This page would be updated with more inventions every month when we come across them. On the top right corner of your browser you can use the Find/Search option to search for the invention you are looking for.  If you come across any interesting invention or interview with impact making inventors, please send it to us for publication. To see live updates of latest inventions, you can join the 'World of Inventions' closed group on facebook.

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• Drone that can carry people
  https://www.youtube.com/watch?v=_vGd1Oy7Cw0
• They claim this technology drastically reduces the sound of snoring
  https://www.youtube.com/watch?v=QYaTwOU6CSI
• Shake free video camera
  https://youtu.be/tJZzgNwLoNA
• Foot powered washing machine
  https://www.youtube.com/watch?v=SUgF24GcDi0
• Skully - Helmet with rear view camera
  https://www.youtube.com/watch?v=ZdcWd594lRw
• It cools only the bed instead of the whole room. Saves a lot of energy
  https://www.youtube.com/watch?t=162&v=cdWD37a6-XY
• You can attach any shoes to this roller skates. It alternates between shoes and roller skates at the press of a button
  https://www.youtube.com/watch?v=MTHZVChP01o&feature=youtu.be
• Mistbox - Save 30% on Your Air Conditioning
  https://youtu.be/e-7THc1kgek
• World's first commercial jetpack
  https://www.youtube.com/watch?v=LDp1XztObUQ
• Scalevo - The Stairclimbing Wheelchair - ETH Zurich
  https://youtu.be/3lb_8nmy90c
• Lenovo Smart Cast, world's first laser projector smart phone
  https://www.youtube.com/watch?v=JwBem1Ul8dk
• I think all countries with significant length of two way roads should make this back screen on trucks and buses compulsory
  https://youtu.be/ZetSRWchM4w
• Audi's carbon neutral diesel. Lower Saxony's Research and Developement Minister's (Dr Johanna Wanka) car is run by this diesel
  https://youtu.be/55Edq_Irstk
• Festo – FlexShapeGripper (English)
  https://www.youtube.com/watch?feature=player_embedded&v=m7l-87r4oOY
• Festo - BionicOpter
  https://www.youtube.com/watch?feature=player_embedded&v=nj1yhz5io20
• Festo - eMotionButterflies
  https://www.youtube.com/watch?v=1gu3z7w4Vc8
• Festo - BionicANTS
  https://www.youtube.com/watch?v=FFsMMToxxls#t=35
• Top 20 awesome products for 2014
  https://www.youtube.com/watch?v=AfDGN49u4Qc
• Boston Dynamics' quadruped robot called Spot
  https://www.youtube.com/watch?feature=player_embedded&v=M8YjvHYbZ9w
• World’s first grid-connected wave energy array switched on in Perth, Australia
  https://www.youtube.com/watch?v=QKQS8PxwRXg
• Kenneth Shinozuka: My simple invention, designed to keep my grandfather safe
  https://www.youtube.com/watch?v=tFX1nQLZUVM
• Richard Turere: My invention that made peace with lions
  https://www.youtube.com/watch?v=RAoo--SeUIk
• Self balancing motorized roller skates. Thus no practice needed. You can strap it and start riding
  https://www.youtube.com/watch?v=tGM2p0xCUDU
• Wearable Airbag
  https://www.youtube.com/watch?v=IOY40pWbqnA
• The company, Aerofex claims that this hover bike would be available for sale for $85,000 from 2017 onwards
  https://www.youtube.com/watch?v=uwxaZ9KCdcE
• World's first rope-free elevator my ThyssenKrupp
  https://www.youtube.com/watch?v=KUa8M0H9J5o
• Airbag for bicycles
  https://www.youtube.com/watch?v=0aX-WXBMI8I
• Titan Aeropace (already acquired by Google) says their drones can fly for 5 years continuously at approx 20km heights where weather is steady. These drones at such heights can be used for beaming much faster wireless internet and cell phone signals.
  https://www.youtube.com/watch?v=XmN13LnBk3c
• Mobile Hydro would float on water and generate electricity. Designed by engineering students from Germany
  https://vimeo.com/47503158
• Xoo belt, it can charge your cell phone
  https://www.youtube.com/watch?v=a1Wk9WdT7QE
• QOLO is a powered wheelchair created by two engineering students from Japan's University of Tsukuba. It's designed to allow people who lack the use of their legs to stand up, move across the floor in a standing position, and then sit down again.
  https://www.youtube.com/watch?v=eavedBGY2VE
• Bygen's amazing and more efficient direct drive bicycle. 
  http://vimeo.com/89376725
• The Lasik eye surgery performed on 1million+ people every year to cure cataract and other vision defects was invented by Dr Rangaswamy Srinivasan. The technology is also used in microchip packaging, micro-machining and ink-jet printer.           
  https://www.youtube.com/watch?v=RJueLVTqnUs
• "Engineers are not like lawyers who upon their graduation from Law School begins to 'practice' the legal profession. Engineers are not like Physicians who set up a 'medical practice' upon graduation from medical school. Your graduation with an electrical engineering degree says that your days of 'practicing' are over. Society and the ECE department expects you to get it right the very first time. Even in the 'code of Hammurabi' 300BC, it states that if an engineer builds a house and that house collapses and causes the death of the owner, that engineer shall be put to death. Now that's a heck of a serious enforcement of professional integrity".
  https://www.youtube.com/watch?v=cIgJYUtqyU8
• One of the most impressive interviews I've seen recently. Dr C Kumar N Patel definitely deserves a Nobel Prize for his invention of CO2 laser used in cutting, welding, laser surgery and now shooting down flying objects. "One of the great things that Bell labs was good at in the 1960s was that they promoted people who were technically sound, not the people who could speak well or present well, but people who had good technical judgement. As a manager we got judged by not what you had done in the past in terms of technology or what you would do in the future, but by the number of people you hired who are smarter than you. That's a very tall order because it's a system that ratchets itself up in quality instead of ratcheting itself down in quality. I'm very happy to say that I have the unique distinction at Bell labs of having hired 6 people personally who got Nobel Prize"                                                                      
  https://www.youtube.com/watch?v=7v43P-SY0eU
• Unmanned drone to deliver text books in Australia.
  http://www.youtube.com/watch?v=y9MPQCPbsqE
• Rodent resistant chicken feeder.        
  http://www.youtube.com/watch?v=vU0neekA4dE
• Mobile Hydro would float on water and generate electricity. Designed by engineering students from Germany.                                                        
  http://vimeo.com/47503158 
• Nokia Treasure Tag keeps you from leaving things behind.
  https://www.youtube.com/watch?v=Npir2sbTbKE
• Ajay Bhatt is the co-inventor of USB (popularly known as Pen Drive). This is the first video I've seen where an inventor is shown as a rock star to market the company brand he works for. The role of Ajay Bhatt is played by Sunil Narkar.
  https://www.youtube.com/watch?v=r1B6ReUj8w8
• Video interview of Ajay Bhatt, co-inventor of USB (pen drive).
  http://vimeo.com/84010923
• Audio interview with Ajay Bhatt,  co-inventor of USB (pen drive).
  http://www.abc.net.au/sundayprofile/stories/3871918.htm
• World's first 4 wheeled scooter.    
  https://www.youtube.com/watch?v=115KKvd5qVQ
• Ball and feather falling at the same acceleration for 10+ meters in a big vacuum chamber.                                                                   
  https://www.youtube.com/watch?v=E43-CfukEgs
• HEALTH sensor allows detection of almost any disease using a single drop of blood in minutes                                      
  https://www.youtube.com/watch?v=jB7Wy7Z_Vvw
• Gaffgun is an adhesive tape that can stick electric wires on floor/wall easily. https://www.youtube.com/watch?v=6zkIt99f7Dw
• Ambulance Drone would save millions of lives every year in near future. Nice idea. The technology could be ready and demonstrated in a few months.
• https://www.youtube.com/watch?v=y-rEI4bezWc
• TU Delft - Ambulance Drone would save millions of lives every year in near future. Nice idea. The technology could be ready and demonstrated in a few months.
  https://www.youtube.com/watch?v=y-rEI4bezWc
• Portable washing machine.             
  https://www.youtube.com/watch?v=o33wO3bovTk
• PureTowel is a smart towel hanger that instantly cleans your towel after usage. https://www.youtube.com/watch?v=ITbeWXNhHCM
• Aeromobil - flying car.                  
  https://www.youtube.com/watch?v=mGAimPwLZlk
• Eye Tribe Tracker - now you can browse by looking. No need to touch or use mouse https://www.youtube.com/watch?v=2q9DarPET0o
• Aerofex claims that this hover bike would be available for sale for $85,000 from 2017 onwards.                                         
  https://www.youtube.com/watch?v=uwxaZ9KCdcE
• Project Wing - drone delivery by Google. Now Amazon Prime Air has competition https://www.youtube.com/watch?v=cRTNvWcx9Oo
• DHL Parcelcopter - drone delivery service launched in Germany by DHL. It would deliver medicines 12km across the north sea to an island called Juist.
  https://www.youtube.com/watch?v=AIxsVkK-B-c
• .

• Another add on friction drive to convert normal bicycles to e-bicycles
  http://www.youtube.com/watch?v=0ZG78xFisJs
• Cool invention. Portable door lock for any door
  http://www.youtube.com/watch?v=uyMPIJXH_Fg
• A self contained and powered wheeled bicycle.
  http://www.youtube.com/watch?v=S10GMfG2NMY
• Mercedes Benz demos many lighting innovations
  https://www.youtube.com/watch?v=UPHd6S_4180
• Amazing car parking robot at Dusseldorf airport in Germany
  https://www.youtube.com/watch?v=PICb71mIU1I
• Trikelet - The most compact foldable electric vehicle in the world
  http://www.youtube.com/watch?v=eOBNKU_OjOE#t=97
• Found this website useful. It gives animation of how machines work
  http://www.learnengineering.org/
• Airbus introduces their first electric airplane
  http://www.youtube.com/watch?v=l_vOVOTglt4
• Fully battery powered VTOL aircraft. This one got Popular Science 2014 invention award
  http://www.youtube.com/watch?v=A-6I_A761R4
• This company claims to have developed a cell phone battery charger that would charge the cell phone in 30 seconds.
  http://www.youtube.com/watch?v=kIZhQVAdiEs
• Titan Aeropace (already acquired by Google) says their drones can fly for 5 years continuously at approx 20km heights where weather is steady. These drones at such heights can be used for beaming much faster wireless internet and cell phone signals.
  http://www.youtube.com/watch?v=XmN13LnBk3c
• Young Scientist award winner Eesha Khare interview
  http://www.youtube.com/watch?v=KLcbRTMxdQs
• This technology saves water in gardening/agriculture by pouring water precisely on the root without having to use plumbing/piping. The inventor, Steve Fernholz says India is a good market for this technology.
  http://www.bloomberg.com/video/droplet-the-world-s-first-smart-sprinkler-Hcrl2vBaS0mmueIpOBrovQ.html
• Obama's generous praise for inventors and scientists at white house.
  http://www.youtube.com/watch?v=UvZwf6bEHtY
• A novel design which senses the weight the chicken and opens the door.
  Good work. Very useful for homes.
  http://www.youtube.com/watch?v=vU0neekA4dE
• Motocycle Airconditioning by EntroSys
  http://www.youtube.com/watch?v=LnEibndWyQU
• Amazon has the money to defeat the demoralizing regulatory hurdles of governments and make drone based mass delivery a reality. Soon drone based travel will follow. That means a flying machine cheaper, smaller and lighter than a car.
  https://www.youtube.com/watch?feature=player_embedded&v=98BIu9dpwHU
• Volvocopter – multi fan helicopter
  http://www.youtube.com/watch?v=tNulEa8LTHI
• Airbag for bicycles
  http://www.youtube.com/watch?v=0aX-WXBMI8I#t=50
• In this electric bicycle, the battery, motor and all electronics are inside the wheel. Thus this wheel fitted on any bicycle changes the bicycle to an electric bicycle.
  http://www.youtube.com/watch?v=g2IPCpFqJMU
• Unmanned drone to deliver textbooks
  http://www.youtube.com/watch?v=y9MPQCPbsqE
• Roti making machine
  https://www.facebook.com/photo.php?v=10200748414015973&fref=nf
• This invention can convert any bicycle into an electric bicycle without any retrofitting or refitting.
  http://www.youtube.com/watch?v=HxZHAOM0ZL0
• This invention by Carina Kraus of Germany can iron your dress. Carina, you are my hero. I still wonder why it took this long for an invention that can iron your clothes
  http://www.youtube.com/watch?v=_8gejsIpYHw
• World’s first wireless electric vehicle begins test run in Korea
  http://www.youtube.com/watch?v=K2E-C_COxLU&list=TL3hShApvURbE
• World’s first hands free umbrella
  http://www.kickstarter.com/projects/36197580/finally-the-worlds-first-hands-free-umbrella-has-a/widget/video.html
• Tvilight technology would sense if people are around at night and automatically dim the street light and come back to full brightness when it detects people/vehicles. This is a good project idea for engineering students.
  http://www.youtube.com/watch?v=ec2sIIpUoLY
• Students planning to do an innovative project and wanting to buy engineering components or product designers can contact mouse electronics in bangalore/US. I found their website quite useful for sourcing many specialty components. They have mechanical, electromechanical and electrical/electronics components with their prices and availability displayed.
  http://in.mouser.com/
• Sikorsky Prize claimed: 64s of human flight end 33 years of toil
  http://www.youtube.com/watch?v=syJq10EQkog
• volvo's self parking car
  http://www.youtube.com/watch?feature=player_embedded&v=3VL40Uyx2c4
• This is just the beginning. In future, it would be lighter, less noisier, cheaper and have more flying time. The engineers and designers have done a great job.
  http://www.youtube.com/watch?feature=player_embedded&v=TtylFugOT_4
• Dominos Pizza delivering pizza using a quadracopter. I think in future all mails and light weight parcels would be delivered this way.
  http://www.youtube.com/watch?feature=player_embedded&v=on4DRTUvst0
• You can draw on air. Fastest crowd funded project on kickstarter, they say.
  http://www.youtube.com/watch?v=AzJPwcMEWZY&feature=youtube_gdata
• I think this Lumigrids idea could be developed into something that can be fitted onto all cars/vehicles in India.
  http://www.gizmag.com/lumigrids-led-projector/27691/
• Robot that play Rubik Cube
  https://www.facebook.com/photo.php?v=533244203384957
• New kind of vehicle.
  http://www.youtube.com/watch?v=nNgt-6WgS8Q
• Honda Unveils the New Walking Assist Device
  https://www.facebook.com/photo.php?v=520315911344615
• Trucks/buses that run by grid power
  http://www.youtube.com/watch?v=kMev1FCMQLU
• Toyota i-Road. With tilt wheel feature, more stability during curves
  http://www.youtube.com/watch?v=QeUTacVl858
• Volvo innovates again with its Active High Beam. The car would automatically avoid glare on other vehicles.
  http://www.youtube.com/watch?v=DL9x8oI8MQw
• PAL-V flying car
  http://www.youtube.com/watch?v=SgHSaNtAMjs
• cell phone cleaning robot.
  http://www.youtube.com/watch?v=EjzH56WQvDc
• Robotic wheelchair that can climb steps
  http://www.youtube.com/watch?v=t2SHKyq5yCU
• Hiriko, foldable electric car, only 500kg.
  http://www.youtube.com/watch?v=7todEym4yQY
• Motorized Roller Skates
  http://www.youtube.com/watch?v=vNYn7Zmkbmc
• Hop, the following suitcase from Spain. The suitcase is tethered to your cell phone via bluetooth
  http://www.youtube.com/watch?feature=player_embedded&v=hucNBe5sgY0#!
• Toyota's new single passenger electric vehicle.
  http://www.youtube.com/watch?v=kTpnuFBNryo
• Urban mobility vehicle running on compressed air. Tata Motors is planning to launch this.
  http://www.youtube.com/watch?v=0RBl1LFUQ4c
• World's first wind powered charging station, used to charge battery powered cars in the parking lot.
  http://www.youtube.com/watch?v=iEHLNmqgSgc
• MIT's claim of self guided plane. Not sure it's completely self guided. May be it's given an approximate trajectory and it adjusts the path to avoid objects
  http://www.youtube.com/watch?v=kYs215TgI7c&feature=player_embedded
• World's first swimming robot being attempted
  http://www.youtube.com/watch?v=e_Gp5h14KG4
• New kind of aircraft, Fanwing Aircraft. Flying video starts at 2:35.
  http://www.youtube.com/watch?feature=player_embedded&v=asJqvrikQSA
• Entire street in China using wind-solar hybrid street lighting. Fast forward to 125 seconds
  http://www.youtube.com/watch?v=zM4Nuh6dpmc&feature=plcp
• Wind-Solar hybrid LED (50W) street light. 50W LED is equivalent to 100W CFL or 200W tubelight in lighting intensity.
  http://www.youtube.com/watch?v=lheoMG-6IpQ
• A car that runs on air
  https://www.facebook.com/photo.php?v=377884832259190
• This milk jug would SMS you before it decays
  http://www.youtube.com/watch?feature=player_embedded&v=EJ-QsPoqCxI
• The 60Watt cooker. This would easily work on low cost wind/solar/human power generation. Compare the normal electric cooker that has a 1000W nameplate.
  http://www.youtube.com/watch?feature=player_embedded&v=xHjeeaE8HMY#!
• World’s first Pedal Assist boat
  http://www.youtube.com/watch?v=djKD5Lb7iJM
• Self balancing motorcycle
  http://www.youtube.com/watch?v=zb51CvptTt4
• This microinverter converts solar panel dc into ac, avoiding the need for batteries and battery chargers.
  http://www.youtube.com/watch?v=Fzj2a-9M4qo
• A robot that can fly like a bird.
  http://www.ted.com/talks/a_robot_that_flies_like_a_bird.html
• This stove saves energy in cooking
  https://www.facebook.com/groups/262520067125559/
• Another light weight electric scooter claimed as the lightest. Only 12kg.
  http://www.youtube.com/watch?feature=player_embedded&v=EhltzQHjsvo
• The Personal flying Machine
  http://www.youtube.com/watch?v=gLbayBxbNII
• World's first self balancing motorcycle. Would not fall even while at rest.
  http://www.gizmag.com/lit-motors-c1-self-balancing-motorcycle/21002/
• Building tall towers (150m+) to support the wind turbines are extremely costly. Instead, the turbine can be lifted to big heights using a helium balloon. As height increases wind speed increases and thus more energy can be tapped. Plus this design is transportable. When wind speed is doubled, the energy content in the wind increase by 8 times.
  http://www.youtube.com/watch?v=rsHUALU--Wc
• World’s first Pedestrian Airbag
  http://video.uk.msn.com/watch/video/the-worlds-first-pedestrian-airbag/2g2vnoej
• Quadracopter ball juggling
  http://www.youtube.com/watch?v=3CR5y8qZf0Y
• Bicycling Robot
  http://www.youtube.com/watch?v=mT3vfSQePcs
• 3D display in pure air
  http://www.youtube.com/watch?v=EndNwMBEiVU
• Asima – world’s most advanced robot
  http://www.youtube.com/watch?v=1wdrjZqhjYA
• This technology cuts off the electric circuit when a human comes in contact with it in 1/30th of a second.
  http://www.youtube.com/watch?v=Vkd43t2y2to&feature=related
• Siemens VDO eCorner Project. Contains inwheel motor
  http://www.youtube.com/watch?v=8tLQ2-yKT4Y
• World's first baseload (24/7) solar thermal plant (20MW). The plant stores heat energy during day (in molten salts) and this energy is used at night to generate at energy
  http://www.torresolenergy.com/TORRESOL/gemasolar-plant/en
  http://www.youtube.com/watch?v=GhV2LT8KVgA
• Nuvinci's continuously variable transmission (CVT) for bicycles
  http://www.youtube.com/watch?v=4n15N6yS2dE
• 80kg (including batteries) electric multicopter, 30 minutes flying time. Safer and parachute deployable
  http://www.youtube.com/watch?v=L75ESD9PBOw
• The wind speeds at 500m height can be up to 3 times faster than on the ground level (30m) which amounts up to 27 times more power in the wind because wind power is proportional to the cube of velocity.
  http://www.youtube.com/watch?v=sKcp3h0VlK0
  Regenerative elevator by Otis. When people go down, it turns a generator that feeds electricity to grid or battery for storage. Saves approx 70% energy, they say.
  http://www.youtube.com/watch?v=9b5cmK6DUfw
• The latest model electric bicycle from Daimler to be launched in Jan 2012 would have a range of 100km, regenerative brakes, transportable batteries and many more for $4000.
  http://www.youtube.com/watch?v=gUVxgGAoSs0&feature=relmfu
• Toyota Winglet. New kind of transportation.
  http://www.youtube.com/watch?v=2VqV2z7dq3M
• Toyota iReal, another kind of Personal mobility
  http://www.youtube.com/watch?v=tir27qgT5zg&feature=related
• Honda U3X, new kind of transportation. It balances itself.
  http://www.youtube.com/watch?v=cuIJRsAuCHQ
• Volkswagen's foldable electric bicycle. 20kg, cool.
  http://www.youtube.com/watch?v=sXhhWXw9V7A&feature=related
• All carbon fiber electric bicycle by Lexus (Toyota). Weighs 17kg
  http://www.youtube.com/watch?v=xfxoIYhiI-c
• Video. Human powered plane. It is said to have flown some 100km. with a battery and solar panels it could go much further and higher.
  http://www.youtube.com/watch?v=l131fSveof8
• Video. Interesting stirling engine powered toy car.
  http://www.youtube.com/watch?v=b5m1kba38YM
• Video of world's first all electric helicopter. Can fly 15mts, 90mph max speed
  http://www.youtube.com/watch?v=oD8TfjDMYT0
• Backpack helicopter. Nice invention.
  http://www.youtube.com/watch?v=zFJ5Dfettz8
• Sanyo Eneloop, the world's only mass manufactured bicycle with Regenerative Braking. Only 20kg. Range 40km-60km
  http://www.youtube.com/watch?v=1AU7rJdWKnM&feature=related
• Video of KERS by compressed air (or fluid with good compressibility) being used in stop and go trucks. Animation starts at 1.08 minutes.
  http://www.youtube.com/watch?v=Ts4PRnfTSac
• Video of Kinetic Energy Recovery System (KERS), flywheel method. In normal braking of a car, the kinetic energy is converted into heat in the brake shoes and lost. This energy can be stored in a rotating flywheel and reused for accelerating the car. Now they are being successfully implemented in F1 racing and top end luxury cars. In 5-10 years, after the technology becomes mature and cheap, we can expect it to be a mandatory feature in all cars.
  http://www.youtube.com/watch?v=xAvexjr2ax0
• Shows video and diagram of upcoming KERS by Volvo. The contact between wheel and flywheel is purely mechanical (more reliable and efficient). No motor generator involved. I love volvo for all the inventions they launched in their cars.
  http://green.autoblog.com/2011/06/02/volvo-to-test-fuel-saving-flywheel-kers-system-w-video/
• Video of KERS using coil/circular springs. This is a college project. The problem with springs is that their energy density (storable energy per kilogram of spring) is so small
  that they cannot be used in cars or motor bikes. May work for bicycles for small distances and could be improved to bigger distances.
  http://www.youtube.com/watch?v=UHPrOloikVE&feature=related
• This video is the cheapest form of wave energy because it's at the shores (no contact with salty sea water), minimal installation and maintenance expenses.
  http://www.youtube.com/watch?v=gcStpg3i5V8&feature=results_main&playnext=1&list=PLC5EF557D0C340A31
• Video of Wind powered water pumping and irrigation in Cambodia.
  http://www.youtube.com/watch?v=LM_1kCg9XWs&feature=related
• In this technology being designed and constructed, wind turbine would generate electricity to run a compressor that outputs high pressure air which is stored in underground containers. When electricity is required, the high pressure air expands in a turbine-generator connected to the grid.
  http://www.youtube.com/watch?v=K4yJx5yTzO4
• In this technology, wind turbine would mechanically rotate a high efficient compressor and store compressed air that can be piped to industries where a turbine-generator would rotate to produce electricity. No transmission loss as in electric grid.
  http://www.youtube.com/watch?v=zaBODwlLEd8
• BBC reported Jeremy Clark's award winning documentaries on 'Inventions that changed the world'. Suggest you watch the entire series on radio, gun, jet engine, television, computer and telephone.
  Telephone
  http://www.youtube.com/watch?v=dm1-N9UVG7s
• Gun
  http://www.youtube.com/watch?v=xai1GjLzKsg
• Jet Engine
  http://www.youtube.com/watch?v=b5-2uIxKeFw
• Computer
  http://www.youtube.com/watch?v=WO7hpEy8_Wg
• Television
  http://www.youtube.com/watch?v=1dxtfqBC20M&feature=related
• World's lightest foldable electric bike, about 10kg. If made in India/China in mass, it won't cost more than $100 (Rs 6000)
  http://www.youtube.com/watch?v=X813eTuZJkc
• This new kind of engine is 30% more efficient than normal engines, lighter and less polluting. Engine animation starts after 25 seconds.
  http://www.youtube.com/watch?v=buX89nlww2E
• This is a floating balloon wind generator. Helium in the balloon floats it to big heights where wind speeds are about tripple and more steady than on ground. A brushless generator is used. Ropes are attached to stator (coils) and permanent Neodymium magnets to rotor. 
  http://www.youtube.com/watch?v=I6ZFcKnP2AM&feature=related
• This video explains how to make a pedal powered generator. The bicycle stand can be made in any metal fabrication shop by welding for less than $8 (Rs400). All other parts are available in the market to buy. Watch video2, video3...
  http://www.youtube.com/watch?v=X0r9T7RwdPs&feature=related
• How I built my family a wind mill. William Kamkwamba
  http://www.youtube.com/watch?v=G8yKFVPOD6o
• World's most efficient small wind turbine. Its tail moves like a fish. Japanese make.
  http://www.youtube.com/watch?v=mjbg787qQnk