Tables
Created | Updated Aug 9, 2006
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1st version, the one with a 'gap' (actually two gaps)
| Analysis: per litre of Scottish Mineral Water | |
|---|---|
| less than 0.005mg | aluminium |
| 80mg | bicarbonate |
| 26mg | calcium |
| 6mg | chloride |
| under 0.1mg | fluoride |
| 6mg | magnesium |
| less than 4mg | nitrate |
| under 0.1mg | potassium |
| 7mg | sodium |
| 7.7mg | sulphate |
| Calories: | 0 |
| pH at source: | 7.4 |
2nd version, the one with the top gap removed
| Analysis: per litre of Scottish Mineral Water | |
|---|---|
| less than 0.005mg | aluminium |
| 80mg | bicarbonate |
| 26mg | calcium |
| 6mg | chloride |
| under 0.1mg | fluoride |
| 6mg | magnesium |
| less than 4mg | nitrate |
| under 0.1mg | potassium |
| 7mg | sodium |
| 7.7mg | sulphate |
| Calories: | 0 |
| pH at source: | 7.4 |
3rd version, the one with the bottom gap removed
| Analysis: per litre of Scottish Mineral Water | |
|---|---|
| less than 0.005mg | aluminium |
| 80mg | bicarbonate |
| 26mg | calcium |
| 6mg | chloride |
| under 0.1mg | fluoride |
| 6mg | magnesium |
| less than 4mg | nitrate |
| under 0.1mg | potassium |
| 7mg | sodium |
| 7.7mg | sulphate |
| Calories: | 0 |
| pH at source: | 7.4 |
4th version, the one with the both gaps removed
| Analysis: per litre of Scottish Mineral Water | |
|---|---|
| less than 0.005mg | aluminium |
| 80mg | bicarbonate |
| 26mg | calcium |
| 6mg | chloride |
| under 0.1mg | fluoride |
| 6mg | magnesium |
| less than 4mg | nitrate |
| under 0.1mg | potassium |
| 7mg | sodium |
| 7.7mg | sulphate |
| Calories: | 0 |
| pH at source: | 7.4 |
A work in progress
Typewriters
Christopher Latham Sholes (1819-1890) invented the first practical modern typewriter in 1866. The type-bar system and the 'universal keyboard' were the machine’s novelty, but the keys jammed easily.
To solve the jamming problem, the keys for letters commonly used together were 'separated' (to slow down typing), resulting in today's standard QWERTY keyboard.
http://inventors.about.com/library/inventors/bltypewriter.htm
Tabs/Tables: Historical relationship to furniture
The name exchequer comes from a chequered tablecloth (based on the abacus) that was used from about the year 1110 for calculating the accounts of each local Sheriff in England, who collected and spent money on behalf of the King or Queen.
http://www.hm-treasury.gov.uk/about/about_history/about_history_history.cfm
The Tabulating Machine
The 1880 U.S. Census took seven years to 'tabulate'. Because of immigration leading to a greater population, the same approach for the 1890 census would have taken thirteen years to collate!
Herman Hollerith came up with the idea to use punch cards, like those used throughout computing until the 1980s (some countries/states still use them today!), enabling the 1890 census to be completed in 18 months, including a 'double-check'.
His company became a part of International Business Machines (IBM), which developed faster and faster tabulators until the invention of the electronic computer in the 1940s
http://en.wikipedia.org/wiki/Tabulator
