Beginners Guide Beginners Guide to Electronics by Martin T. Pickering Last updated on November 23, 2008 This book gives simplified explanations of how some electronic components work in a circuit. I first became interested in electronics when I was age 10 (as long ago as 1961). ©2008 Martin T. What's the Difference between A.C. and D.C.? How does a Resistor Work? All the colours for 5% tolerance resistors: How do Diodes Work? How do Transistors Work? Abbreviations Although we use the Greek symbol Omega W to represent “Ohms” it is frequently written as “R”. How does a Capacitor Work? What does a capacitor look like? How do Inductors Work? The Relay Bread Board and building a LED Flasher Building the LED Flasher Astable Multivibrator using two transistors
The Shelf Life of Food Foods unopened, COUNTER/PANTRY REFRIGERATOR FREEZER uncut or uncooked unless stated otherwise 1 DAY 1 MONTH 1 DAY 3 MONTH 1 MONTH 1 YEAR MACARONI & CHEESE 3-5 days PIZZA 3-4 days SALAD WITH DRESSING 3-5 days SANDWICHES 1-2 days SPAGHETTI & MEAT BALLS 1-2 days What's the Deal with Expiration Dates? The little dates you find food packages refer to quality, not safety, if properly stored, you can eat food beyond its expiration. It is always best to use your eyes and nose to check for possible food safety issues USE-BY & BEST BEFORE Provided voluntary by the manufacturer to let you know how long the product will remain at its absolute best. EXPIRES ON Found on perishables like meat and diary. SELL-BY This is usually found only on baby food or other products the government regulates with regard to dating. DESIGN Lindasy snow osborn HAPPY EATING FOREVER visual.ly
Engineering ToolBox I've Been Using Evernote All Wrong. Here's Why It's Actually Amazing Arduino Tutorial - Lesson 5 We've done a lot so far, blinking lights, printing messages...all of that stuff is output: signals coming from the Arduino. The next step is to start playing with input, with the Arduino responding to outside events. In this lesson we will begin with the most basic kind of input, a push-button switch! You're probably familiar with switches, there's tons of them in your house. On the left, the switch is open and no current flows. (thanks wikipedia!) In this photo, you can see the internals of a light switch. Light switches are great but we need something smaller. These little switches are a 1/4" on each side, cost about 25 cents, and can plug directly into a breadboard. Normally, the two wires are disconnected (normally open) but when you press the little button on top, they are mechanically connected. To get the buttons to sit better in the protoshield, you may want to straighten out the legs (just squish them with a pair of pliers) so that they look like the button on the left. Fig 5.2
How to Build Your Own Syncing RSS Reader with Tiny Tiny RSS and Kick Google Reader to the Curb BeagleBoard.org - default Hobby Engineering Home Page Blog Archive » The greatest electronics book ever written? Getting Started in Electronics , by Forrest M. Mims, III. is a spectacular introduction to the world of electronics. The entire book is formatted like an engineering notebook with handwritten notes on every page. My father gave me this book when I was six or seven years old along with a 25 watt soldering iron from Radio Shack. Forrest Mims himself is an interesting individual and has led a prolific career as a writer and amateur scientist. The book even includes a handy guide to help you learn How to Solder! Thankfully, it turns out that this fantastic book is still in print . In my opinion, this is probably the greatest introductory book about electronics ever written. Happy 25th, Getting Started in Electronics! Like this: Like Loading... Tags: books, Books and Resources, Electronics, Forrest Mims, Radio Shack