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1 January 2012, 2:20 UTCaeolus organ synth moved to github
Fons has not been active on aeolus for a while, so mental and I decided to fork to github:
ping us if you want write access.
26 November 2011, 12:07 UTChacking the KIS-3R33S power supply to drive 10W LEDs
I've been looking for a way to drive power LEDs from a computer for my terrarium lighting. Newer LEDs are giving 160lm/W, which is on par with CFLs and is 'easily' computer dimmable. But to get that performance requires a fairly efficient power supply.
I noticed the KIS-3R33S 3.3V supply on special for just $0.5 each on a drop shipping/distressed stock internet shop, so I ordered a box to see whether I could hack them into independent supplies for driving LEDs:
20 August 2011, 10:55 UTC3d rocks
27 July 2011, 9:58 UTCSweetApartment 3D
After the success of using SweetHome 3D for our kitchen, I figured I should use it for our apartment redecorating project.
23 July 2011, 4:18 UTCTesting my new stealth clothes
29 June 2011, 10:58 UTCImplementing the Hogwarts great hall ceiling.
A telescope works by converting photon directions into positions on the film (Parabolic reflector). In the opposite direction, a wide viewing angle display placed where the film goes will produce a parallel projection of the image as a beam, such that no matter where you stand looking into the beam, the image will appear in the same direction. This is the same as if the image were projected on a screen at infinity. Even clouds will look fine, because they are not really distinguishable from images infinity. The sun or moon will stay in the same direction, and the light it projects will all be parallel, making realistic shadows.
So all you need is a parabolic reflective ceiling, a suitably placed mirror (perhaps above a chandelier) reflecting into a sufficiently bright display (the display could go directly near the focus, but a secondary mirror would be easier to hide. A sufficiently large and bright LED screen might be practical today, but it would not be able to emulate the sun's intensity. Instead, we might use a separate high intensity light source such as a sulphur plasma light on an arm that tracks across the image.
(And parabolic arches are a great shape for ceilings because they ensure that there is no shear force inside the structure)
23 May 2011, 12:22 UTCCome as you aren't party
Toby had a come as you aren't costume party. After deciding that going as sheldon going as the green lantern would be too hard, and lacking a part for Lynne, we decided to go as Lois and Clarke/Superman.
23 May 2011, 10:16 UTCBarrington Tops partir deux
More photos from our trip to the tops.
22 May 2011, 12:18 UTCFrank L Baum the Chiroptologist
People don't realise that when he wasn't writing political satire dressed up as children's stories, he was thinking about the phylogeny of bats.
1 May 2011, 12:22 UTCBarrington Tops
Been very busy of late, so not much blog posting. Anyway, we went to the Tops for the Easter weekend and on one hike we went through some Gondwanaland remnant forest. It's dark, mossy, and viney. Here's an attempt to recreate the feel using HDR made from some handheld pictures:
And some moss:
Is this a lycopodium?
Big valley:
A swamp on top of the mountain (another handheld HDR):
24 February 2011, 0:30 UTCMoss garden
18 December 2010, 9:11 UTCDowntime
15 December 2010, 9:10 UTCThe cat twist
21 October 2010, 10:43 UTCIn Brugge
9 September 2010, 3:43 UTCPlant identified
4 September 2010, 9:21 UTCBlogger turns 11
30 August 2010, 14:00 UTCA trip to Royal National Park
13 August 2010, 5:06 UTCCup of brown joy
3 August 2010, 3:12 UTCInstalling a through wall pipe in a wootank
31 July 2010, 0:56 UTCPoffertjes for slackers
19 July 2010, 2:09 UTCBeaming
18 July 2010, 2:00 UTCAttic gaps
16 July 2010, 1:25 UTCVirtual Insanity
16 July 2010, 0:20 UTCMaking clothing
14 July 2010, 1:15 UTCinstalled
11 July 2010, 5:13 UTCClimbing the Gloucester tree
8 July 2010, 1:03 UTCSteel yourself
1 July 2010, 8:04 UTCNice furniture you can put away when not in use
30 June 2010, 5:15 UTCThe purpose of lists
24 June 2010, 2:48 UTCA nice day in the city
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