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I've been so busy I haven't been able to take many pictures lately, so I'm going though a bit of photography withdrawal here. To try to alleviate the pain, I grabbed my camera and an old junk SCSI controller I had lying around at work, and I made a picture. :-) It was taken with my Sigma 30mm f/1.4 at f/1.8 where my recent testing shows that it isn't very sharp. This is a 100% crop, though, and I used USM in Gimp (at 3.0) to sharpen it up a bit. Not a bad result IMO.
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" Erica Marshall of muddyboots.org "
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Digilent's Genesys board brings the power of the Xilinx® Virtex®-5 FPGA to a surprisingly uncomplicated design platform. With gigabit ethernet, high-speed memory, high-resolution audio & video circuits, and a host of USB connectivity options, the Genesys board includes proven circuits used in the most demanding designs. From complex systems to dedicated high-performance applications, the Genesys board brings workable solutions to complex problems.
store.digilentinc.com/genesys-virtex-5-fpga-development-b...
The other day I woke up and thought, "It's about time I bought myself 1024MB of DDR PC2700 333MHz RAM". And so I did, in the hope that it would help speed up my ageing PC a bit. And it has, a bit. I was surprised to find out that my PC is now 5 years old. Positively ancient in computing terms. It has been expanded this way and that and is just managing to keep up with the demands placed upon it.
I'm glad about that because I'd rather spend £50 on some extra RAM than £700 on a new PC, or £1,600 on a new Mac. And I've heard some bad things about Windows Vista. Like it needs at least 2GB of RAM just to run the operating system (good grief!) and there are issues with drivers and so on.
So hopefully my old Dell will struggle on a bit longer.
I guess we take memory chips for granted but they are a pretty essential part of everyday life for a lot of people. Computers can't work without them, a large proportion of photographers depend on them to store their shots safely until they get home. And going off on a brief geek tangent I seem to remember reading that your average DSLR has 2 different lots of memory in addition to the SD / CF card you add in. Firstly there is a small bank of ultra fast RAM to initially store the image straight off the sensor, then the image data gets sent off to a larger but slower memory area while the fast RAM deals with the next shot and so on. Once the camera has processed the images in the stage 2 memory they then get put on the memory card for final storage.
So when we fire off 5 frames a second for a couple of seconds there's a hell of a lot going on inside the camera to deal with the avalanche of data!
Anyway, I will now remove my anorak and lie down for a bit.
Taken January 2008.
Because Brooke's been pretty sick the last couple of days I haven't had time to much more creative on a daily basis than just shoot what I have laying around my desk. I've got a couple of these hard drives laying around and I thought they looked pretty cool, especially with the limited depth of field. I took this one inside the Kleenex box as well, I think the extra reflectiveness of the box pumps up the lighting just a little bit, makes things look just a bit brighter. I'm pretty sure that qualifies as "Ghetto Lighting", perhaps I'll submit it for the Digital Photography School weekly assignment if nothing else comes to mind.
Acelerômetro, é um instrumento para medir a aceleração.
Partindo da segunda lei de Newton, é possível construirmos vários tipos de acelerómetros. Podemos visualizar o seu princípio de funcionamento se imaginarmos um copo com água até a metade. Se colocarmos o copo sobre uma superfície plana e empurrarmos para frente, notamos que a água se move. Quanto mais forte for o movimento, mais a água oscila. O que o acelerómetro faz é medir estes movimentos, através do ângulo que o líquido forma em relação ao seu estado original e através dele fornece-nos a aceleração que deve ter sido aplicada ao copo. Este é um exemplo rudimentar de acelerómetro. Modelos muito mais sofisticados são produzidos atualmente. Sua aplicação em larga escala na indústria automotiva promoveu a redução do preço e popularização da tecnologia, que pode ser encontrada até em relógios de pulso, alguns aparelhos de telefonia móvel e videogames.
O acelerômetro possibilita uma nova interação com a máquina. Muito mais que avaliar a posição relativa do aparelho e ajustar o visor do celular, o instrumento que mede acelerações está abrindo um leque de alternativas inovadoras.
Desde que o iPhone inovou com o recurso, celulares, players e câmeras digitais abusam do posicionamento automático a imagem, mudar de faixa ou executar ações sem que botão algum seja pressionado. Em um computador, por exemplo, uma das funções do acelerômetro é evitar que o disco rígido seja danificado durante uma queda, parando o HD durante movimentos bruscos.
Mas é nos jogos que este recurso tem sido mais explorado, a exemplo do controle do Nintedo Wii, a interatividade nos games está em alta graças a este instrumento. Desde simples aplicativos que simulam o movimento de um sabre de luz até volantes de carros em títulos realistas, jogar um game ganhou um novo sentido com ele.
fontes: tecmundo e wikipédia
Microchip's MRF89XA transceiver has extremely low receive current of 3 mA for longer battery life in 868, 915 and 950 MHz Sub-GHz wireless networks. For additional information, please visit Microchip’s online Wireless Design Center at www.microchip.com/get/D2C7.
The same camera and connector is in the Nokia 3200. In this photo, the lids have been removed from the screening cans.
This is a picture of the ' magic wand clock' you can read about at www.instructables.com/id/E50R4QXZAOEWP86MXK/ .
This is a persistence of vision project.
Mikroprozessor von der deutschen Firma INFINEON im Metz Fernseher 72TD873.
Die Metz-Werke GmbH & Co KG produziert Fernseher sowie digitale Fotoblitzgeräte. Außerdem unterhält sie eine Kunststofffabrik. Am 28. November 1938 wurde das Unternehmen durch Paul Metz gegründet. Alle Geräte werden im Werk in Zirndorf im Landkreis Fürth gefertigt.