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Neato, I'll contact him. Ask if he will take a peek.
Andy
________________________________
From: naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca> on beha=
lf of K MacLeod <ktmac13@gmail.com>
Sent: April 28, 2020 3:19 PM
To: naturens@chebucto.ns.ca <naturens@chebucto.ns.ca>
Subject: Re: [NatureNS] Re: peculiar arthropod capture
CAUTION: The Sender of this email is not from within Dalhousie.
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>
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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Neato, I'll contact him. Ask if he will take a peek.</div>
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Andy</div>
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lor=3D"#000000" style=3D"font-size:11pt"><b>From:</b> naturens-owner@chebuc=
to.ns.ca <naturens-owner@chebucto.ns.ca> on behalf of K MacLeod <k=
tmac13@gmail.com><br>
<b>Sent:</b> April 28, 2020 3:19 PM<br>
<b>To:</b> naturens@chebucto.ns.ca <naturens@chebucto.ns.ca><br>
<b>Subject:</b> Re: [NatureNS] Re: peculiar arthropod capture</font>
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