Cool Future Technologies
?New cool ways to do things, clever uses of new – and sometimes old – technology?
Curated by
Sepp Hasslberger
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www.technologyreview.com
– March 7, 1:31 PM
Graphene Battery Turns Ambient Heat Into Electric Current – Technology Review
Physicists have built a graphene battery that harvests energy from the thermal movement of ions in solution…
The
copper ions, which have a double positive charge, move through the
solution at a rate of about 300 metres per second thanks to the thermal
energy of the solution at room temperature.
When an ion
smashes into the graphene strip, the collision generates enough energy
to kick a delocalised electron out of the graphene.
The
electron then has two options: it can either leave the graphene strip
and combine with the copper ion or it can travel through the graphene
strip and into the circuit.
It turns out that the
mobility of electrons is much higher in graphene than it is through the
solution, so the electron naturally chooses the route through the
circuit. It is this that lights up the LED.
Scooped by Sepp Hasslberger
www.peswiki.com
– March 26, 4:18 PM
Endless Electric Field Generator [Video]
This is a short item about a solid state electric generator that could power electronics…
Imagine
being able to provide power on the circuit board to each component that
needs power, continuously, from the surroundings, so that no battery is
required; and no charging of the device is needed. Imagine no heating
issues from the power, no overcharge; and all this being cheaper than
the present method of using batteries and power supplies.
Latest news from Sterling about it:
I
received the following input about the EEFG: „They have the next
generation now and it knocks the socks off the first ones with much
greater power generation. This will be the power source for the next
100+ years. I”m really excited.”
Scooped by Sepp Hasslberger
www.youtube.com
– March 23, 1:50 PM
N?vaVideo – Nat Mulcahy e la LuciaStove (Now with English subtitles)
This is decidedly
low tech, but very efficient. Nat Mulcahy has invented a simple system
that allows the burning, not of the wood itself, but of the gas that
comes out of the wood when heated.
This results in a
clean burn and a high use (over 90 %) of the energy contained in the
combustible substance. Pellets of wood or other biological material are
best to use. What is left over after combustion is biochar, the empty
„shell” of the biological material, dry carbon that is great as a
fertilizing substance for agriculture. With time, it forms what is known
as „terra preta”, very fertile high carbon soil.
The video is in Italian, but there are English subtitles…
Scooped by Sepp Hasslberger
www.physorg.com
– March 14, 10:58 PM
3D-printer with nano-precision
Printing three dimensional objects with incredibly fine details is now
possible using „two-photon lithography”. With this technology, tiny
structures on a nanometer scale can be fabricated.
Researchers
at the Vienna University of Technology (TU Vienna) have now made a
major breakthrough in speeding up this printing technique: The
high-precision-3D-printer at TU Vienna is orders of magnitude faster
than similar devices (see video). This opens up completely new areas of
application, such as in medicine.
Scooped by Sepp Hasslberger
www.physorg.com
– March 14, 8:29 PM
A cheap and fully optical solution for ultra-fast internet
Blisteringly fast Internet speeds, more robust connections and a big
increase in network capacity at little extra cost, even in rural areas?
Scooped by Sepp Hasslberger
www.physorg.com
– March 8, 4:10 PM
Nanotrees harvest the sun”s energy to turn water into hydrogen fuel
