Tiniest Fish Discovered
THey must have needed a really small hook, but Australian scientists
say they've caught what they believe is the world's smallest and lightest
fish. In fact, researchers at Sydney's Australian Museum say the Stout
Infantfish is so minuscule - it would take a million of them to tip
the scales at one kilogram - they are seeking to have it listed as
the world's smallest and lightest vertebrate. The microscopic fish,
first discovered by Australian scientists in 1979 but not classified
until last month, is formally identified as Schindleria brevipinguis.
Males of the species are just 7 millimetres long while females average
8.4 millimetres. The world's current acknowledged smallest vertebrate
is the dwarf goby fish. Males of that species reach 8.6 millimetres
and females 8.9 millimetres. The Stout infantfish, a wormlike thread
with comparatively big eyes but no teeth or scales has only been found
near one island off Australia's east coast. I still can't figure out
how those scientists found them. Do they get into the water wearing
Dead Speaks Through Talking Tombstone
The dead could soon be speaking from the grave if an American inventor's
plan becomes reality. Robert Barrows, of Burlingame, California has
filed a patent application for a video-equipped tombstone that will
display a video message from grave's occupant. The hollow, talking
tombstone will include a flat touch screen and will house a computer
with a microchip memory or hard disc. It will be powered by electricity
from the cemetery's lighting system. Now imagine yourself in a lonely
cemetery with all those dead men talking. It'll make any old man to
have a heart-attack.
Nowadays sky-scrapers and big buildings are clad in glass-panels,
looking aesthetic, shimmering in the light and reflecting the landscape
in pleasing ways. But thanks to a new technology called PV-TV, those
glass-panels can do more than that. Developed by Tokyo-based MSK Corporation,
this amorphous silicon technology has a "three-on-one" functionality:
it is able to act as a glazing element, solar panel, and video display
screen. As an external glaze, PV-TV allows up to 10% visible light
to be transmitted through the panel. This level of light transmission
is optimal to allow sufficient light in cloudy conditions while protecting
against excessive solar gain and ultraviolet rays. As a solar photovoltaic
(PV) panel, PV-TV can generate 3.8 watts of electricity per square
foot, an above-average level of efficiency. But PV-TV's most unusual
feature is its ability to act as a full-colour internal and external
screen. A picture or advertisement projected from inside a structure
can be seen within that building, with PV-TV acting as a regular display
screen. On the outside of the building, the material can function
as a giant billboard. Using this can enable us to cut down load-shedding,
as buildings will produce its own electricity. Though our country
has power shortage, all the time shopping malls are gleaming with
excessive lights, where people are suffering from load-shedding.
'changes sex of fish'
A third of male fish in British rivers are in the process of changing
sex due to pollution in human sewage, research by the Environment
Agency suggests. A survey of 1,500 fish at 50 river sites found more
than a third of males displayed female characteristics. Hormones in
the sewage, including those produced by the female contraceptive pill,
are thought to be the main cause. The agency says the problem could
damage fish populations by reducing their ability to reproduce. It
said its study highlighted the need for water companies to develop
new treatments. There has been concern for some time that chemicals,
known as endocrine disruptors, are causing fish to change sex. Looks
like pollution causes many problems, including biological changes.
Living in a gas chamber like Dhaka, who can guarantee that after waking
up one morning, you won't find yourself in the opposite sex? We have
to give some serious thought about it.
=> The longest cells in the human body are the motor neurons. They
can be up to 4.5 feet (1.37 meters) long and run from the lower spinal
cord to the big toe.
=> The blue whale can produce sounds up to 188 decibels. This is
the loudest sound produced by a living animal and has been detected
as far away as 530 miles.
=> It takes approximately 12 hours for food to entirely digest.
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