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Power supply for 6V filament of valve Line pre-amp. It could be use in a Phono stage due its ultra low noise.
The warning light outside the fridge casts an eerie glow across the stainless steel bulkhead Photo Journey
My bedside table lamp is misbehaving a lot lately, got two light bulbs broken in two weeks. sigh... running low on light bulbs!
Small mosaic of this active region and its filaments.
Take a look also at my astronomy video channel.
I've been dying to get a good shot of these lightbulbs in my bathroom... but I still don't think this is good enough.
Oh well.
Two orange-gelled flashes (580EX (thanks, Alan!) and 580EXII) @ 1/16 to left and right with baffles to keep the background dark, triggered via ST-E2.
Close up on prominence at 3 meter of focal with a Daystar filter.
Take a look also at my astronomy video channel.
Rather than “treadmilling” like animal cell actin filaments, Staiger et al. find that plant cell actin dynamics rely on rapid polymerization followed by severing events (arrows). (JCB 184(2) TOC2)
This image is available to the public to copy, distribute, or display under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported license.
Reference: Staiger et al. (2009) J. Cell Biol. 184:269-280.
Published on: January 26, 2009.
Doi: 10.1083/jcb.200806185.
Read the full article at:
Single exposure for disc and prominence, splitted post-processing.
Take a look also at my astronomy video channel.
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
The bulb is back! Apparently this type of bulb will soon be banned. Is it the power they use or the gas that's inside them? They're probably not 'green'.
Captures in hydrogen-alpha, The Sun 02.10.16. Equipment: Altair Astro 102ED scope, Daystar Quark Chromosphere filter, Altair Astro v1GPCAM mono. Stacked with AS2!, sharpened in Registax6 and post processed with Photoshop CC.
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
With 20 turn prototype secondary winding to be replaced by high voltage wire. 5V open circuit, 16A short circuit.
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones