next message in archive
no next message in thread
previous message in archive
previous message in thread
Index of Subjects
<div>On Apr 28, 2020, at 8:43 AM, David Webster &a --_000_F210E1ECCD7B43AEACA52D03D274245Cdalca_ Content-Type: text/plain; charset="Windows-1252" 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 --_000_F210E1ECCD7B43AEACA52D03D274245Cdalca_ Content-Type: text/html; charset="Windows-1252" Content-ID: <FD058705D171024A8B211B5F73CC9DA7@CANPRD01.PROD.OUTLOOK.COM> Content-Transfer-Encoding: quoted-printable <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.= But what winged or jumping insects are about in January other than t= iny and 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 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? It would then have a minute or so to fly around before it cooled= down rapidly to ambient temperature and became immobilized. <br> <br> <div> <div>On Apr 28, 2020, at 2:19 PM, K MacLeod <<a href=3D"mailto:ktmac13@g= mail.com">ktmac13@gmail.com</a>> 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> </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)= ;"> 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 </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 "rod" with bulges along its length. The blurred body of the ins= ect as it moves forward forms the "rod," 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 <<a href=3D"mailto:Andrew.Stadnyk@dal.ca">Andrew.Stadnyk@dal.c= a</a>> 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> <<a href=3D"mailto:naturens-owner@chebucto.ns.= ca" target=3D"_blank">naturens-owner@chebucto.ns.ca</a>> on behalf of St= ephen Shaw <srshaw@Dal.Ca><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> <<a href=3D"mailto:naturens@chebucto.ns.ca" tar= get=3D"_blank">naturens@chebucto.ns.ca</a>><br> <b>Subject:</b> Re: [NatureNS] Re: peculiar arthropod capture</font> <div> </div> </div> </div> </div> <div dir=3D"ltr"> <div> <div style=3D"word-wrap:break-word">Agreed. 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. 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. Second guess i= s that it=92s a miniature UFO. <div><br> <div> <div>On Apr 28, 2020, at 8:43 AM, David Webster <<a href=3D"mailto:dwebs= ter@glinx.com" target=3D"_blank">dwebster@glinx.com</a>> 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> --_000_F210E1ECCD7B43AEACA52D03D274245Cdalca_--
next message in archive
no next message in thread
previous message in archive
previous message in thread
Index of Subjects