Simple Science

Pulley A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt. Overcome friction a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights. Types of pulley Fixed : Pulley is fixed and load is moved using pulley. A fixed pulley changes the direction of the force on a rope or belt that moves along its circumference A fixed pulley has an axle mounted in bearings attached to a supporting structure Movable : Pulley is attached to load. A single movable pulley is supported by two parts of the same rope and has a mechanical advantage of two A movable pulley has an axle in a movable block.. Compound (Block and Tackle) A block and tackle can have several pu

Mirror anamorphosis Mirror: Need : Mirror film sheet or mirror acrylic sheet Gift wrap tube or pvc tube Paste the mirror on the tube Print the anamorphosis picture. If you want to use your own picture, you can use gimp and invert the picture and create anamorphic mode for the experiment. Place the mirror at right spot and you can view the clear image of the distorted one in the printed  sheet . Infinity mirror : Need : Window film  Plain glass transparent round Mirror Box or make your own wooden box - Paste the window film on the plain glass - place the candle inbetween two mirrors and light it up. => Partial reflection and full reflection of the mirror creates the infinite images at right angle  Disappearing elephant/zebra - magic act: Need : Vegetable chopping mat acrylic mirror sheets popsicle sticks wood board or cardboard box Method: -Cut mirror into thin sheets - paste them as same width as the popsicle stick on the chopping ma

This project is to create a mini model of famous magic illusion chopped head on the block. What do you need? - a Used CD - a mirror strip or acrylic mirror that could be cut to a rectangle mirror - 5 handle stamp / wooden dowel anything that could mimic a table leg - a anthropomorphic toy - wooden base/box cut as shown in picture, make sure the back and front have same type or design. How to do? - Cut one of the handle stamp into two - paste them on the end of the mirror strip - cut the 3/4 of the cd - paste the remaining 4 legs on the cd, to mimic a table as shown in the picture. Illusion: Place the toy in the back side of the box place the cd table. Place a mirror strip in the front of the back legs of the table and back of the front leg as shown in picture. Ta-da illusion ready.

This project is to use Alice 3 to create a interactive video to figure out the state and the state dance. Project details To idea is to use the India political state map and convert into the grid and figure out the grids for each state and manipulate the code to track the mouse click to activate the image or video. Billboard: You can get/download the pictures into your computer for all or most of the states of India. We need to use the India political map to make it to grid and figure out the graph X and Y positions. Create variable arrays for each state to track the position in the scene property.  Opacity: For all the dance pictures we could go and set the opacity property to 0 so that it is invisible. EventListener: Either we could use KEYPRESS or MOUSECLICK event to track the user input. If keypress we could use the state abbreviation to activate the state input to show the dance video or picture.  Here we used MouseClickOnObjectListener and M

Just a fun project where we me and my brother built some animals with legos. We stopped by lego store and got some eye pieces sleepy eyes and droopy eyes and stuff. We had some poly bag lego animals and so used those too.

Tachometer - LDR and Microbit Purpose : To build a tachometer (not the one to measure how much tacos can you eat) but the one to measure RPM, speed of rotating objects like wheel, turbine etc., Hypothesis: Most of the commercial tachometers work with light and we are planning to use LDR to track light and calculate the RPM and using microbit to read, measure, calculate and display the results. Materials needed: LDR Microbit Resistor - 10k cables/ wires to connect I used lego 42020 helicopter but you can use anything. Procedure: Tricking out lego : why? 1. Increase width of the blades: If the blade width is too small it makes it difficult for the LDR to read so we are going to swap the blades of this lego set with that of Batman helicopter ones. 2. Use two pieces technic T-beams and one cross block piece to hold the LDR. Connect the LDR to the microbit and resistor circuit. Circuit:   You can use this to find the RPM of ANYTHING t

Distance sensor - Microbit  Purpose: This program measures 1 inch of from distance sensor and is not entirely accurate and when it is 2 cm 5 cm or 10 cm it preforms a Pokemon move. Materials needed: This project uses the BBC Microbit, Microbit Programming interface,Breadboard,Breadboard connector + Pin setup,5 VT battery,Connection wires, and the Microbit distance sensor. Procedure: Set up the circuit, Write the code, Download to Microbit,Run.` Circuit: ` THE BLACK WIRE IS CONNECTED TO A 5 V BATTERY Code Snippet: --------------------- Java code snippet The code is in JavaScript Microbit Code let Distance4 = 0 let Distance3 = 0 let Distance2 = 0 let Distance = 0 let echoTime = 0 basic.forever(() => {     echoTime = 0     // echoTime = sonar.ping( DigitalPin.P0,     // DigitalPin.P1, PingUnit.Centimeters ) send pulse     pins.digitalWritePin(DigitalPin.P0, 0)     control.waitMicros(2)     pins.digitalWritePin(Digital

The HOM Thinking Flexibly is utilized by creative people and those who find different solutions to something that is tough to solve . It is also utilized when Creating And Innovating which is another HOM which makes this a very useful skill.Using this skill we thought around problems in war, in society. My project: Use same set of Lego pieces to create mini models of different combination. Let your imagination and creativity take you on a journey to explore your mind. Let it go, lego , it is let it go.. Pieces I used: A maximum of four levers in 1 build. A Maximum of 2 cylinders per build. A Maximum of four water hoses without pipes(You'll see what I mean in the video). A Maximum of 4 Lego studs. A Maximum of 3 Lego 1x1 bricks with studs on side. A Maximum of 1 1x2 plate. A Maximum of 1 1x2 plate with 1 stud in middle. Models I managed to build : Video :)

Automata - Optical Illusion This project is to build an automata to explain and demonstrate HABITS OF MIND - THINKING FLEXIBLY and also optical illusion.

Steam engine PURPOSE: To create and mimic a steam engine that uses fossil fuel to generate heat to generate steam which inturns is used to turn the dynamo /generator to generate electricity. HYPOTHESIS: Heat water and generate steam and turn the turbine MATERIALS: Tin Can ( any soup/beans can) Turbine (either use tin sheet from coke/pepsi can and cut it to turbine shape) Steel rod or metal string to hold the turbine. Tuna can - (Cut the top and cut the top to make space and cover the bottom so that there is space for steam to escape)  Poke holes on top of tuna can for the steam to escape  We had this holiday candle and used that for turbine. https://www.amazon.com/gp/product/B077MN2HXR/ref=ox_sc_act_title_1?smid=A1EV4FXPRFOKD7&psc=1 PROCEDURE: 1.Poke a hole in tin soup can for the holder and also for steam to escape. 2. Insert the steel string  3. Place the cut turbine on top. 4. Pour some water into the tuna can and close i

Habits of mind - thinking flexibly  So flexible thinking is to explain some or all of the below - you are ready to think outside the box - there are multiple solutions for any problem  - rigid mind may lack in-depth vision and perception So, first I wanted to do with legos, why? - they are strong  - they are versatile  Just like our mind - strong, confident, reliable but still versatile and flexible Lego project : I picked couple of pieces and tried to show how many possibilities or models can be built with those limited pieces.  All the models were to be built from same set of Lego pieces and can’t use anything outside that. Sample ones I built  - micro R2-D2 - fire hydrant - beverage dispenser - nutcracker - Saturn V rocket - candle stand / chandelier  - Christmas tree - giraffe - paper towel rack - tree frog - ketchup and mustard condiment container - robot - traffic light Happy/ sad automata - here