Very cool and potentially handy if your into building pinhole cameras and own a Mac. This calculator figures out the f stop for you from the pinhole diameter and focal length. If you don’t own a Mac (and your should) you can use some online calculators here and here.
Concept House : PinholeCalc
Not all that long ago, like a month, I bought my wife an iPod Nano 2 GB. Both of us have PCs as our primary computers. I have a Mac but its a heavily upgraded blue and white G3 (now a G4 500 MHz thank you!) so I never expected to use the Nano on it. The Nano was un boxed (nice packaging) and instructions were read. It was charged over night and the next day she used it. The first day she only got three hours of life before it was saying ‘feed me!’. I figured that it needed to be run all the way down and the charged to set the battery life chip in it but the next time she used it it had the same life span. Weird. Ok, we took it back and exchanged it for a different one. We did the same thing with the same results. Three hours of use and then flat. Not finding any info on the web about this i decided to give it a shot on the old Mac. I hooked it up and it did it’s thing. I’ll say this, if you have a Mac the Nano integrates much better with it than the a PC. Not all that amazing but I figure I’d mention it because after I did that I was able to run it for 10 hours before it did an auto shut off. The music was played at 70% volume through the stock headphones with the same music as my wife had originally loaded on it. Did being attached to a Mac somehow jolt the energy management settings into life? Just weird luck? Has anyone else had this problem? Could this be a good reason to return it once again and just wait for the new Nanos to hit the market?
Oops. Looks like Apple is getting bit by the same bug as Dell did. Man, first weird shutdowns and screen effects and now batteries that can ‘splode? Maybe I’ll keep my old B&W G3 a little bit longer…
"The recall arises because, on rare occasions, microscopic metal particles in the recalled battery cells may come into contact with other parts of the battery cell, leading to a short circuit within the cell," Sony said. "Typically, a battery pack will simply power off when a cell short circuit occurs. However, under certain rare conditions, an internal short circuit may lead to cell overheating and potentially flames. The potential for this to occur can be affected by variations in the system configurations found in different notebook computers."
Not much chance of the effect being minor there. Well I’m sure that Sony (makers of the little sparklers) will make good and come up with a fix soon. Until then keep the battery out and keep your laptop on your desk if your not the gambling type.
Apple recalls 1.8 million iBook G4, PowerBook G4 batteries
This sucks. As I blogged before, some of the latest Apple Macbooks have been calling in sick. The owner of Lonelocust has been struggling with pretty much all of the problems that have plagued these new wonders. It’s almost biblical.
5 Known Problems with Macbooks _ I’ve had them all
Cool cool cool! Here is a clever DIY on how to run an old (but still quite usable) version of the Apple Mac OS (everyone remember system 7.2?) off from a 32 MB USB key drives. I’ve been looking for an excuse to buy a few 32MB thumb drives so I can case mod them, this would be a prefect thing to run off from them. Time to fire up my SE and pull a ROM image off from it. I’m off to play Mille Bornes!
[via Make and Diy Happy]
As my family has just become the proud parents of a bouncing baby iPod Nano (2GB) we might have to use this service in a year. I love the idea that someone has opened a store front to fix these handy devices. His rates are quite good and the wait times are darned short. i just wish there was one near me. Oh well, another reason to visit my favorite Canadian city, Toronto!
Matt Bremner has created quite the buzz with his iRepair services, using good parts from broken iPods purchased from eBay. Bremner’s tiny 250 sq. ft. Toronto store front services walk-in and mail-in "patients," averaging about 30 per day at a 10 minute average wait time.