Science and Technology
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Measurement and Calculation
A Dictionary of Units
Most current units of measurement (and a few of historical interest), together with conversion factors needed to change them into an S I. unit
http://www.ex.ac.uk/ cimt/ dictunit/ dictunit.htm
Compound Interest Calculator
Calculate the total, principal, years or rate.
http://www.1728.com/ compint.htm
Convert Plus
Converts area, capacity and volume, circular measure, computer storage, currency, distance and length, energy and work, fuel consumption, power, pressure, speed, temperature, time, torque, mass and weight
http://convertplus.com/ en/
ConvertIt.com
Measurement converter, scientific and mathematical calculators, world time zones and clock. Also has a currency converter and financial calculator, and you can use currencies within the measurement converter.
http://www.convertit.com/
Footrule.com
A large collection of converters, units and measures and data tables.
http://www.footrule.com
Measurement
A dictionary of all types of measurement
http://www.unc.edu/ ~rowlett/ units/ index.html
Online Conversion
Convert almost any measurement to another.
http://www.onlineconversion.com/
Streetmap.co.uk Grid Conversion
Enter postcode, Ordnance Survey grid reference, Landranger grid or latitude and longitude and convert your reference to the other coordinates
http://www.streetmap.co.uk/ streetmap.dll?GridConvert
Time Zone Converter
Find out the time anywhere in the world.
http://www.timezoneconverter.com/
Timeanddate.com
Time zones and time converter, sun and moon calculators, calendars for any year, date calculators
http://www.timeanddate.com/ worldclock/
General | Astronomy | Biology, Natural History, Zoology | Building | Chemistry, Chemicals and Chemical Technology | Engineering | Geography | Geology | Mathematics | Measurement and Calculation | Physics | Soil Science | Standards


