• First download the WebShare Lite App from Google Play store and install it on your android phone.       (Download Here)
• After downloading and installing , Run the application 
• Click 'START' to start it's service on your Android mobile.
• Make a note of  'URL and Password' which is been displayed on the App screen. 

• Now, we need to open a web browser from PC and enter the URL into it and then the password in the provided field.
• Now, we will get a screen like the one displayed below. 

• Finally, enjoy the transfer of data easily and instantly!!

• If you are a Highway man and passionate for your biking, skiing or snowboarding and loves music. Then Helmets might have always been disappointed you.
• Here is a new system special designed for you so that you could add boost to your fun while riding.

• Well most of you are already thinking about headphones and internal helmets speakers, but actually it is not. Headway is using a bit different, more comfortable and convenient principle which ever had been used for this.

• And the coolest thing of headway device is its completeness It can be tweaked to  any helmet with its a solid shell, and this expands its  usability , as motorcycle riders, snowboarders, skateboarders and so on.
• Now , I really don’t want you to wait more.Headway is a new device that turns a helmet in to a wearable speakerAlthough it has the same effect of a speaker with high bass quality .
• Now let me tell you that,the sound is actually transmitted by vibrations through the use of surface transduction.

• Now, using material resonance for conveying acoustic signals is not new, with speakerless music sources such as the Terfenol-D or the Feonic Soundbug being around for quite some time now. Cool that only now someone though of blending it with the helmet technology!
• The device attaches to the helmet externally using a magnetic mechanism in combination with a secure mounting system, and turns the whole thing into a wearable speaker. Music is streamed to the system from a smartphone, and controlled using a companion app

• Headway’s CEO, Sophie Willborn explains that the device “turns the whole helmet into an acoustic resonating body with outstanding audio quality.” A music and motorbike enthusiast herself, she realized that there was nothing on the market that enabled people to comfortably listen to music whilst wearing a helmet, hence Headway was born.  “I was overwhelmed by the sound inside the helmet,” she says.

• Frustrated with having to deal with awkward headphone cables and ear buds that become easily dislodged, she went about finding a solution. One of the ideas she tried was surface transduction and it proved to be surprisingly successful. "I was overwhelmed by the sound inside the helmet," she says.

• After working with the Berlin Startup Academy, Willborn was able to develop protoypes until a final design resulted in a 3D-printed device that could communicate with a smartphone through Bluetooth “It’s like being in a sound box. The whole helmet is the acoustic resonance body so you can hear the music from everywhere around you. The best thing is, you can feel the bass. The whole helmet vibrates when you hear music with strong bass.”

• The next step for Headway is to secure funding through crowd sourcing this April.A variety of issues were tackled during the development process, including what material to use, how long the battery should last, how the device should be attached to the helmet and what features the app should have. The name of the device was also changed from Rockatoo to Headway.
• Despite these challenges, and only being at the development stage, Headway has already won several awards, including first prizes at Idea Camp and the Betahaus Festival Hardware Pitch.and if all goes to according to plan, then you can expect to see the wearable speaker later this year with a price tag of around $270
• If You all love it don't forget to share this with your friends and for any queries...? drop it down in comment section.

1. Jeff Weiner — LinkedIn

2. Paul Jacobs — Qualcomm

On the overall company list, Jacobs actually ranked fourth, but was lifted to second place in the tech realm. He nabbed a 95% rating at Qualcomm, which makes wireless telecommunications products.

“Visionary leader, great technology portfolio and offers opportunities to work on many different projects," a Qualcomm senior learning and development specialist said.

• Qualcomm Incorporated is an American global semiconductor company that designs, manufactures and markets digital wireless telecommunications products and services. 

3. Brad Smith — Intuit

Smith placed sixth overall, but third on the tech list. Intuit's CEO since 2008, his employees at the software company give him a 94% approval.

“At the very top, Brad Smith and team are well-respected and keep things moving in the right direction,” an anonymous Intuit employee said.

• Intuit Inc. is an American software company that develops financial and tax preparation software and related services for small businesses, accountants and individuals. It is incorporated in Delaware and headquartered in Mountain View, California.

4. Mark Zuckerberg — Facebook

In 2013, Zuckerberg was rated the top CEO overall, with a 99% approval rating. This year, the face of Facebook pulls in at fourth on the tech company list (ninth overall) with a 93% rating.

"Mark is an incredible leader who wants to make the world a better place, and I love doing work for a mission I care about," a Facebook analyst said.

• Facebook is an online social networking service. Facebook was founded on February 4, 2004 by Mark Zuckerberg with his college roommates and fellow Harvard University students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. Facebook now allows anyone who claims to be at least 13 years old to become a registered user of the website

5. Larry Page — Google

Page pulled in at 10th overall, but cut that in half on the tech side. Google's CEO (and co-founder) maintains a 93% approval rating. Despite the search engine's dominant global presence, Page keeps things low-key.

“Larry wants us to keep the soul of a startup, even though we no longer are one," an anonymous Google software engineer said.

• Google is an American multinational corporation specializing in Internet-related services and products. These include search, cloud computing, software, and online advertising technologies.Most of its profits are derived from AdWords.

6. Marc Benioff — Salesforce.com

Benioff wears a lot of hats at Salesforce.com. He's the cloud computing company's co-founder, chairman and CEO. He ranked 12th overall, but sixth on the tech list, with a 93% approval rating.

“Marc is the best CEO in the business — different for sure — but the best," an anonymous Salesforce employee said.

• Salesforce.com Inc. is a global cloud computing company headquartered in San Francisco, California. Though best known for its customer relationship management (CRM) product, Salesforce has also expanded into the "social enterprise arena" through acquisitions.It is currently ranked the most innovative company in America by Forbes magazine,as well as number 7 in Fortune magazine's 100 Best Companies to Work For in 2014.

7. Jerry Kennelly — Riverbed Technology

Jerry Kennelly was lucky number 13 on the full list, but lands the seventh spot on the tech list. The CEO and chairman of Riverbed, an application performance company founded in 2002, landed a 93% approval rating.

“Jerry is a fantastic CEO with tons of enthusiasm and energy. Very personable and cares greatly about his company and people. Couldn't possibly be any nicer of a human being running a $1B company on this earth,” a Riverbed technology sales employee said.

• Riverbed Technology is a technology company that specializes in improving the performance of networks and networked applications. It was founded May 23, 2002 by Jerry Kennelly and Steve McCanne in San Francisco, California where its world headquarters remains. Riverbed's main product is the Steelhead Appliance, a networking appliance that combines several techniques to optimize data traffic and bandwidth utilization across a wide area network.

8. Tim Cook — Apple

The heir to the Steve Jobs throne was 17 overall, but seized the eighth tech spot. Cook whipped up a 92% approval rating, a slight drop from last year's 93%.

“You feel like everything you do has a direct impact and you're a stakeholder," a front-end engineer said. "The VPs and CEO are not removed either. It's common to see them eating lunch on campus amongst everyone else.”

• Apple Inc. is an American multinational corporation that designs, develops, and sells consumer electronics, computer software and personal computers. Its best-known hardware products are the Mac line of computers, the iPod media player, the iPhone smartphone, and the iPad tablet computer. Its consumer software includes the OS X and iOS operating systems, the iTunes media browser, the Safari web browser, and the iLife and iWork creativity and productivity suites.

9. John Donahoe — eBay

The president and CEO of eBay since 2008, John Donahoe's actual ranking was at spot 19 in the top 50. He snagged a 91% approval and warm praise from employees.

“The CEO of the company is smart, passionate and sincere. John Donahoe is the real deal and a great leader. He may be the most approachable CEO I've ever met," an eBay director said.

• eBay Inc. is an American multinational internet consumer-to-consumer corporation. It was founded by Pierre Omidyar in 1995, and became a notable success story of the dot-com bubble; it is now a multi-billion dollar business with operations localized in over thirty countries. The company manages eBay.com, an online auction and shopping website in which people and businesses buy and sell a broad variety of goods and services worldwide.

10. Frank D’Souza — Cognizant Technology Solutions

D'Souza holds the 24th spot of the 50 highest rated CEOs, with a 90% approval. He's been the top exec at Cognizant since 2007, which, at 38, made him the youngest CEO of a billion-dollar IT company.

• Cognizant Technology Solutions Corporation is an American multinational information technology, consulting and business process outsourcing company. It is headquartered in Teaneck, New Jersey, United States, North America.
• Originally founded as an in-house technology unit of Dun & Bradstreet in 1994, with headquarters in Chennai, India, Cognizant started serving external clients in 1996. In 1997, the headquarters were moved from Chennai to Teaneck, New Jersey. Cognizant's IPO was launched in 1998, after a series of corporate splits and restructures of its parent companies, the first Indian software services firm to be listed on the Nasdaq.

Aros is a new in design,beautiful with it's looks and as well as smart with  its features . a  air conditioner that will appeal to home owners who are conscious with energy usage . This is said to be one of the most complicated product ever  built by the Quirky company and they hope that it will be able to solve the problems and issues on the window A/C unit that haunts it , since it has arrived in the 1970s and been unchanged. This is about to change the way of  air conditioning

Their are many basic definitions a mechanical engineer has to know. here  i am making an attempt to cover most of the definitions below hope you guyz love it . n suggest me with your precious comments.

Torque or Turning Force:

• Torque is the tendency of a force to rotate an object about an axis. Just as a force is a push or a pull, a torque can be thought of as a twist to an object. 
• Loosely speaking, torque is a measure of the turning force on an object
• The magnitude of torque depends on three quantities: The force applied, the length of the lever arm connecting the axis to the point of force application, and the angle between the force vector and the lever arm.

Couple:

• Two forces that are equal in magnitude but opposite in direction (and acting along parallel lines), thus creating the turning effect of a torque or moment.

Moment:

• It is one type of device which is being distorted under certain amount of load & also can also go to its original shapeafter the removal of that load.
• Its function:
• To store energy.
• To absorb energy.
• To control motion of two elements.

Specific Weight:

·       Weight per unit volume of the fluid.

Specific Volume:

·       Volume per unit mass of the fluid.

Specific Gravity:

·       It is the ratio of specific weight of required substance to specific weight of pure water at 4 degree centigrade temperature.

Specific heat:

·       The amount of heat required to increase 1 unit temperature of 1 unit mass.

Viscosity:

• The property of a fluid that resists the force tending to cause the fluid to flow. 
• A liquid's viscosity depends on the size and shape of its particles and the attractions between the particles. 
• A fluid that has no resistance to shear stress is known as an ideal fluid or inviscid fluid. 
• Zero viscosity is observed only at very low temperatures, in superfluids. Otherwise all fluids have positive viscosity. 
•  A liquid whose viscosity is less than that of water is sometimes known as a mobile liquid, while a substance with a viscosity substantially greater than water is called a viscous liquid.

Dynamic Viscosity:

• The amount of resistance of one layer of fluid over other layer of fluid.

Kinematic Viscosity:

• It is the ratio of dynamic viscosity to density.

Buoyancy:

• When a body is immersed in a liquid, it is lifted up by a force equal to weight of liquid displaced by the body. The tendency of liquid to lift up an immersed body is buoyancy. The upward thrust of liquid to lift up the body is called buoyancy force.

Bernoulli's Equation:

Where, P = pressure,V = velocity, Z = Datumn Head

Devices for fluid measurement:

Venturimeter:

• It measures discharge of fluid.

Notches :

• It measures discharge of fluid.

Orifice meter:

• It measures discharge of fluid.

Pitot tube :

• It measures velocity of fluid.

Mach Number:

• The ratio of the speed of a moving body to the speed of sound
• Mach number varies by the composition of the surrounding medium and also by local conditions, especially temperature and pressure. 

Fluid discharge/Fluid flow:

•  Quantity of fluid flowing per second.
  (through a section of pipe/ through a section of channel)
  
  
  Q=AV
  
  
  where, V= velocity of fluid,A= cross-sectional area of pipe/channel
  Note: 1m³ = 1000 L1 cusec = 1 ft³/sec1 ft = 0.3048 m

Hydraulic Machine:

• Uses kinetic energy of fluid as a working medium
• example :Turbine,Pump,Compressor etc.

Draft tube:

• It attaches with reaction turbine . Its function is to reduce energy loss from reaction turbine & it also reduce pressure at outlet which is must blow the atmospheric pressure.

Thermodynamics:

• The science concerned with the relations between heat and mechanical energy or work, and the conversion of one into the other.

Zeroth Law of Thermodynamics:

• If two body are in thermal equilibrium with a third body then these two body are also in thermal equilibrium with each other.

First Law of Thermodynamic:

• In a closed system, work deliver to the surrounding is directly proportional to the heat taken away from the surrounding.And also, In a closed system, work done on a system is directly proportional to the heat deliver to the surrounding.

Second Law of thermodynamic:

• It is impossible to make a system or an engine which can change 100 percent input energy to 100 percent output

Entropy:

• A Thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work

                            ds = dq/T 

• where, ds = change of entropy, dq = change of heat, T = Temperature.
• In adiabatic process, entropy can not change. Actually,lacking or mal-adroitness of tranfering energy of a system is entropy.

Calorific Value of fuel:

• The amount of heat produced by the complete combustion of a material or fuel. Measured in units of energy per amount of material, e.g. kJ/kg.

Boiler/Steam Generator:

• A closed vessel in which water is heated to make steam for powering turbines, supplying heat, etc.

Economiser:

• It is a part of boiler. Its function is to heat feed water which is supplied to boiler.

Superheater:

• A superheater is a device used to convert saturated steam or wet steam into dry steam used in steam engines or in processes, such as steam reforming. 
• There are three types of superheaters namely: radiant, convection, and separately fired. 
• A superheater can vary in size from a few tens of feet to several hundred feet.

Air-Preheater:

• It is a part of boiler. Its funtion is to preheats the air to be supplied to furnace and it recover heat from exhaust gas.

Boler Draught:

• It is an important term for boiler. It is the difference of pressure above and below the fire grate. This pressure difference have to maintain very carefully inside the bolier.
•  It actually maintaind the rate of steam generation. This depends on rate of fuel burning. Inside the boiler rate of fuel burning is maintained with rate of entry fresh air. 
• If proper amount of fresh air never entered into the boiler, then proper amount of fuel inside the boiler never be burnt. So, proper fresh air enters into the boiler only by maintaining boiler draught.

Nozzle:

• A nozzle is a device designed to control the direction or characteristics of a fluid flow as it exits an enclosed chamber or pipe.
•  A nozzle is often a pipe or tube of varying cross sectional area, and it can be used to direct or modify the flow of a fluid. 
• Nozzles are frequently used to control the rate of flow, speed, direction, mass, shape, and/or the pressure of the stream that emerges from them.

Scavenging:

• Scavenging is the process of pushing exhausted gas-charge out of the cylinder and drawing in a fresh draught of air or fuel/air mixture for the next cycle

 Supercharging:

• Actually, power output of engine depends on what amount of air enter into the engine through intake manifold. Amount of entry air if increased, then must be engine speed will increased. Amount of air will be increased by increasing inlet air density. The process of increasing inlet air density is supercharging. 
• The device which is used for supercharging is called supercharger.Supercharger is driven by a belt from engine crankshaft. It is installed in intake system.

Turbocharging:

• Turbocharging is similar to the supercharging. But in that case tubocharger is installed in exhaust system whereas supercharger is installed in intake system. 
• The key difference between a turbocharger and a conventional supercharger is that the latter is mechanically driven from the engine, often from a belt connected to the crankshaft, whereas a turbocharger is driven by the engine's exhaust gas turbine
• Compared to a mechanically-driven supercharger, turbochargers tend to be more efficient but less responsive. Twincharger refers to an engine which has both a supercharger and a turbocharger. 

Governeor:

• Its function is to regulate mean speed of engine when there are variation in the load. 
• If load increases on the engine, then engine's speed must decrease. In that case supply of working fluid have to increase. In the other way, if load decrease on the engine, then engine' speed must increase. In that case supply of working fluid have to decrease.Governor automatically, controls the supply of working fluid to the engine with varying load condition.

Flywheel:

• A flywheel is a rotating mechanical device that is used to store rotational energy. 
• Its main function id to store energy in the time of working stroke or expansion stroke. And, it releases energy to the crankshaft in the time of suction stroke, compression stroke & exhaust stroke

Rating of fuel

S.I. Engine:

• Octane number : Octane number indicates ability of fuel to resist knock.

C.I. Engine:

• Cetane Number : Cetane number indicates ability of ignition of diesel fuel. That means, how much fast diesel fuel  ignites .

Stoichiometric ratio:

• It is the chemically correct air-fuel ratio by volume. By which theoretically sufficient oxygen will be supplied to burn all combustible elements in fuel completely.

Heat Transfer:

• Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy and heat between physical systems. 

Thermal Conductivity:

• It is the quantity of heat flows between two parts of solid material by conduction. In this case following consideration will be important fact-
• Time------ 1 sec
• Area of that solid material-------- 1 m²
• Thickness of that solid material------ 1m
• Temperature difference between two parts of that material------ 1k

Heat Exchanger:

• A device for transferring the heat of one substance to another, as from the exhaust gases to the incoming air in a furnace.
• The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air.
• More examples : intercooler, preheater, condenser, boiler etc.

Refrigeration:

• Refrigeration is a process in which work is done to move heat from one location to another

1 tonne of refrigeration:

• It is amount of refrigeration effect or cooling effect which is produced by uniform melting of 1 tonne ice in 24 hours from or at 0 degree centigrade or freezing 1 tonne water in 24 hours from or at 0 degree centigrade.

Humidification:

• The process of increasing the water vapour content of a gas.

Dehumidification:

• It is the removal of moisture from the air without change dry bulb temperature.

Gear Train:

• A system of interconnected gears
• Some important features of gears and gear trains are: ⁕The ratio of the pitch circles of mating gears defines the speed ratio and the mechanical advantage of the gear set.

Heat Treatment:

• Heat treatment involves the use of heating or chilling, normally to extreme temperatures, to achieve a desired result such as hardening or softening of a material.

Ferrous Metal:

1. Cast Iron - (2-6.67)%C, Si, Mn, P, S

2. Steel - (0-2)%C

3. Wrought Iron - 99.5% Fe

Non-Ferrous Metal:

1. Brass - (Cu+Zn)

2. Bronze -

(Sn+Cu) ------ Tin Bronze

(Si+Cu) ------- Silicon Bronze

(Al+Cu) ------- Aluminium Bronze

Allowance:

• It is the difference between basic dimension of mating parts. That means, minimum clearance between mating parts that can be allowed.

Tolerance:

• It is the difference between upper limit of dimension. It is also the permissible variation above and below the basic size. That means maximum permissible variation in dimensions.

Clearance:

• It is the difference in size between mating parts. That means, in that case the outside dimension of the shaft is less than internal dimension of the hole.

Stiffness:

• It is the ability to resist deformation.
• Stiffness is the rigidity of an object — the extent to which it resists deformation in response to an applied force. The complementary concept is flexibility

Toughness:

• It is the property to resist fracture.

Fatigue:

• When a material is subjected to repeated stress below yield point stress, such type of failure is fatigue failure.

Nuclear Fission:

• A nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy

Nuclear Fussion:

• It is also a nuclear reaction by which one big nucleolus will produced by adding two small nucleolus.

Welding:

• It is the process of joining two similar or dissimilar metal by fusion.

Arc Welding :

* need D.C current

* produced (6000-7000) Degree Centigrade Temperature

Gas Welding :

* Oxy - acetylene flame join metals

* Oxygen & acetylene gas works

* produced 3200 Degree Centigrade Temperature

Machine Tool:

• A machine tool is a machine for shaping or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing or other forms of deformation. 

Example - 1. Lathe2. Drill Press3. Shaper4. Planer5. Grinding6. Miling7. Broaching8. Boring

Cutting Tool:

Tool Materials for Cutting Tool:

1. High Carbon Steel

2. High Speed Steel (W+Cr+V)

3. Carbide (W Carbide+Ti Carbide+Co Carbide)

Indexing:

• It is the method of dividing periphery of job into equal number of division. Actually, it is the process of dividing circular or other shape of workpiece into equal space, division or angle.

Jig:

• It is one type of device which hold & locate workpiece and also guide & control cutting tool. It uses in drilling, reaming and tapping.

Fixture:

• It is one type of device which hold and locate workpiece. It uses in miling, grinding, planning & turning.

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