LEEVENSPARK

An ancient iron pillar in Delhi which seems to be rust proof.The Iron Pillar located in Delhi, India, is a 7 m (23 ft) column in the Qutb - minar complex, notable for the rust-resistant composition of the metals used in its construction. The pillar has attracted the attention of archaeologists and metallurgists as it has withstood corrosion for the last 1600 years, despite ha rsh weather and has been called "a testament to the skill of ancient Indian blacksmiths" because of its high resistance to corrosion. The iron pillar is one of the world's foremost metallurgical curiosities. The pillar, almost seven metres high and weighing more than six tonnes, was erected by Chandragupta II Vikramaditya (375–414 CE)

Standards governing the design of fire pumps are updated every few years. This is done to ensure that these address the new design challenges and overcome the shortcomings of previous designs. In this light it would be quite interesting to look back over the last 10 years and gauge the important changes that have happened in these standards. A close analysis will reveal that the designs have significantly evolved for the better; these now ensure superior performance and safety. Here we will look back and see some of the major changes in the standard of fire pumps and their resulting benefits. 1. Torsion analysis for right angle gear drives For vertical shaft pumps that are right angle gear driven, a torsion analysis is mandatory. This helps to identify and eliminate any damaging stresses or liner resonant frequencies created from the operating speed range of the rotating equipment. This will help avoid any potential damage to the pump equipment. 2. The right diese

Recently, one human rights advocate recorded allegation of doctors eating dead fetus after performing abortions at Shenzhen hospitals. To confirm the allegation, an undercover reporter from Eastern Express visited a state owned health center for women and children and asked a female doctor for a fetus. The doctor said that the hospital was out of stock but reminded the reporter to come back. When  the reporter went back to the hospital, the doctor offered ten fetuses for free. In another state-run hospital in Shenzhen, a nurse said that fetuses were in short supply and the price could go up from $10 to $20. In another clinic, one doctor offered the reporter a full-term fetus and recommended that it had the best healing ingredients. The disturbing human rights abuse comes from a distorted view of unborn children in Chinese culture. Traditionally, ancient Chinese considered ingestion of firstborns, aborted fetuses and placentas as part of a mother’s flesh. An unborn child has no perso

 The principal of a Magnet train is that floats on a magnetic field and is propelled by a linear induction motor. They follow guidance tracks with magnets. These trains are often refered to as Magnetically Levitated trains which is abbreviated to MagLev. Although maglevs don't use steel wheel on steel rail usually associated with trains, the dictionary definition of a train is a long line of vehicles travelling in the same direction - it is a train. HOW IT WORKS: A maglev train floats about 10mm above the guidway on a magnetic field. It is propelled by the guidway itself rather than an onboard engine by changing magnetic fields (see right). Once the train is pulled into the next section the magnetism switches so that the train is pulled on again. The Electro-magnets run the length of the guideway. ADVANTAGES: Well it sounds high-tech, a floating train, they do offer certain benefits over conventional steel rail on steel wheel railways. The primary advantage is mainta

Scientists have created the smallest petrol engine in the world ( less than a centimeter long not even half an inch ), small enough to power a watch or any small gadget. The mini-motor, which runs for two years on a single squirt of lighter fuel, is set to revolutionize world technology. It generates 700 times more energy than a conventional battery. It could be used to operate laptops and mobile phones for months doing away with the need for charging. Experts believe it could be phasing out batteries in such items within just six years. The engine, minute enough to be balanced on a fingertip, has been produced by engineers at the University of Birmingham.

This type of power screw is used for high  speed high efficiency applications, and is  becoming more common. It has become  popular because it is essential in CNC, as well as robots and aircraft actuators. The ball screw assembly is as shown below and includes a circular shaped groove cut in a helix on the shaft. The ball nut also includes an internal circular shaped groove which matches the shaft groove. The nut is retained in position on the shaft by balls moving within the groove. When the nut rotates relative to the shaft the balls move in one direction along the groove supporting any axial load. When the balls reach one end of the nut they are directed back to the other end via ball guides. The balls are therefore being continuously recirculated. The recirculated ball screw has the following advantages and disadvantages to the conventional threaded power screws:  Advantages: 1.High Efficiency - Over 90% 2.Predictable life expectancy 3.Precise and repeatable mo

Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force. It is revealed, for example, in the floating of some objects on the surface of water, even though they are denser than water, and in the ability of some insects (e.g. water striders) to run on the water surface. This property is caused by cohesion of similar molecules,  and is responsible for many of the behaviors of liquids. Surface tension has the dimension of force per unit length, or of energy per unit area. The two are equivalent—but when referring to energy per unit of area, people use the term surface energy—which is a more general term in the sense that it applies also to solids and not just liquids.The cohesive forces among liquid molecules are responsible for the phenomenon of surface tension. In the bulk of the liquid, each molecule is pulled equally in every direction by neighboring liquid molecules, resulting in a net force of zero.

Thanks to gyros, accelero meters  and sophisticated control  mechanisms, remaining upright on  a two-wheeled vehicle is no longer  quite the balancing act it might  once have been, even when at a  standstill. Visions of future mobility  like Honda's U3-X take such ideas  in whole new directions, quite  literally, by including multi- directional capabilities, and  concepts such as Supple go even  further still by ditching wheels  altogether in favor of balls. It's this  freedom of movement that inspired  a group of students from the  Charles W Davidson College Of  Engineering at San Jose State  University to begin work on the  ambitious Spherical Drive System  (SDS) electric motorcycle. The SDS concept vehicle is described as a self-balancing electric motorcycle that rides on spheres. Rather than using the kind of mechanical gyros that help keep the Gyrobike or the C-1 from Lit Motors in an upright position, the SDS creation uses data from MEMS gyroscopic sensor technol

Next week Audi will debut their prototype Wörthersee e-bike, which promises to be a highly advanced, versatile electric bike from the German automakers. The Audi e-bike will be unveiled at Wörthersee in Carinthia, Austria where trial biker Julien Dupont and downhill specialist Petra Bernhard will demonstrate their stunts and streetbike skills. “As a high-performance e-bike for sports and trick cyc ling, it features the Audi core competences of design, ultra, e-tron and connect,” stated Audi’s Head of Design Wolfgang Egger. weighs 24 pounds and features a compact frame made of carbon fiber-reinforced polymer with a low center of gravity to make it superbly agile. The same carbon fiber-reinforced polymer is also used for the 26″ wheels which feature an innovative “Audi ultra blade” design with broad flat spokes for an optimized transmission of pedal power. The 2.3 kW electric motor sends up to 184 lb-ft. of torque to the rear wheel and uses a lithium-ion battery that only need

Mechanical engineering is a discipline of engineering that applies the principles of physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the production and usage of heat and mechanical power for the design, production, and operation of machine s and tools. It is one of the oldest and broadest engineering disciplines. The engineering field requires an understanding of core concepts including mechanics, kinematics, thermodynamics, materials science, and structural analysis. Mechanical engineers use these core principles along with tools like computer-aided engineering and product lifecycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, aircraft, watercraft, robotics, medical devices and more. Mechanical engineering emerged as a field during the industrial revolution in Europe in the 1

Awesome work done by mechanical engineers.The Real Grass-roots Innovation by Indian wins Best Product Design!This winning product was made at a minuscule cost of Rs. 300 and has potential to affect lives of millions of people across the globe.  Project Goal:“Load carrier for labor” project aims to improve the working condition of laborers and wo rkers at many places globally like construction site, factories, ports, railway stations, etc.Objective:  The objective is to prevent various occupational hazards and demonstrating Product design and ergonomic consideration in welfare of human life.This is called Real Engineering..

maximum mechanical engineers and the mechanical students are having the innovative thinking and has an extraordinary talent to prove themselves in any kind of fields that they are well interested   What it takes to be a Mechanical Engineering?What it takes to be a Mech. Engg.?We entered the college with lot of dreams,With the first day, came the first shock: NO GIRLS.With this we started the great journey.First half of first year passed getting acquainted;Getting out of school mentality, exploring the campus;Second half entangled in daughters, t-squares, set square, sheets;Eventually ended  by rewriting the drawing rules.Third was the semester of great transformation;Mastering the art of copying assignments,Getting famous for infamous acts;No matter lost only few marks.Then came the fourth semester,The of tech fests, seminars;We were the hearth of all the events;And were rated best till date.Fire began from fifth semester;Suddenly the class was rated the worst ever,And rebels

According to Robert Zubrin who was a NASA scientist working for a past 10 years on going to mars.who wrote more number of books on mars saying about the survival, conditions, and more books like the "MARS a road trip" There is a chance of settling over MARS and its also one of the best place to spread the life of human kind just like EARTH. It is having all kinds of resources like water, hydrogen, nitrogen, carbon dioxide and other more gases that are required to the survival to the human kind and other living organisms or the species. After earth i feel that mars is the safe zone for the better civilization in our solar system. With the help of R.Zubrin views and the equipment which was designed for the production of the rocket fuel to the space vehicles from the atmosphere of Martin for the re-journey to the earth and with the success journey towards mars more other countries joins this mission to develop the atmospheric conditions of mars. With this another best

Fans cried out, and BioWare listened. Today, the company announced Mass Effect 3: Extended Cut, a free download that will offer gamers "deeper insights into how their personal journey concludes." The Mass Effect 3: Extended Cut arrives this summer. Due out this summer for the Xbox 360, PlayStation 3, and PC, the Extended Cut for the sci-fi role-playing game will expand on the end-game with "cinematic sequences and epilogue scenes." Specifics were not mentioned. BioWare cofounder Ray Muzyka said, "With the Mass Effect 3: Extended Cut we think we have struck a good balance in delivering the answers players are looking for while maintaining the team's artistic vision for the end of this story arc in the Mass Effect universe." According to Mass Effect 3 executive producer Casey Hudson, post-launch development initiatives for Mass Effect 3 have been "reprioritized" as a result of the Mass Effect 3: Extended Cut. Gamers have until April 12, 2014 to

Also known as N’Haatik, or the Demon of the Lake, the legend of Ogopogo first appeared in Native American folklore. Ogopogo makes his (or her) home in Okanagan Lake in British Columbia, Canada. As with most cryptids, its home territory makes it extremely difficult to find. The lake itself is large and deep, nearly 84 miles long and 860 feet at its deepest point. The Canada's British Columbia tourism website, whose motto just happens to be "Super,  Natural" claims there are, on average, six Ogopogo sightings each year. If you're one of the lucky few to glimpse the famous monster, it's said to resemble a cross between a giant snake with the head of a goat or horse. Or, if you're a dinosaur buff, some say Ogopogo resembles a plesiosaur. Despite its "monstrous" reputation, Ogopogo has quite the following of beloved fans. The city of Kelowna has commemorated the creature in everything from art to parade floats. Above, Ogopogo is pictured sellin

Whether you call it Bigfoot, Sasquatch or Yeti, this ape-like cryptid has eluded science since -- well, since science began trying to confirm its existence. As with most cryptids, the legend goes back centuries to native populations who told stories of large, ape-like creatures wandering the woods. For primatologists such as the very famous Dr. Jane Goodall, these accounts are proof enough. But scientific belief in Bigfoot has suffered from notable hoaxes, from fake casts of giant feet to doctored videos. Most recently, in 2008, the "body" of a supposed Sasquatch was found to be nothing more than faux fur and rubber feet. If Bigfoot does exist, sightings suggest that the creature would weigh several hundred pounds and be between 6 feet and 10 feet tall. And, regardless of whether or not this cryptid exists, there's no denying the loyal following, fan base and flat-out believers who have devoted their lives and research to Bigfoot.

Image: Illustration of the legendary yeti creature. (Credit: Philippe Semeria/Wikimedia Commons). A blackened, curled, oversized finger, long claimed to belong to a yeti, has been identified as human after all. Featuring  a long nail, the mummified relic  -- 3.5 inches long and almost an inch thick at its widest part -- has languished for decades in the Royal College of Surgeons' Hunterian Museum in London. The specimen caught the interest of scientists in 2008, when curators cataloged a collection bequeathed to the museum by primatologist William Charles Osman Hill. Among Hill's assemblage of items relating to his interest in cryptozoology (the study of animals not proved to exist), there was a box labeled simply the "Yeti's finger." NEWS: New Bigfoot Sightings: Proof Still Lacking The notes in the box revealed that the digit was taken from the hand of a yeti in the Pangboche temple in Nepal by mountain climber Peter Byrne. "Mr Byrne is now 85, and living i

  Here is something new that we haven’t seen before, a concept phone which is completely transparent and see through. This concept phone by BloodRabbit which he thought of while driving home from work. This mobile phone comes in a see-through body and a basic LCD display, sharing the same dimensions as a credit card. Although you’re probably scratching your head and wondering how the electronics and other stuff like a battery and camera fits in. we have to go by the assumption that technology in the future will be able to compress electronics to such a size.

If u lose your mobile..............?? This is how it works!!!!!! 1. Dial *#06# from your mobile. 2.  Your mobile shows a unique 15 digit. 3. Note down this no anywhere but except your mobile as this is the no which will help trace your mobile in case of a theft. 4. Once stolen you just have to mail this 15 digit IMEI no. to cop@vsnl.net 5. No need to go to police. 6. Your Mobile will be traced within next 24 hrs via a complex system of GPRS and internet. 7. You will find where your hand set is being operated even in case your no is being changed. PASS ON THIS VERY IMP MESSAGE TO ALL YOUR FRIENDS AND RELATIVES. If u lost your mobile, send an e-mail to cop@vsnl.net With the following info Your name: Address: Phone model: Make: Last used No.: E-mail for communication: Missed date: IMEI No.: Keep all these information stored for emergency use.. #if we lost mobile........ POSTED BY JITHIN KRISHNA B.tech [Mechanical]

An affordable Android, but fails to impress. Dual-SIM functionality; Well-priced. Ruins the Android experience; Lacklustre display; Dismal multimedia performance; Camera not up to the mark. MRP:  Rs 9,000 Street Price (As On 9-Jan-2011):  Rs 7600 ( Saholic.com ;  Koovs.com ;  Infibeam.com ) Spice's latest mass-market smartphone runs  Android 2.3  ( Gingerbread ) out of the box. On paper, it almost matches many mid-range droids. On top of that, its dual-SIM (GSM) functionality adds more value to this device. Design And Build Quality The retail package comes with the phone, charger, USB cable, and earphones. The device measures 4.6" (l) x 2.4" (w) x 0.6" (d) and weighs 136 grammes. It has mediocre looks, which is acceptable at this price point. The Mi 350's front and battery cover is made of metal, but it doesn't feel premium at all. Finally, although the device isn't a looker, the build quality is good. The phone's 3.5" screen has pixel dimensi