User:Gregorydavid

Picture of the day[edit]

An oblique shock is a shock wave that, unlike a normal shock, is inclined with respect to the direction of incoming air. It occurs when a supersonic flow encounters a corner that effectively turns the flow into itself and compresses. This photograph shows an oblique shock at the nose of a Northrop T-38 Talon aircraft, made visible through Schlieren photography.Photograph credit: NASA & US Air Force (J.T. Heineck, Ed Schairer, Maj. Jonathan Orso, Maj. Jeremy Vanderhal)

Archive – More featured pictures...

Question of the day[edit]

Will Wikipedia ever be what it is going to be?
Are Wikipedians divided into "exoteric", which are under review, and "esoteric", which have performed well enough to be admitted into the "inner" circle?

Uncyclopedia[edit]

Follow link to see: Uncyclopedia's logo, which is made from a potato named Sophia to parody Wikipedia's globe logo Uncyclopedia's

My IP is SAIX[edit]

My IP is Telkom South Africa's SAIX.

Previous blocked IP addresses:
- 198.54.202.234
- 196.25.255.210

Portal matrix[edit]

User:Kevin baas/box template1

from: User:SeanMack see: User:SeanMack/sandbox3

Tip of the day[edit]

Tip of the day...

Designing your user page

User page design can be onerous and time consuming. Especially when you don't have a clue where to begin.

The User page design guide provides advice on developing a user page, and sample design elements that you can copy and paste to speed up the process.

Prior tip – Tips library – Next tip

My Wiki toolbox[edit]

Mapping[edit]

Map projection[edit]

Map projection

Mercator projection[edit]

Mercator projection

Nautical chart[edit]

Nautical chart

Examples[edit]

Greenwich is located at 51°28′38″S 00°00′00″E / 51.47722°S 0.00000°E / -51.47722; 0.00000, a latitude and longitude of 51° 28' 38" N and 0º 0' 0" E/W (by definition).
Cape Point is located at 34°21′26″S 18°29′51″E / 34.35722°S 18.49750°E / -34.35722; 18.49750, about 2.3 kilometres (1.4 mi) east and a little north of the Cape of Good Hope on the south-west corner.
Cape Agulhas is the southernmost point in the continent of Africa. It is located at 34°49′43.39″S 20°00′09.15″E / 34.8287194°S 20.0025417°E / -34.8287194; 20.0025417, in a rural area 170 kilometres (105 mi) south-east of Cape Town. Google satellite map
Namibia border 27°00′00″S 20°00′00″E / 27.00000°S 20.00000°E / -27.00000; 20.00000, 28°00′00″S 20°00′00″E / 28.00000°S 20.00000°E / -28.00000; 20.00000 and 29°00′00″S 20°00′00″E / 29.00000°S 20.00000°E / -29.00000; 20.00000

Wikipedia:WikiProject Geographical coordinates[edit]

Wikipedia:WikiProject Geographical coordinates

The Earth[edit]

Diameter:

Equatorial 12,756.270 km
Polar 12,713.500 km
Mean 12,745.591 km

Circumference:

Equatorial 40,075.004 km
Meridional 40,007.849 km
Mean 40,041.455 km

Python[edit]

Python programming language

Popups[edit]

Wikipedia:Tools/Navigation popups
Implemented by User:Gregorydavid on 22 March 2006
User:Lightdarkness/monobook.js something to look into.

Referencing[edit]

Unencyclopedia

My Wiki sandbox[edit]

Railways

East Coast Main Line

Legend

					Edinburgh Waverley
					Musselburgh
					Wallyford
					Prestonpans
					Longniddry
					Drem
					North Berwick Line
					Dunbar
					Berwick-upon-Tweed
					Chathill
					Alnmouth
					Acklington
					Widdrington
					Pegswood
					Morpeth
					Cramlington
					Manors
					Newcastle Central
					Durham Coast Line
					Tyne Valley Line
					Chester-le-Street
					Durham
					Tees Valley Line
					Darlington
					Tees Valley Line
					Northallerton-Eaglescliffe Line
					Northallerton
					Thirsk
					York
					Hull
					Brough
					Leeds
					Wakefield Westgate

					Doncaster
					Retford
					Newark North Gate
					Grantham
					Birmingham to Peterborough Line
					Peterborough to Lincoln Line
					Peterborough
					Ely to Peterborough Line
					Huntingdon
					St Neots
					Sandy
					Biggleswade
					Arlesey
					London to Cambridge Line
					Hitchin
					Stevenage
					Hertford Loop Line
					Knebworth
					Welwyn North
					Welwyn Garden City
					Hatfield
					Welham Green
					Brookmans Park
					Potters Bar
					Hadley Wood
					New Barnet
					Oakleigh Park
					New Southgate
					Hertford Loop Line
					Alexandra Palace
					Hornsey
					Harringay
					Finsbury Park
					Northern City Line
					London King's Cross

Away user[edit]

This user is currently on vacation from Wikipedia.
Any messages left here might not be received by the user for a while.

Linking like this[edit]

Crack cocaine
(For other uses of "Ground zero", see Other uses section below)

Medal count[edit]

Template:2006 Commonwealth Games medal count {{2006 Commonwealth Games medal count}}

Portals[edit]

Wikipedia Portals exist to make browsing easier, they serve as "main pages" for many topics or areas of interest. Here are a selected few of the growing list:

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