HEATKEYS

Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test

Test your internet speed with the broadband speed test experts. Test upload & download speed, schedule tests, log your connection & share results.

Calculators online for finance, math, algebra, trigonometry, fractions, physics and time. Use an online calculator, search or suggest a new calculator that we can build for free online use. Conversions and calculators to use online for free. Formerl...

Test your Internet line quality to locations around the world with this interactive ping test

SpeedGuide.net - The Broadband place. Everything about cable modems, DSL & Satellite with large section on free speed optimizations, general Windows tweaks, tips and fixes for boosting system performance.

A resource containing many useful calculators and conversions

Arduino Forum - Index

Flow Meter Directory. Flowmeter Manufacturers ultrasonic meters, mass flow controllers, natural gas flowmeters, orifice plate sizing, water meters, air flow meter and flow measurement suppliers

Physics homework help is available through examples of solved physics problems. Our physics tutors provide expert physics help.

This website contains information about my personal interests, especially in the areas of energy and sustainabiliy, and also my professional scientific research interests and scientific consulting business and expertise.

All kinds of brain tests. Reaction time, music trainer, sketch group, and more.