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Proving Science

15 posts
Introduction In Engineering resistors one of the very common and one of the most essential components which are very widely used. The resistances of through-hole resistors can be calculated using colour code, while for other components and SMT components as well as calculating resistance is required in various situations. This is traditionally done by calculating the current and voltage through it to evaluate the resistance, but in practical conditions, this is not always very feasible to measur ...
neuromodulator

Radioactivity fun!

Posted by neuromodulator Sep 14, 2020
Introduction The Geiger counter setup Background radiation Radiation distance Radiation blocking Final words Introduction  Radioactive decay is the process where unstable atoms lose energy through emission of ionizing radiation in the form of particles or photons (gamma radiation). When unstable atoms emit particles they their nucleus changes, which means that the atom transmutes into a different isotope or different element. Ionizing radiation has enough energy to d ...
This blog is not an entry for the Proving Science challenge - but it does demonstrate Ohm's Law in action.  Proving Science seems like the best place to put it.   E=IR     In a different blog, I added extension cords to increase the resistance of a circuit and showed the resulting voltage drop across the extension cords.  But that isn't the only way that the resistance of a circuit increases.  What happens if we change the circuit resistance by decreasing ...
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   LASER stands for Light Amplification by Stimulated Emission of Radiation. As the name itself says it's a powerful beam of light which is coherent and monochromatic. Let's see how we can make a microscope with this key-chain LASER.   PLEASE DON'T FORGET TO VOTE ME IN CONTESTS. THAN ...
kmikemoo

Where Did My Volts Go?

Posted by kmikemoo Sep 13, 2020
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   What's not to love about seeing science in action?  We can't always see the actual event but we can see the results.  In troubleshooting, I call them symptoms, because the event we can measure or observe isn't the root cause.   I also decided to try making a video. ...
Harji Nagi

Fire Extinguisher Car

Posted by Harji Nagi Sep 11, 2020
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   Hello Everyone,My name is Harji Nagi.I am currently a second year student studying electronics and communication engineering from Pranveer Singh Institute Of Technology,Kanpur(UP).I have a keen interest in robotics,arduino,Artificial Intelligence and Analog electronics.   Watch ...
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   The Planck Constant and the Relationship of Frequency to Photon Energy by Frank Milburn   I have revisited a subject I first explored in 2017 using LEDs to determine the value of the Planck constant.  The method used is one that seems to be in wide use among undergraduate ...
Although my original Tempmeter (TempMeter : Measuring Temperature with a Brass Rod  ) does successfully measure temperature it requires quite a large temperature change to create a visible alteration to the indicator. It was suggested that by Dave Ingles beacon_dave and John Wiltrout jw0752 that a mirror could be used with a laser to increase  the sensitivity, so I thought I would try it out.   I 3D printed a small holder for some circular mirror pieces that I happened to have, p ...
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   Hello  Everyone,My name is Harji Nagi.I am currently second year student studying electronics and communication engineering in India. Today I made a smart  "Calorie Meter and Activity Tracker" via Arduino Nano ,HC-05 Bluetooth Module and MPU-6050 device which is a perfect co ...
For the Proving Science Project14 activity I thought I would have a go at measuring temperature using a technique I remember being discussed when I was at school, originated by a fellow pupil rather than the teacher, but not actually seen in action. It was in a physics class looking at the expansion of materials with temperature and it was a mind-changing moment for me as I realised that science and engineering stuff was so exciting and anyone could think about stuff and not just teachers and ol ...
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   THE FAST CHAIN PROBLEM - ARDUINO LASER GATES 1. Introduction Story What is IYPT? 2. Problem 3. Theory 4. Experiment Idea Build Software 5. Tests 6. Results & Analysis 7. Upgrade Ideas 8. Summary   1. Introduction   ...
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   Basic concept is to measure the speed of the sound using echoes and with the microphone build in notebook.   Apparatus and materials: 1. Notebook or device with microphone, 2. Sound editor e.g. Audacity 3. Paper or other material tube with known length (in my case 70 cm le ...
Harji Nagi

Voltmeter 4*Reading

Posted by Harji Nagi Jul 31, 2020
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   I made a dc voltmeter which displays four different reading simultaneously on 16*2 LCD screen via Arduino nano and voltage divider circuit.The monitoring display consist of 4 different parameters i.e V1,V2,V3,V4. Each parameter can measure up to 12 volts. In this vedio I connected so ...
dougw

Electric Hula Hoop

Posted by dougw Top Member Jul 30, 2020
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   The Problem How can we make a hula hoop automatically go up a straight vertical pole? The problem sounds simple, people have been playing with hula hoops for many decades making them go up and down their bodies. However, when it is a straight vertical pole instead of a gyrating huma ...
Proving Science Enter Your Electronics & Design Project for a chance to win a $200 shopping cart! Submit an EntrySubmit an Entry  Back to homepage Project14 Home Monthly Themes Monthly Theme Poll   After watching James Lewis' Work Bench Wednesday presentation a couple weeks ago on Clamp Meters and sensing current   Workbench Wednesday 24: No-Contact Current Measurements   and reading some of the comments I decided that it would be fun to run some experiments to ver ...