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The first web accessibility guideline was compiled by Gregg Vanderheiden and released in January 1995, just after the 1994 Second International Conference on the World-Wide Web (WWW II) in Chicago (where Tim Berners-Lee first mentioned disability access in a keynote speech after seeing a pre-conference workshop on accessibility led by Mike Paciello).
a. ^.NET Framework 1.0 is an integral component of Windows XP Media Center Edition and Windows XP Tablet PC Edition.Installation CDs for the Home edition and the Professional edition of Windows XP SP1, SP2 or SP3 come with .NET Framework 1.0 installation packages.
Although neutrinos are Standard Model particles, they are listed separately because they are ultra-relativistic and hence behave like radiation rather than like matter. The density of ordinary matter, as measured by Planck, is 4.8% of the total critical density or 4.08 × 10 −28 kg/m 3. To convert this density to mass we must multiply by ...
19 F NMR chemical shifts in the literature vary strongly, commonly by over 1 ppm, even within the same solvent. [5] Although the reference compound for 19 F NMR spectroscopy, neat CFCl 3 (0 ppm), [6] has been used since the 1950s, [7] clear instructions on how to measure and deploy it in routine measurements were not present until recently. [5]
It was created late, perhaps during a short re-advancement of the glacier, before it began to melt and form Lake Maumee. [ 9 ] Remnant old-growth oak tree in Dover Township, reminiscent of the historical Council Oak in Winameg, Ohio, and typical of the grand flora once abundant in the Oak Openings Region [ 10 ] [ 11 ]
The Standard Model posits that elementary particles derive their masses from the Higgs mechanism, which is associated to the Higgs boson. It is hoped that further research into the reasons for the top quark's large mass of ~ 173 GeV/ c 2 , almost the mass of a gold atom, [ 83 ] [ 85 ] might reveal more about the origin of the mass of quarks and ...
Diatoms form a (disputed) phylum containing about 100,000 recognised species of mainly unicellular algae. Diatoms generate about 20 per cent of the oxygen produced on the planet each year, [ 93 ] take in over 6.7 billion metric tons of silicon each year from the waters in which they live, [ 159 ] and contribute nearly half of the organic ...
The Exxon Valdez oil spill was a major environmental disaster that occurred in Alaska's Prince William Sound on March 24, 1989. The spill occurred when Exxon Valdez, an oil supertanker owned by Exxon Shipping Company, bound for Long Beach, California, struck Prince William Sound's Bligh Reef, 6 mi (9.7 km) west of Tatitlek, Alaska at 12:04 a.m.