Stephen Sekula on chirp.cooleysekula.net
This remote profile is registered on another site; see steve's original profile page on chirp.cooleysekula.net.
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Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:24:19 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @mesa_bernardo: Hola Hola! I'm Bernardo. A physiologist studying how the inner body of animals react to environmental changes⦠https://twitter.com/i/web/status/827552206412988416 https://chirp.cooleysekula.net/attachment/21711 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:23:59 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @bevpaterson: I'm an epidemiologist improving surveillance of infectious diseases I #DressLikeAWoman and am an⦠https://twitter.com/i/web/status/827884695769718784 https://chirp.cooleysekula.net/attachment/21708 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:23:16 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @LeanneStaddon: I'm Leanne, an #actuallivingscientist. I study the chemistry of the early Earth from individual minerals from Austr⦠https://twitter.com/i/web/status/828040308835360769 https://chirp.cooleysekula.net/attachment/21705 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:22:46 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @untamedtigress1: I'm an #actuallivingscientist who, also, serves her country #DressLikeAWoman https://twitter.com/untamedtigress1/status/827689585664630784/photo/1 https://chirp.cooleysekula.net/attachment/21702 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:22:31 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @13adh13: I'm an #ActualLivingScientist working towards my PhD in biochemistry so I can study the effects of space travel on⦠https://twitter.com/i/web/status/827629121719123968 https://chirp.cooleysekula.net/attachment/21699 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:22:21 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @LoriKFenton: I am an #actuallivingscientist who studies how the wind shapes the surface on #Mars. Here I'm doing fieldwork on du⦠https://twitter.com/i/web/status/828033147778371584 https://chirp.cooleysekula.net/attachment/21696 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:22:07 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @HomaKrp: Hi, I'm Homa! I'm an #ActualLivingScientist and a #mom who study ice and snow! #DressLikeAWoman #MarchForScience⦠https://twitter.com/i/web/status/827929889105915906 https://chirp.cooleysekula.net/attachment/21693 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 10:21:57 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @marcodelmastro: #actuallivingscientist studying what everything is made of: smashing protons, recording debris then at computer try⦠https://twitter.com/i/web/status/828254866497748993 https://chirp.cooleysekula.net/attachment/21690 -
Stephen Sekula (steve)'s status on Sunday, 05-Feb-2017 09:51:28 EST
Stephen Sekula
A thoughtful look at unintended consequences: "How Trumpâ^TMs travel ban could hurt science" https://www.washingtonpost.com/news/speaking-of-science/wp/2017/01/29/how-trumps-travel-ban-could-hurt-science/ https://twitter.com/drsekula/status/828251983798747136/photo/1 https://chirp.cooleysekula.net/attachment/21686 -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 22:27:04 EST
Stephen Sekula
Exactly. After seeing that picture, I suspect the culprit is the dielectric inside the capacitor, as there is so much surface area tucked into that cylinder and, with age, I am sure the dielectric is more leaky than it was originally - though I am sure it's always been leaky. Still, 8 days and it only lost about half its stored charge... not bad! -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 20:51:14 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @profcooley: #actuallivingscientist who searches for dark matter. https://twitter.com/profcooley/status/828050548498759682/photo/1 https://chirp.cooleysekula.net/attachment/21664 -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 20:16:07 EST
Stephen Sekula
@bobjonkman, That is a beaut! -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 19:52:56 EST
Stephen Sekula
Thanks for a fun distraction tonight, @nybill and @bobjonkman! Attached is a calculation using some of the RC equations that, given the original post, estimates the resistance through which charge in the capacitor leaked over the 8 days and 1.5 hours it was sitting. Enjoy! https://chirp.cooleysekula.net/attachment/21662 -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 19:41:43 EST
Stephen Sekula
\"On being a scientist in America right now\" There is a question that hangs... https://t.co/B3kHt25bql -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 19:23:17 EST
Stephen Sekula
Actually, now that I see the original @nybill post I realize we can estimate the resistance in the circuit using the fact that he have us the start day of his charge and the current voltage. :-) I love this stuff. -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 19:21:23 EST
Stephen Sekula
@bobjonkman, BAH-DUM-BUM! :-) -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 19:20:45 EST
Stephen Sekula
From Twitter https://twitter.com/drsekula:
RT @NASA: We're funding studies of the first total solar eclipse over the U.S. in nearly 40 years that will occur on Aug. 21:⦠https://twitter.com/i/web/status/827959918598701056 https://chirp.cooleysekula.net/attachment/21651 -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 17:57:31 EST
Stephen Sekula
Oh, and C=22,000uF. -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 17:55:42 EST
Stephen Sekula
And you'll also need Ohm's Law, since V_0 = I_0 R will give you the voltage-current relationship at time zero, when V_0 = 64V. -
Stephen Sekula (steve)'s status on Saturday, 04-Feb-2017 17:54:14 EST
Stephen Sekula
CORRECTION: I = I_0 e^{t/(RC)}