Saturday, 14 November 2015

Growing human organs


...Science fiction has come to live... read more...
Scientist are growing human tissue and organ inside of animals for study and the possibility of creating donor parts that can be harvested from the animals. Nevada a farm contains a "flock of about 50 smelly sheep, many of them possessing partially human livers, hearts, brains and other organs."
Doctors have transplanted lab-grown tear ducts and an artery into patients. He has made an artificial nose he expects to transplant later this year in a man who lost his nose to skin cancer. Scientists would grow the structures needed for artery bypass procedures instead of taking a vein from another part the body. Researchers have been able to grow and implant three kinds of parts: flat tissues like skin, tubular structures like blood vessels, and hollow organs like stomachs and bladders. A lab-made ear scaffold would be far easier than the multiple procedures often necessary to carve an ear from their ribs. There are explosion of possibilities in regenerative medicine without requiring the controversial practice of extracting stem cells from embryos.
The next frontier includes solid organs, such as hearts, livers and kidneys. These structures are particularly complicated to build because they contain many different kinds of cell types and they require lots of blood vessels to carry fluids in and out.
Drugs have been developed to prevent the body from rejecting transplanted organs. One hope is to make donor organs obsolete, or at least far less necessary, eliminating long waiting lists for transplants. By using a patient's own cells, the new wave of regenerative medicine also circumvents ethical arguments and reduces the chance that recipients will reject their new parts.
... the day is not far when human body could be grown outside of the womb...

Air


...It is here but you cannot see it... guess what?...Air
Air is the Earth's atmosphere. Air around us is a mixture of many gases and dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. It has no color or smell. It has mass and weight. It is a matter as it has mass and weight. Air creates atmosphere pressure. There is no air in the vacuum and cosmos. Air is a mixture of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. There is an average of about 1% water vapor. Animals need the oxygen in the air to live. In the human body, the lungs give oxygen to the blood, and give back carbon dioxide to the air. Plants need the carbon dioxide in the air to live. They give off oxygen that humans can breathe again. Wind is moving air. Air can be polluted by some gases (such as ozone and carbon monoxide), smoke, and ash. This pollution is one of the reasons for global warming, by causing the "greenhouse effect".
Other uses of air are as follows:
Aircraft use propellers to move air over a wing, which allows them to fly.
To fill air in balloons, tyres, cushions, inflatable toys
to dry washed clothes
To suck in dust in vacuum cleaner
to blow air
In wind mill
To cool hot objects
To burn fuel
to form bubbles
in piston
This invisible friend is always with me...

Friday, 13 November 2015

Car


...As a child I liked to play with toy cars...
A car is a wheeled, self-powered motor vehicle used for transportation. Cars are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods. Cars are equipped with controls used for driving, parking, passenger comfort and safety and controlling a variety of lights. Cars are propelled by an internal combustion engine, fueled by deflagration of gasoline (petrol) or diesel. Fully autonomous vehicles, also known as driverless cars, already exist in prototype.
Features of latest car:
Automatic seat temperature control
Tablet-style center stack control interface
Foot-operated, touchless liftgate
Safety Alert Seat
Tire pressure alert system
EZ Flex seating system
Back-up collision intervention system
Center side airbag for front occupants
Side airbags
Passenger-side mirror-mounted blind-spot camera
rear reversing cameras
air conditioning
GPS navigation systems
in car entertainment
Rear-seat DVD player
Adaptive cruise control
Forward collision avoidance system
Autonomous braking
Anti-lock brakes (ABS)
Adaptive headlights
Backup camera
Reverse backup sensors
Sideview assist
Parking assist
Remote keyless entry
OnStar System
Electronic stability/skid-control system
Telescoping steering wheel/adjustable pedals
Center console with power outlet
...truly a technological miracle...

Pen Drive


...Guess what I have in my key chain? ... well a pen drive...
A USB flash drive, also known as pen drive is a data storage device that includes flash memory with an integrated Universal Serial Bus (USB) interface. USB flash drives are typically removable and rewritable, and physically much smaller than an optical disc. Most weigh less than 30 grams. Drives of up to 512 gigabytes (GB) are available. Storage capacities as large as 2 TB are planned. Some allow up to 100,000 write/erase cycles. USB flash drives are often used for storage, data back-up and transfer of computer files. They are smaller, faster, have thousands of times more capacity. They are durable and reliable because they have no moving parts. They are immune to electromagnetic interference, and are unharmed by surface scratch. USB flash drives use the USB mass storage standard, supported natively by modern operating systems such as Windows, Linux, OS X and other Unix-like systems, as well as many BIOS boot ROMs. USB drives with USB 2.0 support can store more data and transfer faster than much larger optical disc drives like CD-RW or DVD-RW drives and can be read by many other systems such as the Xbox 360, PlayStation 3, DVD players and in a number of handheld devices such as smartphones and tablet computers, though the electronically similar SD card is better suited for those devices.
A flash drive consists of a small printed circuit board carrying the circuit elements and a USB connector, insulated electrically and protected inside a plastic , metal, or rubberized case which can be carried in a pocket or on a key chain, for example. The USB connector may be protected by a removable cap or by retracting into the body of the drive, although it is not likely to be damaged if unprotected. USB flash drives draw power from the computer via the USB connection. Some devices combine the functionality of a digital audio player with USB flash storage; they require a battery only when used to play music.
The uses of pendrive are as follows:
Personal data transport, Secure srorage of data, application and software files, Computer forensics and law enforcement, Updating motherboard firmware, Booting operating systems, Operating system installation, Backup, Audio players, Security Systems.
...The futuristic is that the trend would be pencil drive, refill drive and then dot drive...