Double Layer Perianth With Different Colour Flower? Can Anyone Tell Me What Kind Of Flower Is This?
Double layer perianth with different colour flower? Can anyone tell me what kind of flower is this?
More Posts from G-sin and Others
Standup or shut up!
怎麼覺得自己從沒長大過，是傻、天真還是懶墮，但不在想躲在別人懷抱里，是時候用自己的雙腳企起身~
This is a self reflection of general things that we do everything, everyday with or without considerations, regard or regardless on beneficial and harms to ourselves…
The fundamental interconnectedness of all things… no one are innocent. I think, is just my opinion.
This is design to confuse yourself into thinking about the things that we are doing.
What do u think?
dream about atomic particle printer
Last night I dreamed about atomic particle printer the idea of making something out of almost nothing is highly possible! Oh my what am I thinking?
IBM solar collector magnifies sun by 2,000x (without cooking itself), costs 3x less than similar systems
Cleverly combining solar PV with solar thermal to reach 80% conversion efficiency
Concentrating the sun’s ray onto solar photovoltaic (PV) modules requires walking the fine line between optimizing power output and not literally melting your very expensive super-high-efficiency solar cells. A team led by IBM Research seems to have found a way to push back the line. They have created a High Concentration PhotoVoltaic Thermal (HCPVT) system that is capable of concentrating the power of 2,000 suns onto hundreds of triple junction photovoltaic chips measuring a single square centimeter each (they even claim to be able to keep temperatures safe up to 5,000x). The trick is that each solar PV cell is cooled using technology developed for supercomputers; microchannels inspired by blood vessels but only a few tens of micrometers in width pipe liquid coolant in and extract heat “10 times more effective than with passive air cooling.”
Waste not
The beauty is that this heat is not just thrown away. This system gets useful work out of it. So while the PV modules are 30%+ efficient at converting the sun’s light into electricity, another 50% of the sun’s energy is captured as heat and can then be used to do things like thermal water desalination and adsorption cooling. This means that the system is capable of converting around 80% of the collected solar energy into useable energy (though the electricity is of course more useful than the thermal energy).
A single collector can produce about 25 kilowatts of electricity. Below is a closeup of some PV cells where the light is being concentrated. Notice the piping to bring the liquid coolant.
"The design of the system is elegantly simple," said Andrea Pedretti , chief technology officer at Airlight Energy. "We replace expensive steel and glass with low cost concrete and simple pressurized metalized foils. The small high-tech components, in particular the microchannel coolers and the molds, can be manufactured in Switzerland with the remaining construction and assembly done in the region of the installation. This leads to a win-win situation where the system is cost competitive and jobs are created in both regions."
Adding... most of us the individuals would achieve goal on each self-individuals, regardless on good or bad(it is not important, nature would do any means to avoid dangers for survival). But to set a common goal with in groups or communities thou could benefit greater than one individual's interests... But over the years how could we be so blindly enough to miss to see what we done to endanger ourselves. It seems like(it is a fact) the environment that we glow up with effects our behaviour into self-interested more. So, what is our goal as human beings in this very chapter of era? What can truly benefit our life and our descendants? What can we teach them? (I'm thinking of massive picture of the earth plus the dimension of time...)
What is our goal?
Despite our knowledge, understanding of war and hatreism, worthless competition of economic, wealth and abundances… I ask myself what is our true goal as to be a human being?
Project kenzo picnic table, self-contractible public picnic table,
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g-sin reblogged this · 12 years ago
