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Computing Sciences hosted 14 local high school students as part of an outreach program to introduce students to various career options in scientific computing and networking. The sessions include presentations, hands-on activities, and tours of facilities. The program was developed with input from computer science teachers at Berkeley High, Albany High, Richmond's Kennedy High, and Oakland Tech. Computing Staff present a wide range of topics including assembling a desktop computer, cyber security war stories, algorithms for combustion and astrophysics and the role of applied math.
credit: Lawrence Berkeley Nat'l Lab - Roy Kaltschmidt, photographer
XBD201007-00882-08
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taken awhile back to help entry into LibraryThing - seemed a better plan than schlepping huge stacks of books back & forth over & over...have gotten quite a few more books that don't appear here tho.
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Hosted in collaboration with Google's CS4HS initiative, the MIT Creative Computing 2012 workshop was held at the MIT Media Lab, August 8-11, 2012.
Through a combination of 22 years, a lot of weather, a little unreliability, and some super-cheap auctions I seem to have amassed, at the time of writing, nine cycle computers.
From left to right:
Cateye Mity / CC-MT100
Cateye Enduro 2 / CC-ED200
Cateye Mity 3 / CC-MT300
Sigma Sport BC1200
Cateye Astrale / CC-CD100
Cateye Mity 8 / CC-MT400
Cateye Micro Wireless / CC-MC100W
Planet Bike protegé 8.0
In 1991, when the Mity was brand new, you got a clock instead of average speed; the Cateye Vectra of a year or two previously gave you average speed but no clock! You had to buy the Cateye ATC (which cost as much as a pair of Oakleys) to get both. I made do by adding my distance and time into a matrix on my programmable calculator, each day, and having it do the maths (and produce the excessively nerdy graphs). The Mity still works perfectly internally, but the metal contacts on both the unit and its bracket have worn down too much.
The Enduro 2 was good because it came with a great big thick sensor cable for gnarly mountain bikers, and also ideal for folding bikes; and the Mity 3 was actually exactly the same inside but came with a microscopically thin, fiddly cable. Like everyone else, Iomega and Nintendo included, Cateye leapt on the translucent plastics bandwagon (courtesy of the original Apple iMac) so you could buy the Mity 3 in Clear, Strawberry, Tangerine, Grape, Lime and Blueberry colours, as well as Black. By then you got a 12/24hr clock and average speed, two trip odometers and a programmable total odometer for when your battery ran out. Cateye had already done the offroady thing by repackaging the old Mity 2 (a Mity mk1 but with average speed and clock) in a new curvaceous case and calling it the Tomo (CC-ST200), then giving it the thick cable treatment and calling it the Tomo XC (also CC-ST200), which later became the limited run, go-faster-striped Enduro (CC-ST250), which was the progenitor of the silver Enduro 2 that used a new case.
The Sigma was and still is a great computer, functionally, with dual tyre sizes, dual odometers with programmable total, cadence, trip time and total time and everything, but it was always rather unreliable. When did you last see a bike computer crash electronically? After the fourth or fifth lock-up I decided that it'd had long enough, so I replaced it with the Planet Bike computer.
Then there's the Astrale, that computer beloved of tandem and recumbent bike riders for whom very long sensor cables and cadence measurement are almost essential. This was my first one; I had another just like it on my Speedmachine recumbent. Still no programmable odometer, though; the Astrale was new for 1993, and was ultimately just a Cateye Kosmos (CC-ST300) with an extra contact for the cadence sensor, and the Kosmos was really just a Tomo with a more powerful chip (wheel size in millimetres, rather than centimetres). Still keeping track?
And to the Mity 8, which replaced my newer Micro Wireless! I expected the Mity 8 to be functionally identical to the Mity 3, just in a restyled case, but Cateye had to change the various modes, and made the adjust/reset button completely unintuitive.
The Micro Wireless I originally bought for my Brompton, because wires were an extra thing to worry about on a folding bike with hinges and clamps and cables going everywhere. It's actually a very nice little unit, with a backlight (though Sigma did that already) and a clever menu system for changing the settings. But it only transmits about two feet before going strange. Just about every bike computer these days has gone wireless. Cateye's original Micro, with twin rubber buttons, was the ancestor of the Astrale, but the later Micro Wireless doesn't do cadence. What goes around, comes around as they say, and I have acquired another Micro Wireless now, although it came with the bike.
Despite being a fan of the generally superb Cateye reliability (EL200 front light excepted) I was really impressed with the Planet Bike protegé 9.0 that a friend had. No buttons, big display, chunky cable, programmable odometer, dual tyre sizes...but I didn't like the white case or feel I needed a thermometer. So I bought the 8.0 instead: it matches my brushed aluminium RANS, and I like it a lot.
It's still amazing to think that a cycle computer, hardly the most computationally demanding accessory that was ever invented, can cost so much. Who really needs faux-calorie estimation, or altitude measurement, or carbon offset fluff, or estimated time to destination? If you want those things, buy a GPS and a calculator and do it properly.
And my favourite of the lot? Still the Mity 3. Cateye grouped all the functions on three levels, so normally you only cycled between trip time, trip distance and average speed (since current speed was always displayed). Trip distance 2, maximum speed and the clock all resided in level two, and the odometer was in level three. You could carry the unit in a pocket and not worry about it getting reset accidentally either, with the buttons needing a whole second's press. It was all beautifully convenient, and then they stopped making it.
Scientists used quantum chemical calculations and computer simulations to model how a platinum catalyst interacts with water. (Catalysts are important in nearly everything we manufacture today). The oxygen atoms, in water, are depicted in red; the hydrogen molecules are white, and platinum atoms are in blue-gray. High-level details of the structure can be seen in the reflections of each atom surface.
--more details--
The ice-like hexagonal structure of water molecules interacting with and above a model platinum catalyst surface is determined from quantum chemical calculations. Oxygen atoms in water shown as red, hydrogen atoms as white; platinum atoms are shown in bluish-grey. High-level details of the structure can be seen in the reflections of each atom surface.
Rees Rankin (Argonne's Center for Nanoscale Materials)
Photo courtesy of Argonne National Laboratory.
Cloud computing is highly inconvenient to keep such data in memory and exhaust the space as the data is not only confidential but also very large to be accessible with ease. However, cloud computing has made this access very easy and storage very convenient.
Hosted in collaboration with Google's CS4HS initiative, the MIT Creative Computing 2012 workshop was held at the MIT Media Lab, August 8-11, 2012.
I'm getting a Lily Pad wearable open source arduino microcontroller in the mail soon and i can't wait to get going with it!
Cloud computing, cloud computers, cloud data center, cloud IT infrastructure, cloud network, IT networking, SAAS
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Hosted in collaboration with Google's CS4HS initiative, the MIT Creative Computing 2012 workshop was held at the MIT Media Lab, August 8-11, 2012.
© István Pénzes.
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19 May 2013
Polaroid 600SE
Mamiya 75mm 5.6
Fuji FP-100C
Canon Canoscan LiDE 700F
Before you get to understand concerning cloud computing OS you must know about web desktop. A web desktop or a virtual desktop is where you get all your hard disk, operating system and software applications on the service provider’s server (unlike the one you have at your home). Reading more at www.topthingz.com/top-list-of-cloud-computing-operating-s...