# Richard Lightfoot

## 9 Flips | 2 Magazines | 6 Likes | 2 Following | 2 Followers | @richlight | Keep up with Richard Lightfoot on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Richard Lightfoot”

### 20 Important URLs That Every Google User Should Know

20 Important URLs That Every Google User Should Know<p>Google is much more than a search engine. Google offers dozens of interesting services in Google …

### How the Weather Affects Conductors

Sag<p>Notice how a conductor is strung between poles. It is not pulled tight; it sags. In hot weather it sags even more than in cold weather. <b>Consider</b> …

### Network Protection And Automation Guide

Protective Relays, Measurement and Control<p>Since 1966, the <b>Network Protection and Automation Guide</b> (formerly the Protective Relays Application Guide) …

### Calculation of Size of Transformer, Fuse and Circuit Breaker

Size of Circuit Breaker & Fuse are as per NEC 450.3<p><b>This MS Excel spreadsheet calculates the following:</b><p>Size of Circuit Breaker on Primary side of …

### SolarReserve Wants To Build 600 MW Solar Power Plant In Saudi Arabia

<b>Published on</b> July 8th, 2013 | <i>by Giles Parkinson</i><p>1<p>July 8th, 2013 by <b>Giles Parkinson</b><p><i>This article first appeared on RenewEconomy (image added).</i><p>Image …

### Calculation Example of Small Photovoltaic (PV) Residential Stand-Alone System

Example<p><i>– Array Size</i>: 10, 12-volt, 51-watt modules; Isc= 3.25 amps, Voc= 20.7 volts <i><br>– Batteries:</i> 800 amp-hours at 12 volts <i><br>– Loads:</i> 5 amps DC and …

### Self Freezing Coke Video By Grant Thompson Has Completely Blown Our Minds

"Grab a bottle of room temperature soda, and start shaking it violently." That's the first bit of instruction on Grant Thompson's incredible self freezing Coke (or any other soda) video.<p>Look guys, we were never big science buffs in school, but that's probably because no one ever presented the …