Friday, March 12, 2010

Ok GO..

Friday, March 5, 2010

Ornithopters, very interesting and cool..

Every Robotics and Tech geek dream about making small things which can fly by themselves. Ornithopters are the aircraft stimulating a bird which can fly by flapping the wings attached to it! Sounds very different and  weird, right? look at the following video to get some basic Idea.

 

 

Well, I had some more videos lets take a look, then will come to see its internals .

 

 

The above one looks very much modern and flies much comfortably.

 

Coming to its internals,

First it needs a high-powered motor and then a gear drive to convert circular motion to linear(not perfect linear, it depends on the wings) and then a battery or power source for motor.

 

Motors:

Till now We have seen Motors pump drive water or drive gears etc..But seeing the need of the project we need a very low-weight motor which can drive at higher-speeds  with high torque having high weight/torque generated ratio. So, brushless Motors are preferred , Any of the 2 types of these Motors,  inrunner brushless or outrunner brushless can be used.

baffled about these two types of Motors??

In Inrunner, Coils(electro Magnets) are Outside and Permanent Motors are inside and when coils are switched On and OFF accordingly permanent magnets rotate.So, shaft is attached to permanent Magnets.

Outrunner are inside-out of Inrunner Motors. Coils are around shaft but not attached to it and permanent motors are outside and when coils are switched On and Off permanent magents rotate which are attached externally to shaft making it to rotate as per Faraday’s laws.

TIP: Best available brushless motors are the vibrators in our mobiles.Yeah, they are core-less and no iron-core in armature.

 

 

Gear Drive-train

 

This is one of the most important job to be done perfectly. Most electrical guy topple seeing this task. Its best to consult a good mechanical guy and make things simple. look the the following video to get why this is tough for Electrical guys..

 

 

Batteries

 

The most important part is motivating the motor to the needed level of  flight digesting the load of aerodynamics,losses in flapping wings,gears etc..We have constraints of weight but as we reduce the battery weight powering the Motor for long enough becomes difficult . So, in conclusion only Li-Poly (Lithium Polymer) batteries are recommended. Rechargeable Li-Poly are best for long run.They do have some drawbacks regarding safety and short-life but they suit for this application. In the end, Li-Poly battery of 200g can carry a 400g Ornithopter not for more than 20 min.

 

That's it from ma study on these Ornithopters , You can update nfo by comments and I welcome it . :D

 

Lets see some more astonishing videos where Ornithopters are small as a finger and as light as feather

 

 

(The above one is totally crazy) just 2.5 Cm wings and 920mg weight ??? superb, buddy!!

Penguins can Fly..

HAHA sounds ridiculous, right?? How can penguins Fly?? well, See this Video

 

 

These penguins are creating air-aquatic theme..

Thursday, March 4, 2010

Apple suing each mobile manufacturer, Palm, Nokia, and now HTC..

Lets move backwards….

 

March 1st, 2010

Apple filed lawsuit on HTC for infringing their 20 patents in their mobiles.

20 patents?? that's heavy and how could a big manufacturer like HTC could forget those patent rights???According tothis detail report in engadget.com Its clear that both companies had infringed their IPs and are extensively using them when needed and bashing them when required, Are they playing or Its just good business??              I think they do this in their conscience and create a recipe to others for marketing!!

 

 

June 24th, 2008

Apple Vs Nokia

 

Tycoon technologies sues everyone for using their touch computing patents(Of course , This company name was not in NEWS)

This can be said as the one of the most longest patent war in history of Apple.

 

Oct 22nd, 2009  Nokia sues Apple,  says iPhone infringes 10 patents

Dec 11th, 2009  Apple  countersues Nokia for infringing 13 patents

Dec 29th, 2009  Nokia brings Apple patent fight to ITC, says most Apple products infringe

Jan 4th, 2010 Nokia asks ITC to ban iPhone, iPod, and MacBook imports, files another lawsuit against Apple

Jan 16th , 2010  Apple retaliates: requests US import ban on Nokia phones

 

Source:

http://www.engadget.com/tag/apple,nokia,legal

http://www.engadget.com/2010/03/02/apple-vs-htc-a-patent-breakdown/

Wednesday, March 3, 2010

Home in a BOX..

 

‘Home in a Box’ is the series of interior module design of BOXETTI. These designs can be said one of the best space-saving, multi-purpose transforming creating an all-in-one feel.

 

 

 

 

Its the design where every room in a Home is brought under ne using transforming feature of the Design and Furniture.Its so modern but yet so Contemporary .

Solar-powered Street Lamps

Till now We all saw the solar-powered street lamps which charges and recharges its batteries at Day and Night respectively, But this is the latest implementation of solar street lighting concept  with a mix of bizarre architecture, GREEN(I mean Eco Green), and also a superb technique of plantation.

 

 

 

 

Looking aesthetically cool and very much scintillating on roads. Those green lit paths is the way water is being rotated in the tree. Light is supplied at the bottom of the tree while Water carries the light to the end part of stems using Hydroponic effect of Water. Seeds are placed at the end of stems where little plants grow creating more soothing effect for drivers.