Just add water, Your Computer Will Work: Stanford Engineers’ Marvel
Standford University scientist Manu
Prakash and his team of students have developed a computer that can operate
using the fundamental physics principle of moving water droplets generate
energy, which may heral new class of computers altogether based on manipulating
water droplets for energy.
Ever since he was a graduate student,
Prakash tossed with the idea of ussing little droplets as bits of information
and utilize the precise movement of those drops to process both information and
physical materials simultaneously. He first created a rotating magnetic field
that could act as clock to synchronize all the droplets.
When the idea looked more promising, Prakash
and his graduate student Georgios “Yorgos” Katsikis, worked on manipulating
droplet fluid dynamics with an operating clock, demonstrating “a synchronous,
universal droplet logic and control.”
The droplet computer can
theoretically perform any task like the conventional electronic computer but
currently at slower speed and the team hopes to fasten the process in due
course. The team is focusing on both information processing as well as
algorithmically manipulating physical matter.
“Our goal is to build a completely
new class of computers… Imagine if when you run a set of computations that not
only information is processed but physical matter is algorithmically
manipulated as well.
We have just made this possible at the mesoscale,” says
Prakash.
The ability to precisely control
droplets using fluidic computation could have a number of applications in
high-throughput biology and chemistry, and possibly new applications in
scalable digital manufacturing.
Their paper, published in the journal Nature Physics, describes the fundamental
operating regime and demonstrates building blocks for synchronous logic gates,
feedback and cascadability, which are required for scalable computation.
They have demonstrated a simple-state
machine including 1-bit memory storage, known as “flip-flop” using the above
building blocks.
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