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Saturday, September 5, 2015

Turn out the human sperm have a tiny harpoon on its head

Human sperm has a structure that similar harpoon in its head. It was revealed by a 14-year study recently published in the September 2015 edition of the Andrology journal.

"The findings really impress us," said John Herr, a reproduction researcher of the Department of Cell Biology, University of Virginia.
Virginia researchers found a protein within the head of the sperm forms spiky filaments (pictured), which they believe may lash together the sperm and its target. (Picture from: http://dailym.ai/1JM73jo)
Scientists have known for a protein called 'SLLP 1' at the head of the sperm. In the study, scientists revealed that the protein was able to form filaments.
The SLLP1 filament viewed along its cross section. This protein is a member of a family of proteins now known to reside inside the acrosome. (Picture from: http://dailym.ai/1JM73jo)
Herr reveal that the filaments are so thin that play a role in fertilization, helping the sperm merge with the egg.
A protein known as Sperm Lysozyme-Like Protein 1 (SLLP1) works like a harpoon allowing the sperm cell to latch onto and fertilize the egg. (Picture from: http://bit.ly/1XdVbRb)
"One of the main proteins are abundant in the sperm acrosome (head) crystallized into filaments, and we now theorize that it plays a role in the penetration of the egg," said Herr.

To find out, scientists "capture" proteins in a static condition. The protein crystals and then cooled to prevent degradation. By the X-ray, scientists reveal that the filaments was cylindrical with a hole in the middle.

This finding gives a new understanding of the fertilization process that filament protein turned out to be very small role in the big things, the creation of a baby. *** [EKA | FROM VARIOUS SOURCES | DAILYMAIL | TECHTIMES]
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Hopeless.........

Lying After Rejection 
I lay there, stretched across time,
My body heavy with surrender.
Lethargy wrapped around my breath,
Helplessness settling deep in bone.
 
Weak—
Unclaimed.
Unworthy.
A body gone slack,
A pulse barely remembering life.

I kept falling,
Not through space, but through meaning.
Words deserted me.
Dignity dissolved.
Hope died quietly,
And grief finished what it began.

This mortal shell
Held only sorrow.
Joy had long departed,
Leaving wounds
Where the soul once learned to sing.

Still, I asked the dark:
Is there a speck of love
Strong enough to undo disaster,
To lift each torment from my chest,
To cleanse the weight of every sin?

Yet in the end,
I was still lying there—
Breathing, waiting,
Foolish enough to believe
That perfection might arrive
And find me first.

(This poem was written in the quiet aftermath of rejection—when failure felt heavier than it should, and silence spoke louder than reason.)

Friday, September 4, 2015

New Most Valuable Aston Martin Car

A one-off Aston Martin DB4GT with a one-off body by Bertone sold for £3,249,500 including fees ($4.889 million or €3.8 million) has become the most valuable Aston Martin ever sold. It went for £649,500 more than the James Bond DB5 used in the 007's movies such as "Goldfinger" and "Thunderball" that sold in 2010 for £2.6 million, the equivalent of $4.6 million at the time.
Bertone Aston Martin DB4GT was displayed at the 1961 auto shows in Geneva and Turin. (Picture from: http://bit.ly/1O3LU89)
The car was the last DB4GT completed by Aston Martin and one of 30 left-hand drive cars made. It was shipped to Bertone for the special body and displayed at Bertone's stand at the Geneva Motor Show in 1961. It was one of the earliest works by Giorgetto Giugiaro who was 22 at the time and later created important cars like the original Volkswagen Golf and BMW M1.

The DB4GT was the competition version of the DB4 with removed rear seats, thinner aluminum bodywork and a 5in shorter wheelbase. The changes reduced the weight by 200 lbs. Power got an upgrade with triple Weber carburetors and two spark plugs per cylinder to increase power from 240 hp in the standard version to 302 hp in the GT.
The Bertone Jet was a one-off car based on the last Aston Martin DB4GT. (Picture from: http://bit.ly/1O3LU89)
The one-off Bertone body was known as the Jet and was meant to blend performance and style. It was not has light as the Zagato-bodied cars but had more luxury extras. The aluminum body was replaced with Giugiaro's creation in steel.
Bertone Aston Martin DB4GT was among the first cars designed by Giorgetto Giugiaro. (Picture from: http://bit.ly/1O3LU89)
Unfortunately, the Jet appeared in Geneva the same year as the Jaguar E-Type, which stole all the headlines that year. 
Giugiaro was just 22 when he designed the Bertone Aston Martin DB4GT. (Picture from: http://bit.ly/1O3LU89)
The car lived most of its life in the US after Bertone sold it, but the then-acting Aston Martin Chairman Victor Gauntlett bought the car in the 80s and restored it at the factory. The car was sold mid-restoration, but the new owner was able to track down the necessary parts and get the car back on the road in 1988.
Since its restoration, the Jet has toured the world to win Best in Show and Best in Class awards at many concours d'elegance, including Pebble Beach in 1989 and Villa d'Este in 2001. It has also been driven extensively for a car of its rarity. Since 1988, the owner put 35,000 miles on the car. *** [EKA | FROM VARIOUS SOURCES | AUTOEVOLUTION]
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Chilli Island, an electric-powered private island

The most expensive tropical island is currently listed at Sotheby's International Realty is a sandy island in French Polynesia called Motu Matatahi. Lies about an hour by boat from the Bora Bora airport, and valued US $270,000.

Want cheaper, here it is Chilli Island, a motorized floating seat enough for two people costs only US $14,800. And unlike Motu Matatahi, Chilli Island have a drink and there is stereo.
Chilli Island, a motorized floating seat enough for two people. (Picture from: http://dailym.ai/1fGWpm1)
As reported by BBC Auto, the vehicle was originally designed as water toys for the beach resort, Chilli Island produced in Austria, offers a pair of padded seats a permanent state of recline.
Chilli Island produced in Austria, offers a pair of padded seats a permanent state of recline. (Picture from: http://dailym.ai/1fGWpm1)
The structure, about 8 feet long, made of a combination of polyethylene and fiberglass weighs about 440 lbs. Buyers can choose one of the two electric motors Torqeedo: 1kw open version or 0.5 kw children's pool, both of which offer operating time of about 6 hours for a single battery charge.
To control is quite simple: A lever to change the direction and switch buttons to speed. A small the liquid crystal screen will displays the battery indicator, speed, and position of the motor. *** [EKA | FROM VARIOUS SOURCES | BBC AUTO]
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The new material could be instantly heal a spacecraft

Apparently, there is no place more no friendly environment like space. There are hundreds of foreign objects moving in a speed of 13,000 km/h with the size and mass were also not small. If hit, the impact really unimaginable.

NASA's International Space Station (ISS) was recorded as a spacecraft with the most robust protective system ever created. With the sophisticated protective and impressive maneuvering systems, ISS is able to withstand the blow of many celestial objects that threaten.
Photos from the International Space Station (ISS) while in its orbit above the Caspian Sea. (Picture from:. (Picture from: http://bit.ly/1NUsrZP)
ISS itself is equipped with a device called a "bumper", in which an object or space debris that slid closer will be "burned" so before touching the surface of the station, after they had been in the form of steam.

If the bumper is not functioning and the protective wall of the station is damaged, the air will be issued to provide a backup supply of oxygen for the astronaut in it, at least enough until the technicians repair those damages.

Surely nobody wants that possibility happen. Therefore, Timothy F. Scott of the American Chemical Society, and colleagues sought to create a defense tool that can be used as a backup defense device.
The material hardens once it interacts with oxygen. (Picture from: http://bit.ly/1EyeFdj)
Now, they are creating a protective wall for the ISS, consisting of a dense layer of polymer. Between the two layers of the polymer, there is a layer of charged liquid reactive substances that are useful to hold and reflect the hit power. Reactive fluid in the lining will react rapidly with oxygen, forming a resilient layer to prevent damage caused by the collision of celestial bodies.

The material is an almost liquid resin that hardens as soon as it's exposed to the slightest bit of oxygen. In order for it to work, the resin has to be sandwiched between two walls; should the walls be punctured — by, say, a bullet or debris in space — the resin will immediately react with the incoming oxygen and plug the gap..
The findings of Scott and other ACS scientists published in the journal ACS Macro Letters on the edition of Wednesday, August 26, 2015. *** [EKA | FROM VARIOUS SOURCES | FORTUNE | TIME | EUREKALERT!]
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Thursday, September 3, 2015

Another 10 Forgotten Supercars (Part-1)

While many dream of creating the next iconic supercar, few actually break through to compete with the industry's legends. Ferrari, Lamborghini, Pagani, and Koenigsegg have shown that it's possible to emerge from the unknown and rival the established giants, but they are rare success stories. For every brand that makes it, countless others fall short, lost to challenges in marketing, engineering, or heritage.

Beyond the big names, there's a long list of ambitious supercars that never quite reached the finish line. Some of these models might ring a bell, but others are likely unfamiliar. Either way, each of them carries a story that reflects the difficulty and allure of the supercar dream.

10. Cizeta V16T
The Cizeta V16T remains one of the most extreme examples of supercar engineering, owing to its incredibly ambitious 5,995 cc 16-cylinder engine, uniquely mounted transversely. This design choice was as bold as it was challenging, resulting in a remarkably wide stance to accommodate eight cylinders across the engine bay. With an impressive 560 bhp produced at a staggering 8,000 rpm, the V16T’s engine was equipped with 64 valves, producing a sound that left a lasting impression on anyone who heard it.
1994 Cizeta V16T. (Picture from: PistonHeads)
The car was rumored to achieve a top speed of 204 mph, although this was never officially verified, leaving its true potential a matter of speculation. The V16T debuted as a prototype in 1989, capturing attention with its outlandish design and ambitious engineering, yet production did not begin until 1992. During this period, Giorgio Moroder, the car’s primary financier, departed from the project, leading to additional challenges. Despite its groundbreaking design, the Cizeta V16T saw limited production and ultimately ceased quietly in 1995, becoming a rare and intriguing chapter in supercar history.

9. Jimenez Novia W16
Another ambitious creation was the Jimenez Novia W16, a supercar unlike any other, powered by an unusual configuration of four motorcycle engines arranged in a W shape. This innovative design featured four banks of four cylinders, each connected to a shared crankshaft and topped with Yamaha FZR1000 heads. The result was a compact but powerful 4-liter engine capable of delivering 550 bhp, which at the time was an impressive feat for a supercar built in such a unique manner.
1995 Jimenez Novia W16. (Picture from: BeforItNews)
With five-valve cylinder heads enhancing airflow and combustion efficiency, the Novia was theoretically able to achieve speeds of up to 217 mph, making it one of the most exciting prototypes of its time. Despite its potential, the Novia never reached full production, and even a planned off-road variant featuring the W16 engine remained just a concept on the drawing board.

8. Jiotto Caspita
The Jiotto Caspita, unveiled in 1989, was a groundbreaking concept that promised a supercar experience unlike any other. Designed to function as both a high-performance race car and a road-going vehicle, the Caspita captured the imagination of car enthusiasts with the idea of driving it to the racetrack, competing, and then comfortably driving it back home. Originally, it was powered by a formidable Formula One V12 engine, providing an authentic race-car feel and performance.
1989 Jiotto Caspita. (Picture from: TopCarRating)
In 1990, however, the Caspita transitioned to an equally impressive Judd V10 engine, which brought improved reliability and slightly more manageable power delivery while still maintaining a top speed of over 200 mph. Despite its thrilling potential and innovative approach, no customer-ready versions of the Caspita were ever produced, leaving it as a rare and intriguing concept that never fully reached the roads.

7. Laraki Fulgura
Morocco’s Laraki Fulgura was another ambitious entry into the supercar world, making its debut at the 2002 Geneva Motor Show with hopes of establishing a North African presence among European automotive giants. Each year, Laraki updated and refined the Fulgura’s design, showcasing new developments and stylistic changes until the project ultimately concluded in 2005. Initially intended to rival high-performance icons like the Lamborghini Murciélago, the Fulgura began as a near replica of the Ferrari 360, drawing inspiration from its sleek lines and aggressive stance.
2005 Laraki Fulgura. (Picture from: TopCarRating)
However, it set itself apart with a powerful 6-liter Mercedes-sourced V12 engine enhanced by four turbochargers, producing a formidable 680 bhp. With this impressive setup, the Fulgura was advertised to reach a top speed of 219 mph, placing it in elite company. Yet, despite its specifications and bold design, the Fulgura’s steep €500,000 price tag proved a significant obstacle, limiting its appeal and preventing it from finding a sustainable market.

6. MCA Centenaire
The MCA Centenaire, launched in 1992, was another ambitious supercar entry, although its somewhat awkward, kit-car-like appearance gave it a polarizing reception. Styled by the Italian design firm Castagna, the Centenaire featured an impressive mid-mounted Lamborghini V12 engine, an unusual choice that hinted at serious performance capabilities. With a steep price tag of $500,000, MCA clearly positioned the Centenaire as an elite model, yet its market success was hindered by various factors.
1990 MCA Centenaire. (Picture from: http://bit.ly/1KowYUO)
During its debut in Monaco, potential buyers were not permitted to test drive the car, which only added to the air of mystery surrounding the vehicle’s true capabilities. Allegedly, six units of the Centenaire were produced, and the car even made an ambitious attempt to qualify for the prestigious Le Mans race in 1993; however, the effort met with poor results, casting doubts on the car's engineering and reliability. Eventually, the project was purchased by Aixam-Mega, a manufacturer better known for microcars, who rebranded it as the Monte Carlo. Unfortunately, even with the rebranding, sales proved elusive, and the Centenaire drifted into automotive obscurity.

These unique supercars reflect the challenging journey that most car makers face when attempting to reach automotive stardom. Each of them represents a brave step into the world of high-performance cars, and even if they didn’t achieve fame, they remain important parts of supercar history, filled with passion and innovation. (Jump to next section.) *** [EKA [03092015] | FROM VARIOUS SOURCES | PISTONHEADS | BEFOREITNEWS | TOPCARRATING | ULTIMATECARPAGE ]
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