UFO it is until we know more but I hav=
en't seen a repeat.

Andy Stadnyk

________________________________
From: naturens-owner@chebucto.ns.ca<mailto:naturens-owner@chebucto.ns.ca> <=
naturens-owner@chebucto.ns.ca<mailto:naturens-owner@chebucto.ns.ca>> on beh=
alf of Stephen Shaw <srshaw@Dal.Ca<mailto:srshaw@Dal.Ca>>
Sent: April 28, 2020 2:54 PM
To: naturens@chebucto.ns.ca<mailto:naturens@chebucto.ns.ca> <naturens@chebu=
cto.ns.ca<mailto:naturens@chebucto.ns.ca>>
Subject: Re: [NatureNS] Re: peculiar arthropod capture

Agreed.  But it=92s not the obvious LED pointer trail that cats love, thoug=
h: that wouldn=92t leave a trace in plain air and doesn=92t leave one on th=
e ground in the video.  At two points the bouncing image changes direction =
very rapidly in an un-animal-like manner, so it does appear to be human-mad=
e.  First guess is that somebody with video skills has superimposed another=
 image on top of the cat pic, and that it=92s a scam.  Second guess is that=
 it=92s a miniature UFO.

On Apr 28, 2020, at 8:43 AM, David Webster <dwebster@glinx.com<mailto:dwebs=
ter@glinx.com>> wrote:

Dear Andrew and All,
I had a look at this. That must be some rotating light source nearby or som=
e kid having fun. Not a leaping arthropod.
yt, DW, Kentville.
On 4/28/2020 8:16 AM, Andrew Stadnyk wrote:
Indirectly related to the cats in our yard, in January I happened to captur=
e video of a very peculiar arthropod (jumping Centipede?) bouncing in the d=
ark in front of a stray cat, from our deck. The cat notices it but likely c=
an't see it. I am very interested in more information about the arthropod. =
Fascinating that it is bouncing and in January. Any ideas are appreciated.

The video is available on Twitter, using the link. You don't have to be sub=
scriber to Twitter to see it.

https://twitter.com/I_stop_forbirds/status/1254015664790147072

Andy Stadnyk
Lower Sackville






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Content-ID: <FD058705D171024A8B211B5F73CC9DA7@CANPRD01.PROD.OUTLOOK.COM>
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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DWindows-1=
252">
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space;">
While a UFO sighting might be nicer, this sounds a more likely explanation.=
 &nbsp;But what winged or jumping insects are about in January other than t=
iny and rare &quot;snow fleas=94? &nbsp;An alien male winter moth if still =
around by then doesn=92t fly rapidly like that. &nbsp;Two
 ideas: was it a recording (data logging) camera that could have captured t=
his way back in mid-summer but the memory of which was only downloaded mont=
hs later?=97 do its images have date/time signatures? Or could it have been=
 an overwintering moth that emerged
 from its chrysalis prematurely from soil in a planter in the heated indoor=
s (sometimes happens, noctuid moths), and that someone had just booted outs=
ide? &nbsp;It would then have a minute or so to fly around before it cooled=
 down rapidly to ambient temperature
 and became immobilized. &nbsp; &nbsp;<br>
<br>
<div>
<div>On Apr 28, 2020, at 2:19 PM, K MacLeod &lt;<a href=3D"mailto:ktmac13@g=
mail.com">ktmac13@gmail.com</a>&gt; wrote:</div>
<br class=3D"Apple-interchange-newline">
<blockquote type=3D"cite">
<div><!-- START CAUTION Box Code --><!-- END CAUTION Box Code -->
<div>
<div>
<div><a href=3D"http://www.skepdic.com/rods.html">http://www.skepdic.com/ro=
ds.html</a>&nbsp;</div>
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">It is an optical illusion according to this website:</div=
>
</div>
</div>
</div>
</blockquote>
<br>
<blockquote type=3D"cite">
<div>
<div>
<div>
<div dir=3D"auto"><span style=3D"font-family: Arial; color: rgb(51, 51, 51)=
;">&nbsp;But, according to Doug Yanega of the Entomology Department at the =
University of California at Riverside and a member of the Straight Dope Sci=
ence Advisory Board, rods are&nbsp;</span></div>
<div dir=3D"auto">
<blockquote style=3D"margin:0px auto;padding:0px 0px 0px 10px;font-family:A=
rial,Helvetica,sans-serif;width:376px;color:rgb(51,51,51)">
<p style=3D"margin:20px 0px;padding:0px"><font face=3D"Arial" size=3D"3" st=
yle=3D"margin:0px;padding:0px">a videographic artifact based on the frame c=
apture rate of the videocam versus the wingbeat frequency of the insects. E=
ssentially what you see is several wingbeat
 cycles of the insect on each frame of the video, creating the illusion of =
a &quot;rod&quot; with bulges along its length. The blurred body of the ins=
ect as it moves forward forms the &quot;rod,&quot; and the oscillation of t=
he wings up and down form the bulges. Anyone with a
 video camera can duplicate the effect, if you shoot enough footage of flyi=
ng insects from the right distance.<font color=3D"#990000" style=3D"margin:=
0px;padding:0px"><a href=3D"http://www.straightdope.com/mailbag/mrodhoax.ht=
ml" style=3D"margin:0px;padding:0px;color:rgb(51,153,204);text-decoration:n=
one">*</a></font></font></p>
</blockquote>
</div>
</div>
<div>
<div class=3D"gmail_quote">
<div dir=3D"ltr" class=3D"gmail_attr">On Tue, Apr 28, 2020 at 3:12 PM Andre=
w Stadnyk &lt;<a href=3D"mailto:Andrew.Stadnyk@dal.ca">Andrew.Stadnyk@dal.c=
a</a>&gt; wrote:<br>
</div>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div dir=3D"ltr">
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt;">
Certainly not a video scam from me, right-off the trail cam. There is shape=
 to it, just pause the video and catch it at near the apex. In terms of my =
video editing capabilities, heck it took me weeks to figure out how to get =
it on Twitter (cost free, that is,
 I was sharing 92Mb through Google before). That's why it was so striking. =
So UFO it is until we know more but I haven't seen a repeat.</div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt;">
<br>
</div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt;">
Andy Stadnyk</div>
<div>
<div id=3D"m_24827562168620032appendonsend"></div>
<div style=3D"font-family: Calibri, Arial, Helvetica, sans-serif; font-size=
: 12pt;">
<br>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_24827562168620032divRplyFwdMsg" dir=3D"ltr"><font face=3D"Cali=
bri, sans-serif" style=3D"font-size:11pt"><b>From:</b>
<a href=3D"mailto:naturens-owner@chebucto.ns.ca" target=3D"_blank">naturens=
-owner@chebucto.ns.ca</a> &lt;<a href=3D"mailto:naturens-owner@chebucto.ns.=
ca" target=3D"_blank">naturens-owner@chebucto.ns.ca</a>&gt; on behalf of St=
ephen Shaw &lt;srshaw@Dal.Ca&gt;<br>
<b>Sent:</b> April 28, 2020 2:54 PM<br>
<b>To:</b> <a href=3D"mailto:naturens@chebucto.ns.ca" target=3D"_blank">nat=
urens@chebucto.ns.ca</a> &lt;<a href=3D"mailto:naturens@chebucto.ns.ca" tar=
get=3D"_blank">naturens@chebucto.ns.ca</a>&gt;<br>
<b>Subject:</b> Re: [NatureNS] Re: peculiar arthropod capture</font>
<div>&nbsp;</div>
</div>
</div>
</div>
<div dir=3D"ltr">
<div>
<div style=3D"word-wrap:break-word">Agreed.&nbsp; But it=92s not the obviou=
s LED pointer trail that cats love, though: that wouldn=92t leave a trace i=
n plain air and doesn=92t leave one on the ground in the video.&nbsp; At tw=
o points the bouncing image changes direction very
 rapidly in an un-animal-like manner, so it does appear to be human-made.&n=
bsp; First guess is that somebody with video skills has superimposed anothe=
r image on top of the cat pic, and that it=92s a scam.&nbsp; Second guess i=
s that it=92s a miniature UFO. &nbsp;
<div><br>
<div>
<div>On Apr 28, 2020, at 8:43 AM, David Webster &lt;<a href=3D"mailto:dwebs=
ter@glinx.com" target=3D"_blank">dwebster@glinx.com</a>&gt; wrote:</div>
<br>
<blockquote type=3D"cite">
<div>
<div>
<div style=3D"margin-top: 0px; margin-bottom: 0px;">Dear Andrew and All,<br=
>
</div>
<div style=3D"margin-top: 0px; margin-bottom: 0px;">I had a look at this. T=
hat must be some rotating light source nearby or some kid having fun. Not a=
 leaping arthropod.</div>
<div style=3D"margin-top: 0px; margin-bottom: 0px;">yt, DW, Kentville.<br>
</div>
<div>On 4/28/2020 8:16 AM, Andrew Stadnyk wrote:<br>
</div>
<blockquote type=3D"cite">
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
">Indirectly related to the cats in our yard, in January I happened to capt=
ure video of a very peculiar arthropod (jumping Centipede?) bouncing in the=
 dark in front of a stray cat, from
 our deck. The cat notices it but likely can't see it. I am very interested=
 in more information about the arthropod. Fascinating that it is bouncing a=
nd in January. Any ideas are appreciated.</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
"><br>
</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
">The video is available on Twitter, using the link. You don't have to be s=
ubscriber to Twitter to see it.</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
"><br>
</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
"><a href=3D"https://twitter.com/I_stop_forbirds/status/1254015664790147072=
" target=3D"_blank">https://twitter.com/I_stop_forbirds/status/125401566479=
0147072</a><br>
</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
"><br>
</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
">Andy Stadnyk</div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
">Lower Sackville</div>
<div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt=
"><br>
</div>
<div><font size=3D"2"><span style=3D"font-size:11pt">
<div><br>
<br>
</div>
</span></font></div>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</body>
</html>

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