| October 28, 2024 |
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Added a new video about improvements to Izzy object selection and making Izzy more compact. |
| February 25, 2023 |
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Added a downloadable files for making zoetrope animations and
a downloadable template for making a pinhole camera from poster board. |
| February 21, 2023 |
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Added a downloadable template for making the corona motor v2. |
| November 24, 2022 |
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Added details about Izzy, an artificial intelligence robot I'm working on and
my changes to the darknet neural network framework. |
| March 10, 2022 |
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Added an MIT paper with a theoretical model for how a lifter (ion propulsion device) works. |
| February 15, 2021 |
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How to communicate between a Raspberry Pi and an Arduino using serial USB. |
| October 31, 2020 |
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Added videos for designing and making low and high voltage capacitors. |
| September 12, 2020 |
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New DIY multi-range gauss/mT meter for measuring magnetic fields. |
| February 3, 2020 |
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Added more tips and tricks page for getting your crystal radio to work. |
| September 28, 2018 |
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How to convert an ATX/computer power supply to one you can use, including with USB. |
| August 31, 2018 |
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How to make a zoetrope, a simple and fun to make animation demonstration. |
| July 26, 2018 |
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Downloadable templates for corona motor (as requested) and pinhole camera at new RimstarOrg store. |
| June 30, 2018 |
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Generating hydrogen using an electrolyzer for filling a balloon. |
| May 31, 2018 |
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Added a video on the poster board pinhole camera, including more tips for using it. |
| May 20, 2018 |
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How to make a pinhole camera from a single sheet of poster board. |
| April 24, 2018 |
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Details added about power when using servo motors with a Raspberry Pi and a Maestro board. |
| April 18, 2018 |
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How to make a coil gun using an electric fly swatter. |
| March 31, 2018 |
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Very useful 3D printed magnetic holder for helping hands I came up with. |
| March 7, 2018 |
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By request, added a schematic to the Tesla coil page. |
| February 28, 2018 |
|
Created and added a detailed video on how a Wimshurst machine works. |
| February 1, 2018 |
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Added a video about my CR-10 3D printer: how it works, setting up, stuff printed. |
| January 24, 2018 |
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My amazing CR-10 3D printer, a useful tool for future projects. |
| December 22, 2017 |
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How to control a servo motor using a Raspberry Pi and a Maestro board. |
| December 3, 2017 |
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How to make a USB power cable - good for powering electronics projects. |
| November 20, 2017 |
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Make a gauss meter to detect magnetic fields and their polarity. |
| November 13, 2017 |
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Simple to make LED flashlight, the RattleGen. |
| November 4, 2017 |
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By request, added some dimensions for making the tomato can Stirling engine. |
| October 31, 2017 |
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New page all about working with pin headers when making circuit boards. |
| October 26, 2017 |
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More details about calculating the area on the coil design page. |
| October 19, 2017 |
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Added Visual Studio for Windows support to the backpropagation neural network example. |
| September 21, 2017 |
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Completely rewrote the page on attaching BB-8's head due to many improvements. |
| August 12, 2017 |
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Ion wind rotor - how-to-make and demonstrations. |
| July 23, 2017 |
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Electronic circuit on a potato chip - a macrochip instead of a microchip. |
| July 11, 2017 |
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Details of a 500kV Van de Graaff generator. |
| July 3, 2017 |
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How ion propulsion works in lifters and ionocraft. |
| June 19, 2017 |
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New page that answers what ground is, household ground in this case. |
| June 4, 2017 |
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Replaced the remote control for BB-8 with an Android phone app Bluetooth one. |
| May 21, 2017 |
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Major enhancements to the section on neural network frameworks and services. |
| May 9, 2017 |
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Added how to find the dimensions the orange circles on BB-8's ball. |
| May 6, 2017 |
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Added new page about my curie temperature motor. |
| April 26, 2017 |
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Added a video showing the LC circuit resonance in action and doing example calculations. |
| September 28, 2016 |
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New capacitance calculators page for parallel plate and crylindrical caps. |
| July 2, 2017 |
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Added a video about detailing, lighting and painting BB-8. |
| March 24, 2017 |
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Added more calculators to the page about LC resonant circuits. |
| March 11, 2017 |
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How to connect to a Raspberry Pi via WiFi/wireless. |
| March 5, 2017 |
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Added a video of the Pepper's ghost in action along with how-to-make instructions. |
| February 28, 2017 |
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Pepper's ghost on a smartphone. |
| February 22, 2017 |
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How to connect a Raspberry Pi to a modem via Ethernet. |
| February 8, 2017 |
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New Raspberry Pi section begun - How to connect to a Pi directly. |
| January 21, 2017 |
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Added to and organized the electronic symbols page. |
| January 14, 2017 |
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By request, added dimensions for the gravity light's wooden frame. |
| December 14, 2016 |
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Added demonstrations of loading and saving the neural network to the backpropagation example. |
| December 10, 2016 |
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Added more tips for making Kelvin water droppers. |
| December 6, 2016 |
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How to grow a large crystal from a small seed crystal. |
| November 25, 2016 |
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Big gyroscopes using vinyl records and a gyroscopic precession demonstration. |
| November 21, 2016 |
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Added full details of detailing, lighting and painting BB-8. |
| November 13, 2016 |
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BB-8's now painted! Animated GIF uploaded of it in action. |
| November 1, 2016 |
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New video about designing a coil for a specific inductance. |
| October 22, 2016 |
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New page on coil design and inductance, including an inductance calculator. |
| October 3, 2016 |
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Added inductors/coils and transformers to the electronic symbols page. |
| September 28, 2016 |
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New electronics page about LC resonant circuits. |
| September 21, 2016 |
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Added the schematic for the Cube flyback high voltage power supply. |
| September 20, 2016 |
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New video - more demos and making measuring voltage for my smoke precipitator. |
| September 14, 2016 |
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By request I did voltage measurements for my electrostatic smoke precipitator. |
| September 4, 2016 |
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How to remove the motor and chuck from a cordless drill. |
| August 28, 2016 |
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Added a list of the parts I had to buy for my BB-8 (v2) droid, giving an idea of the cost. |
| August 23, 2016 |
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Added a video on the IMU/gyro for my BB-8 (v2) droid and demoing the result. |
| August 12, 2016 |
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Added an IMU/gyro to help stabilize my BB-8 (v2) droid. |
| August 7, 2016 |
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Added main neural network overview page: what are they, examples, libraries, ... |
| July 24, 2016 |
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Neat demonstration of lightning in a bottle. |
| July 17, 2016 |
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How to make a spiral coil for a small Tesla coil. |
| July 10, 2016 |
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Making BB-8 (v2) - Part 3 video showing how I reattached the head to the new fiberglass ball. |
| July 5, 2016 |
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Added a page with the BB-8 droid's dimensions to help anyone making one. |
| June 18, 2016 |
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Added a low friction high voltage test rig. |
| June 11, 2016 |
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Added a how to make an ornithopter video. |
| June 5, 2016 |
|
Curie temperature experiment - demonstration and the science. |
| May 30, 2016 |
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By request, made BB-8 (v2)'s 3D model available for download. |
| May 21, 2016 |
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New - ornithopter, a wing flapping flying machine. |
| May 15, 2016 |
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Enhanced and moved the digital scale page to here. |
| May 9, 2016 |
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How I added three layers of fiberglass to the BB-8 droid's ball. |
| April 22, 2016 |
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Added a video explaining and demonstrating the backpropagation neural network. |
| April 14, 2016 |
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Added the ability for you to try the neural network yourself! |
| April 9, 2016 |
|
Added parts list and assembly diagram for BB-8's drive electronics. |
| April 3, 2016 |
|
Added a neural network software libary I wrote for people to play with. |
| March 30, 2016 |
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Added piezo buzzer receiver circuit diagram for wireless transmission of electricity. |
| March 20, 2016 |
|
New - How to make a bottle rocket. |
| March 8, 2016 |
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Moved lifter/ionocraft pages to here. |
| February 27, 2016 |
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Added new BB-8 (v2) droid video showing it in action and part 1 of making it. |
| February 21, 2016 |
|
New rollers for BB-8 (v2) and STL files for 3D printing BB-8's gears. |
| February 15, 2016 |
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How I added magnets to the BB-8 droid so the head can stay on. |
| February 7, 2016 |
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New tips and tricks page for getting your crystal radio to work. |
| January 30, 2016 |
|
New page all about BB-8's drive electronics and
a major reorganizing of and additions to all BB-8 (v2) pages. |
| January 25, 2016 |
|
The design and making of my BB-8's RC receiver to Arduino converter circuit. |
| January 15, 2016 |
|
By request, I added a section about where to get piezoelectric crystals. |
| December 27, 2015 |
|
Added a video of my BB-8 (v2)'s drive system inside the bottom of the ball. |
| December 13, 2015 |
|
Motors, batteries, gears, ... added to the BB-8 droid (v2). |
| December 7, 2015 |
|
Progress made on BB-8 droid (v2) - working motor drive system. |
| November 27, 2015 |
|
Photoelectric effect science experiment. |
| November 17, 2015 |
|
Added a parts list and more making details for the DIY laser communicator. |
| November 15, 2015 |
|
New how-to-make page for my big Stirling engine and
an excellent working Stirling engine from someone in Germany. |
| November 14, 2015 |
|
Added video explaining how powering using atmospheric electricity works. |
| November 7, 2015 |
|
Generating electricity from atmospheric electricity. |
| November 1, 2015 |
|
Added power and efficiency calculations to the gravity light pages. |
| October 23, 2015 |
|
Scarier sound for ScareDuino for halloween by using Adafruit's Audio FX Sound Board. |
| October 11, 2015 |
|
A ball cyclotron, including how to make it. |
| October 3, 2015 |
|
MOSFETs added to the electronic symbols page. |
| September 26, 2015 |
|
Added dimensions to the section on making a Wimshurst machine. |
| September 18, 2015 |
|
More details, including a how-to video on how the BB-8 droid (v1) was made and
added more details about the homemade amplifier for my laser communicator. |
| September 12, 2015 |
|
My first homemade BB-8 droid from the new Star Wars movies. |
| September 10, 2015 |
|
Started a gravity light gallery. More homemade gravity lights wanted! |
| September 5, 2015 |
|
New page devoted to Wimshurst machines in general. |
| August 28, 2015 |
|
Sunflower heat engine now running in sunlight... plus a how-it-works video. |
| August 23, 2015 |
|
New sunflower heat engine using a coffee bag. |
| August 13, 2015 |
|
Got much better sound from my laser communicator and photoresistor setup. |
| August 8, 2015 |
|
New page on using my laser communicator to transmit to a photoresistor. |
| August 1, 2015 |
|
New page on how to make flat plate capacitors for Tesla coils. |
| July 26, 2015 |
|
How to make an alcohol stove using soda cans. |
| July 12, 2015 |
|
Added Hero's steam engine video - making it and showing it in action. |
| July 2, 2015 |
|
Very easy to make steam engine - Hero's steam engine. |
| June 27, 2015 |
|
New video on how I made the laser communicator. |
| June 21, 2015 |
|
DIY/homemade laser communicator. |
| June 12, 2015 |
|
Making DIY/homemade capacitors for the small spark gap Tesla coil. |
| June 6, 2015 |
|
How to transmit sound using sunlight - the photophone. |
| May 30, 2015 |
|
Added a photo and video of powering a TEA laser using a Wimshurst machine. |
| May 22, 2015 |
|
Making a spiral primary coil for the small spark gap Tesla coil. |
| May 16, 2015 |
|
Detailed video on how to make the small spark gap Tesla coil. |
| April 14, 2015 |
|
By popular request... a small spark gap Tesla coil. |
| April 6, 2015 |
|
Piezoelectric electrostatic generator made from a BBQ ignitor. |
| March 30, 2015 |
|
Extracting chlorophyll from spinach and fluorescing it with sunlight and my TEA laser. |
| March 15, 2015 |
|
Fun with arduino and a speech synthesizer. |
| March 14, 2015 |
|
Fuses and meters added to the electronic symbols page. |
| March 11, 2015 |
|
Added a schematic and more details to the DIY 24 volt power supply page. |
| March 5, 2015 |
|
Powering a Compact Fluorescent Light (CFL) using an electric fly swatter. |
| February 20, 2015 |
|
Using an electric fly swatter as a high voltage source. |
| February 11, 2015 |
|
Added details about making a Stirling engine's displacer using steel wool. |
| February 6, 2015 |
|
How-to-Make video for wireless transmission of electricity and a calculation spreadsheet. |
| January 26, 2015 |
|
Made a video explaining for how the triboelectric effect works. |
| January 22, 2015 |
|
New page about the triboelectric effect and with the triboelectric series table. |
| January 1, 2015 |
|
Added a transistor protection section to the 30kV high voltage power supply page. |
| December 21, 2014 |
|
Fun with DIY wireless transmission of electricity. |
| December 13, 2014 |
|
Added a test for the effect on water conductivity on the Kelvin water dropper. |
| December 7, 2014 |
|
How to make a pinhole camera for viewing the sun or just having fun. |
| November 15, 2014 |
|
How I made and how to make the Arduino controlled skull, including the source code. |
| November 8, 2014 |
|
ScareDuino, my shoulder mounted, Arduino controlled skull. |
| October 17, 2014 |
|
Make a hologram with a plastic pyramid - includes Princess
Leia and pterodactyl holograms. |
| September 28, 2014 |
|
Joule thief circuit powering a clock, instead of the usual LED or CFL. |
| August 29, 2014 |
|
Many more details about the enhanced gravity light (v2). |
| August 22, 2014 |
|
Enhanced gravity light (v2) that runs longer and gives more light. |
| August 9, 2014 |
|
New video showing how the corona motor (v2) was made. |
| August 3, 2014 |
|
More powerful corona motor (v2) and explanation for how a
corona motor works. |
| July 21, 2014 |
|
More symbols added to the
electronic symbols for schematics page. |
| July 4, 2014 |
|
New resource page with
electronic symbols and a video on how to read schematics |
| June 28, 2014 |
|
New video showing step-by-step
how I made the nitinol wire inchworm |
| June 22, 2014 |
|
Made a
nitinol wire inchworm that walks! |
| June 15, 2014 |
|
Huge update to using a
PC monitor as a high voltage power supply |
| June 8, 2014 |
|
Experimenting with
nitinol wire (shape memory alloy) |
| May 19, 2014 |
|
Lots more details to
the multiplier section of my how-to-make a 30kV high
voltage power supply page |
| May 17, 2014 |
|
Video on how to read music and to adapt it to the
555 timer music player and the
straw trombone |
| May 12, 2014 |
|
New high voltage power supply with easier to find parts |
| April 19, 2014 |
|
Enhanced the gravity light to power three LEDs and run for 8 minutes |
| April 14, 2014 |
|
Gravity light (homemade) that powers an LED using a slowly falling mass |
| April 6, 2014 |
|
Making music instruments with drinking straws - a trombone and a trumpet |
| March 23, 2014 |
|
Moving things with sound - Helmholtz resonators |
| March 10, 2014 |
|
Cleaning up smoke with a DIY electrostatic/smoke precipitator! |
| March 2, 2014 |
|
Added Van de Graaff generator FAQ (Frequently Asked Questions) page. |
| February 13, 2014 |
|
Added laser diodes to Star Wars TIE Fighter and Star Trek Enterprise models. |
| February 9, 2014 |
|
The mysterious ball bearing motor - how to make one and how it works. |
| February 2, 2014 |
|
Video about fixing my 30kV high voltage power supply. |
