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Fire TV Stick with Alexa Voice Remote | Streaming Media Player

INDIA Price 3500Rs and US 2500

• The next generation of our best-selling Fire TV Stick–now with the Alexa Voice Remote.
• Enjoy tens of thousands of channels, apps, and Alexa skills with access to over 500,000 movies and TV episodes from Netflix, Prime Video, Hulu, HBO, SHOWTIME, NBC, and more. Plus, access millions of websites such as YouTube, Facebook, and Reddit with browsers like Silk and Firefox.
• Launch and control content with the included Alexa Voice Remote. Simply say, “Play Game of Thrones” or “Launch Netflix” and Alexa will respond instantly. Plus, play music, find movie show times, order a pizza, and more—just ask.
• No cable or satellite? No problem. Watch the best of live TV and sports from AMC, HGTV, ESPN, FOX, and others with a subscription to DIRECTV NOW, Sling TV, or top-rated primetime shows with CBS All Access.
• Find the best way to watch with universal search results from over 190 channels and apps including Netflix, Hulu, and Prime Video.
• Amazon Prime membership unlocks thousands of movies and TV episodes, including Thursday Night Football, Amazon Original Series, Prime Video Channels, and ad-free listening to millions of songs with Prime Music.
• Pick up where you left off. Bring hit shows and movies with you when you travel. Plug Fire TV Stick into any TV’s HDMI port, connect to Wi-Fi, and continue streaming.
• Play current favorites or quickly discover what to watch next directly from the Home screen.

Size	3.4” x 1.2” x 0.5” (85.9 mm x 30.0 mm x 12.6 mm)
Weight	1.1 oz (32.0 g)
Processor	Quad-core ARM 1.3 GHz
GPU	Mali450 MP4
Storage	8 GB internal
Wi-Fi connectivity	Dual-band, dual-antenna Wi-Fi supports 2x2 MIMO 802.11a/b/g/n/ac
Bluetooth	Bluetooth 4.1
Voice support	Yes, with Alexa Voice Remote (included) or free Fire TV Remote App (available for download on Fire, Android, and iOS)
Game controller support	Yes, optimized for Amazon Fire TV Controller and most games are compatible with other Bluetooth controllers
Cloud storage	Free cloud storage for all Amazon content
Ports	HDMI output, Micro USB for power only
Audio support	Dolby Audio, 5.1 surround sound, 2ch stereo, and HDMI audio pass through up to 7.1

Size	1.5” x 5.9” x 0.7” (38.4 mm x 150.7 mm x 16.7 mm)
Weight	2.4 oz (68 g) with batteries / 1.6 oz (45 g) without batteries

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How to Make a Telescope by Mechinical Engineering

1] Gather your materials. You'll need a piece of corrugated paper that is about 24 inches in length (this is a ridge material, easily available from paper stores or craft stores). You'll need two magnifying glasses that are NOT the same size. You will also need strong glue, scissors, and a pencil.

If the magnifying glasses are the same size, the telescope won't work.

2] Hold one magnifying glass (the bigger one) between you and the paper. The image of the print will look blurry. Place the second magnifying glass between your eye and the first magnifying glass.

3] Move the second glass forward or backward until the print comes into sharp focus. You will notice that the print appears larger and upside down.

4] Wrap the paper around one of the magnifying glasses. Mark the diameter on the paper with the pencil. Make sure that it is pulled tight.

5] Measure along the edge of the paper from the first mark. You will need to measure about 1 1/2 inches from the mark. This will create the extra length to glue around the magnifying glass.

6] Cut down the marked line on the paper to the other side. You should be cutting across the width of it (don't cut lengthwise). The paper should be about 24 inches in length on one side. Cut a slot in the cardboard tube near the front opening about an inch (2.5 cm) away. Do not cut all the way through the tube. The slot should be able to hold the large magnifying glass.

7] Cut a second slot in the tube the same distance from the first slot as was written down between the two glasses. 
  
You should now have two lengths of corrugated paper. One piece should be slightly larger than the other

8] Place the two magnifying glasses in their slots (big one at front, little one at back) and tape them in with the duct tape. Leave about 0.5 - 1 inch (1 - 2 cm) of tube behind the small magnifying glass and cut off any excess tube remaining.

9] Glue first length of paper around one of the magnifying glasses.You'll need to glue the edges of the paper together as well, since you've left about 1 1/2 inches of paper

10] Make the second magnifying glass tube. This one will need to be slightly bigger than the first one. Not too much bigger, only so that the first will fit into the second one.

11] Slot the 1st tube into the 2nd. You can now use this telescope for looking at things farther away, although it will be difficult to view the stars clearly. This type of telescope is really good for viewing the moon.

• The images will be upside down,(there is no up or down in space, after all). if you wish to align the image with gravity, you can use two prisms aligned in an "N" shape to correct the image, but you will have to re-position the lenses.

Solar Car

 A homemade simple solar powered ca. A great tutorial for people who enjoy DIY projects. The car is nice because we go about a clever way of using a gearbox to gain a mechanical advantage that allows the drive system to have enough torque to move the vehicle. The solar car also has a rechargeable battery added to it so that the solar panels can charge it and it can travel even when the sun isn't very powerful.

MATERIALS:-

1. Friction activated car.
2. 4 wheels.
3. 3, 1.5 volt solar panels.
4. Elsewhere you must obtain.
5. A small 4.5 volt motor.
6. A small 3.7 volt rechargeable battery.

METHODS:-

1. Setting Up the Solar Panels.

To do this we wire the positive of one solar panel to the negative of the panel beside it. And the positive of that solar panel to the negative of the next solar panel. 

After that glue to solar panels together as seen above.

 2. Attaching the Drive System We now need the gearbox.

We now need the gearbox. To obtain the gearbox take apart the friction powered car.

Once the gearbox is obtained glue it onto the solar panels.

To add structure you can see on the bottom you  attached 2 tooth picks with glue. This improves the structure of the gearbox and solar panel connection and enables it to bear a load more effectively. 

Then take 2 wheels from the tune up kit and attach them onto the axle of the gearbox. Some glue may be needed.

3. Preparing the Motor

The motor will drive the gearbox by simply using friction. To ensure there is enough friction to drive the gearbox you can attach power (3.7 v) to the motor to make it rotate.

Then bring the glue gun to it and add glue to the axle. It is important that the glue does not connect the rotating axle to the stationary, non-rotating part of the motor. 

After a bit of glue is applied it should distribute evenly in a round shape because of the centrifugal force. While the axle was rotating with the blob of glue on it, i pressed my finger against it lightly to flatten the glue out evenly.

4. Completing the Drive System

Then you attach the motor to the gearbox with glue.

Then you attach it so that the glue on the axle will come in contact with the rotation metal piece on the gearbox. by driving that piece, it will transfer power to the wheels and give us a mechanical advantage.

5. Attaching Front Wheels

For the front wheels (YOU CAN) cut a piece of straw out and glued it on the front. I then stuck a toothpick through it and attached wheels on both side.

6. Wiring

First  attach the battery pack with glue to the car.

I then wire the positive of the battery pack to the positive of the solar panels, and the negative of the battery pack to the negative of the solar panels. This makes it so that the solar panels will charge the battery.

Next a switch is attached. One side of the switch is connected to the negative of the solar panel and battery. The other side of the switch goes to the negative of the motor. The positive side of the motor is attached to the positive of the motor and battery. A comprehensive picture can be observed above of what the final circuit should look like.

Once that is complete the car is ready to test.

How to make generator from dc motor

 Generator From Motor. Very Simple.

Here we used two 12 Volts toy/ Old Tap-recorder Motors(From trash). One as a Motor  ( Turbne) and other one as a Generator/alternator. A whitle LED is coneccted as a Load to the Generator Ourput.

Note That this is seems to be a Motor-Generator Set, but No.. Because Motor-Generator  Set ( AC Motor and DC Generator) used as a Convertor (AC to DC and vice versa), and here we used it for glowing an LED ( For showing that how can we use a DC motor as a DC Generator).

MATERIALS:

• 2 Toy or Old Tap recorders Motor (one as a motor and other as a generator).
• 1 LED.
• One big rubber band as a belt.
• 2 pulleys (one small and other is large one).
• Flexi wire.
• 4 screws.
• Wooden piece.
• Metal strip.

METHODS:

1 Install both motors (one as a motor and other one as a generator) on wooden piece tightly by metal strip and tight the screws.
2 Connect both motors (one as a motor and other one as a generator) by rubber band or belt which is fixed in the pulley.
3 Connect an LED to the generator output (Red and black)
4 Connect the motor with 12VDC, and run it as a turbine. It will rotate the armature of generator by belt and current will produce in the generator that will glow the LED.

How to Make a Door Alarm

Door Alarm:-

A homemade alarm might be just the thing to alert you when a nosy sibling is poking around. Even for general home protection, a homemade alarm can take burglars by surprise. Ready yourself for building and mounting your alarm by gathering your materials and preparing the base of the alarm. Build the alarm by wiring together a simple circuit for your buzzer. Install your alarm by attaching components to the board and setting up the pull-string that'll trip your alarm.

MATERIAL:-

1. 1.5 volt battery
2. 1.5 volt mini buzzer
3. Cardboard (like from a cereal box)
4. Electrical tape
5. Glue
6. Insulated wire (3 strands, small gauge)

METHOD:-

1. Tape the battery and buzzer onto your wooden board. Use electrical tape to attach these to the wood. The tape should not interfere with or cover any of the connections for the electrical circuit for the buzzer, nor should it cover the positive (+) or negative (-) ends of the battery.
2. Your buzzer may come with screw holes. For a sturdier alarm, you can screw your buzzer into the wood. Be careful to use short nails so these don't protrude through the board.
3. Wrap the stripped wire around the ends of the clothespin. Wrap one stripped end of two pieces of wire around frontmost divot of the top of the clip-end of the clothespin. Do the same to the bottom of the clip-end of the pin with a separate wire. Twist the stripped wires around the pin until they are tight.
4. When the pin closes, the wires should touch. This will complete the circuit that sets off your alarm.
5. Connect the bottom-pin wire to the battery. Position the wire so it is directly touching the positive (+) end of the battery. Use a piece of electrical tape to fasten the wire in place. If your battery is in a dock or cradle, attach the wire to the positive connector or wire for the cradle and tape it in place
6. Connect one non-battery wire to the buzzer. There should be a small opening in the buzzer where you can insert your wire. There should be two connectors, positive and negative. Touch one of your top clothespin wires directly to the positive input for the buzzer.
7. Alternatively, your buzzer may have wire leads coming off of it. Strip these, if necessary, and twist your non-battery wire to the positive buzzer wire.
8. Break the circuit with a piece of cardboard. Cut a medium sized piece of cardboard to insert between the wires wrapped around the clothespin. Insert the cardboard so that the wires on the clothespin do not touch when it is closed. This will stop the buzzer from going off.Any non-conductive material will work to break your circuit. Try small pieces of paper, wood, or rubber.
9. You may need to fold thin cardboard so there is more distance between wires. Very thin cardboard may not reliably keep the circuit broken.
10. Connect the remaining wires. Attach the stripped end of one of your remaining free clothespin wires to the negative (-) end of the battery. Fasten it with electrical tape. Then, in the same fashion as the first, attached the final clothespin wire to the negative (-) input for the buzzer.
11. After you finish attaching the wire to the buzzer, cover any remaining bare wires with tape. While the circuit is engaged, touching bare wire will result in a shock.
12. Be careful not to knock out the circuit breaker between the wires of your clothespin. Doing so will complete the circuit, and likely cause a small shock when you try to attach the wire to the buzzer.
13. 
    
14. Test the switch by completing the circuit. Lay your alarm on a flat surface. Open the clothespin and remove the circuit breaker (piece of cardboard). When the clothespin closes, the circuit should complete and the buzzer turn on.
15. The ends of stripped wire on the clothespin should be in good contact. If they aren't or are just barely touching, wrap more wire around the clothespin.
16. When adjusting the clothespin wires, disengage your battery from the circuit to prevent getting shocked.