The cool science image thread -

judanne · 11-26-2008, 08:37 PM

:

You could just use some other lossless truecolor format. PNGs are big, but not that big.

The PNG

The JPEG

Some autofluorescence under UV illumination of an antihistimine in water. 40X/0.60 - Olympus BX50 upright. I don't see a huge difference in image quality, but I wasn't using the confocal this time. If I get some time I'll do a more thorough comparison. This sample was a little thick for widefield fluorescence and I didn't take a z-stack so couldn't deconvolve it. Oh well.

Matty · 11-26-2008, 08:42 PM

top one looks slightly more detailed to me tbh.

in that kinda "move away from the monitor and squint, "hmm maybe"" kind of way of course.

judanne · 11-27-2008, 12:59 PM

Yeah, perhaps. I didn't zoom in either. There might be some difference upon closer examination. I didn't have enough time to fool around that much. It was kind of neat to see "live" on the camera because you could see the water moving and dissolving particles. The other thing that's cool is that you don't often see more than one colour with autofluorescence using the same emission filter (in this case, DAPI)...but enough play. I have to run off to a seminar and then I get to do some FRAP this afternoon and tomorrow. Live cells are way more fun to play with than pharmaceuticals.

rednoise · 11-28-2008, 04:11 PM

I'm not sure what makes tornadoes so fucking scary. I suppose because their path and what they do is fairly unpredictable.

SimplyNothing · 01-16-2009, 11:52 PM

Figured I'd post a video

http://ca.youtube.com/watch?v=Zr7wNQw12l8

3D Theoretical view of what the Universe looks like from the outside looking in.

Many of the shots you'll see of certain galaxies whilst traveling away from our sun (you travel from our sun to the edge of the Universe at the speed of light,) were taken by Hubble Deep space and then rendered onto a 3D Plane. I think it's pretty cool.

rednoise · 01-31-2009, 04:42 AM

A big tesla coil:

YouTube - BIGGG TESLA COIL OF OKLAHOMA

Tesla coil with some guy in a cage:

YouTube - Tesla cage of death

Slow motion video of lightning:

YouTube - Slow Motion Video of Lightning

YouTube - Slow Motion Video of a Lightning Strike to Tower

Jacob's ladder:

YouTube - Jacob's Ladder: 500kV Switch Opening

YouTube - MOT 6 stack Jacob's Ladder

YouTube - Monster Arcs

schneibler elf · 01-31-2009, 05:22 AM

SimplyNothing · 04-09-2009, 08:08 PM

I saw really cool evidence of the Primordial Field Hypothesis (put forward by Bruce Depalma and Nikola Tesla) in this interesting little Tesla Coil that doubled as a Guitar Amp. Whenever a note was plucked, electricity arced out into the air, and hit the exact note played on the guitar.

I need to go find that video now.

dinosaurs! · 04-10-2009, 08:13 PM

Helicopter beetle! (Flight is from 1:10 onwards.)

YouTube - One more 7000 FPS lady bug.

SimplyNothing · 04-13-2009, 07:38 PM

YouTube - Tesla Guitar

If ever I became famous... screw actual amps I'm just using this. That's wicked.

ofro · 01-04-2011, 01:53 AM

Cool picture of the lunar eclipse in 1999, seen from the Mir space station:

From NASA's Astronomy Picture of the Day

Autonemesis · 01-04-2011, 08:13 PM

That's the shadow of the moon. This is a solar eclipse, not a lunar eclipse.

Here is Saturn eclipsing the Sun as seen by Cassini.

ofro · 01-04-2011, 08:42 PM

:

Cool picture of the lunar eclipse in 1999, seen from the Mir space station:

From NASA's Astronomy Picture of the Day

Oops, sorry about that. What did I think?

Matty · 09-08-2011, 06:44 PM

been a while since this thread got updated but i thought i'd post these 3d reconstructions from our new(ish) spinning disc confocal system.

3d reconstruction, sobel filter - YouTube

thats a single cell (breast cancer line) image stack, circa 40 slices and sobel filtered to highlight distinct objects. Stains are for actin cytoskeleton (green) plus an adhesion protein implicated in tumour metastasis.

conv 3D raW - YouTube

and 2 cells from a section of convalaria (lilly of the valley) root stained for cell wall and connective proteins (orange) and starch (green) . Taken at circa 63x mag and a reconstructed stack of 105 image slices.

BobCox · 01-18-2012, 05:20 AM

It was one of those rare victories over gravity. Meaningless and shallow, but rare

Steviepinhead · 03-26-2012, 09:26 PM

Ocean surface currents visualized:
http://www.flickr.com/photos/gsfc/7009056027/
Hat-tip to TR member Eric Murphy.

~~PlaceboMessiah~~ · 03-27-2012, 08:49 AM

:

Ocean surface currents visualized:
http://www.flickr.com/photos/gsfc/7009056027/
Hat-tip to TR member Eric Murphy.

thats a mad supercomputer

~~PlaceboMessiah~~ · 03-27-2012, 09:03 AM

I brought a nug of weed into my buddy's geology lab where there's a scanning electron microscope. we got some decent tricomb action goin on:

Check out the spidermite webs!

~~Bartholomew Roberts~~ · 03-27-2012, 03:25 PM

Weed is illegal, please remove this post immediately. I have reported you to the Royal Canadian Mounted Police.

Steviepinhead · 03-28-2012, 11:27 PM

It's those spidermite webs which make all the difference between dynamite weed and cosmic weed.

Matty · 03-29-2012, 03:30 PM

you never know.

Martin.au · 04-01-2012, 10:52 PM

This is more technology than science, but it's still cool. Laser scanning has actually had some use on these forums. During the discussion of the Great Pyramid, the laser scan data solved a lot of queries about the exact shape of the sides of the Pyramid.

Adelaide Festival Centre Plaza laser scan - Custom Spatial Solutions - YouTube

Digital Surveys Heritage 3D Laser Scanning - YouTube

~~PlaceboMessiah~~ · 04-02-2012, 12:15 AM

i wonder what the angular resolution is

Martin.au · 04-02-2012, 01:55 AM

:

i wonder what the angular resolution is

Of the laser scanning? Depends on settings. I think I recall aiming for around 20mm average spacing on the main facade on the Festival Square scan, so that would be around 1' - 2' or so of angular resolution. The scanner we use can go down to 1" angular resolution, but it's actually only accurate to 6". Realistically we'd rarely go tighter than 30".

~~PlaceboMessiah~~ · 04-02-2012, 06:32 AM

are you indicating minutes and arc-seconds?

11-26-2008, 08:42 PM	#278354 / #52
Matty You wot? : Mar 2008 : Ontario, Canada : 22,200	top one looks slightly more detailed to me tbh. in that kinda "move away from the monitor and squint, "hmm maybe"" kind of way of course. __________________ It is the duty of all human beings to think God out of existence. Then we have a future. Because then - and only then - do we take full responsibility for who we are.

11-28-2008, 04:11 PM	#280302 / #54
rednoise Death hilarious : Mar 2008 : Nordic Imperium : 24,353	I'm not sure what makes tornadoes so fucking scary. I suppose because their path and what they do is fairly unpredictable. __________________ How in the hell can a man enjoy being awakened at 6:30 a.m. by an alarm clock, leap out of bed, dress, force-feed, shit, piss, brush teeth and hair, and fight traffic to get to a place where essentially you made lots of money for somebody else and were asked to be grateful for the opportunity to do so?

01-04-2011, 01:53 AM	#1245528 / #61
ofro Ol' Frothy : Mar 2008 : Atlanta, GA : 4,764	Cool picture of the lunar eclipse in 1999, seen from the Mir space station: From NASA's Astronomy Picture of the Day Last edited by ofro; 01-04-2011 at 02:00 AM. : correct the date when picture was taken

01-04-2011, 08:13 PM	#1246312 / #62
Autonemesis Flipper Offer : Jun 2009 : Location: Location: : 17,076	That's the shadow of the moon. This is a solar eclipse, not a lunar eclipse. Here is Saturn eclipsing the Sun as seen by Cassini. __________________ As if.

01-18-2012, 05:20 AM	#1673648 / #65
BobCox bObCoX : Sep 2011 : Under Your Doormat : 1,872	It was one of those rare victories over gravity. Meaningless and shallow, but rare It was one of those rare victories over gravity. Meaningless and shallow, but rare __________________ Oh sure! Post a Signature in these forums and the next thing you know your identity's been stolen along with your Pants and Wallet.

11-27-2008, 12:59 PM	#279145 / #53
judanne Senior Member : Mar 2008 : 209	Yeah, perhaps. I didn't zoom in either. There might be some difference upon closer examination. I didn't have enough time to fool around that much. It was kind of neat to see "live" on the camera because you could see the water moving and dissolving particles. The other thing that's cool is that you don't often see more than one colour with autofluorescence using the same emission filter (in this case, DAPI)...but enough play. I have to run off to a seminar and then I get to do some FRAP this afternoon and tomorrow. Live cells are way more fun to play with than pharmaceuticals.

01-31-2009, 05:22 AM	#368176 / #57
schneibler elf The People's Moderator The People's Admin : Apr 2008 : 50,099

04-09-2009, 08:08 PM	#442028 / #58
SimplyNothing Member : Jan 2009 : 30	I saw really cool evidence of the Primordial Field Hypothesis (put forward by Bruce Depalma and Nikola Tesla) in this interesting little Tesla Coil that doubled as a Guitar Amp. Whenever a note was plucked, electricity arced out into the air, and hit the exact note played on the guitar. I need to go find that video now.

03-26-2012, 09:26 PM	#1753056 / #66
Steviepinhead Senior Member : Mar 2008 : Seattle, WA : 36,673	Ocean surface currents visualized: http://www.flickr.com/photos/gsfc/7009056027/ Hat-tip to TR member Eric Murphy.

03-27-2012, 09:03 AM	#1753447 / #68
~~PlaceboMessiah~~ Banned : Jun 2008 : 15,853	I brought a nug of weed into my buddy's geology lab where there's a scanning electron microscope. we got some decent tricomb action goin on: Check out the spidermite webs!

03-27-2012, 03:25 PM	#1753670 / #69
~~Bartholomew Roberts~~ Banned : Mar 2008 : 44,650	Weed is illegal, please remove this post immediately. I have reported you to the Royal Canadian Mounted Police.

03-28-2012, 11:27 PM	#1755730 / #70
Steviepinhead Senior Member : Mar 2008 : Seattle, WA : 36,673	It's those spidermite webs which make all the difference between dynamite weed and cosmic weed.

03-29-2012, 03:30 PM	#1756473 / #71
Matty You wot? : Mar 2008 : Ontario, Canada : 22,200	you never know. __________________ It is the duty of all human beings to think God out of existence. Then we have a future. Because then - and only then - do we take full responsibility for who we are.

04-02-2012, 12:15 AM	#1761336 / #73
~~PlaceboMessiah~~ Banned : Jun 2008 : 15,853	i wonder what the angular resolution is

04-02-2012, 06:32 AM	#1761668 / #75
~~PlaceboMessiah~~ Banned : Jun 2008 : 15,853	are you indicating minutes and arc-seconds?

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