Scientists have developed an
eight-inch remote-controlled metal penis that may help men struggling with
severe erectile dysfunction. Developed by researchers from the University of
Wisconsin in the US, the heat-activated device can be used at the press of a
button in just two minutes. The implant will help revive the sex lives of
people who fail to respond to drugs like Viagra or other treatments, experts
say. The implant is made from nitinol – also known as “memory metal” – which is
a mixture of nickel and titanium. It can change shape when heated or cooled The
Sun reported, at body temperature of 37°C, the implant is just a couple of
inches long. However, when heated to 42°C, it expands to eight inches. A shape
memory alloy-based penile prosthesis represents a promising new technology in
the treatment of erectile dysfunction. Surgeons can make a tiny incision at the
bottom of the penis and insert the implant – made from stretchy latex covered
with a coating of memory metal. Attached to one end is a tiny heating coil. The
soil can be turned on by a remote held over the groin, generating a metal field
which triggers a current. The coil then warms the implant, making it expand and
fully erect. A cool flannel makes the swelling go down.
Saturday, 3 December 2016
California Targets Cows To Combat Warming
California is taking its fight against
global warming to the farm. The nation’s leading agricultural state is now
targeting greenhouse gases produced by dairy cows and other livestock. Despite strong
opposition from farmers, Governor Jerry Brown signed legislation in September
that for the first time regulates heat-trapping gases from livestock operations
and landfills. Cattle and other farm animals are major sources of methane, a
greenhouse gas many times more potent than carbon dioxide as a heat-trapping
gas. Methane is released when they belch, pass gas and make manure. The new law
requires dairies and other livestock operations to reduce methane emissions 40%
below 2013 levels by 2030. Officials are developing the regulations which take
effect in 2024.
New IVF Tech Lets Doc Take Baby 'Cellfies'
New IVF technology being developed
in the United Kingdom is allowing parents to obtain baby ‘cellfies’ – images of
their children when they are just a few cells in a petri dish. In recent years,
IVF clinics have developed cutting-edge time-lapse photography designed to
monitor cell development in the first few days, so that doctors can pick the
healthiest embryo for implantation in the womb and boost the chances of having
a baby. The technique has also allowed parents to witness beginning of their
child’s life at the very moment of conception, and in the crucial few days
after fertilization. Clinics in the United Kingdom are also set to start trialing
technology to allow prospective mothers and fathers to watch the live footage
as the embryos are developing in the lab. Time-lapse technology has allowed
researcher to get all these images from the first few days after conception and
put them on a USB stick so that parents have pictures of their children,
literally, from day one, when they are still in the laboratory. But it won’t be
long before parents will be able to dial into the clinic using a unique number
and see how their embryos are getting on in real time. Embryos are very
sensitive, so in the past researcher could only get them out every 24 hours and
have a look at how they were doing, but now they photograph them every 10
minutes. The pictures go way beyond than the current earliest images taken by
ultrasound of babies in the womb.
Nuclear-Waste Batteries That Will Last For 5,000 Years
Scientists have developed a new
technology that uses nuclear waste to generate clean electricity in a nuclear
powered battery. Researchers from the University of Bristol in the UK have
grown a man made diamond that, when placed in a radioactive field, is able to
generate a small electrical current. The development could solve some of the
problems of nuclear waste, clean electricity generation and battery life,
researchers said. Unlike the majority of electricity generation technologies,
which use energy to move a magnet through a coil of wire to generate a current,
the man made diamond is able to produce a charge simply by being placed in
close proximity to a radioactive source. There are no moving parts involved, no
emissions generated and no maintenance required, just direct electricity
generation. By encapsulating radioactive material inside diamonds, researcher
turns a long term problem of nuclear waste into a nuclear- powered battery and
a long-term supply of clean energy. The team has demonstrated a prototype ‘diamond
battery’ using Nickel-63 as the radiation source. However, they are now working
to significantly improve efficiency by utilizing carbon-14, a radioactive
version of carbon, which is generated in graphite blocks used to moderate the
reaction in nuclear power plants. Research by academics at Bristol has shown
that the radioactive carbon-14 is concentrated at the surface of these blocks,
making it possible to process it to remove the majority of the radioactive
material. The extracted carbon-14 is then incorporated into a diamond to
produce a nuclear-powered battery. Carbon-14 was chosen as a source material
because it emits a short-range radiation, which is quickly absorbed by any solid
material. This would make it dangerous to ingest or touch with your naked skin,
but safely held within diamond, no short-range radiation can escape. In fact,
diamond is the hardest substance known to man, there is literally nothing
researcher could use that could offer more protection. Despite their low-power,
relative to current battery technologies, the life-time of these diamond
batteries could revolutionize the powering of devices over long timescales. Using
carbon-14 the battery would take 5,730 years to reach 50% power, which is about
as long as human civilization has existed. Researchers envision these batteries
to be used in situations where it is not feasible to charge or replace conventional
batteries. Obvious application would be in low-power electrical devices where
long life of the energy source is needed, such as pacemakers, satellites,
high-altitude drones or even spacecraft.
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