Coldwaterjohn's photos

An Old Curiosity...my father's Abney Level

16 Jan 2011 189
The Abney level was invented by Sir William de Wiveleslie Abney (Born 24 Jul 1843 Died 3 Dec 1920) who was an English astronomer and chemist best known for his pioneering of color photography and color vision. Abney invented this instrument under the employment of the School of Military Engineering in Chatham, England in the 1870s. It is described by W. & L. E. Gurley as an English modification of the Locke hand level, noting that it gives angles of elevation and is also divided for slopes, as 1 to 2, 2 to 1, etc. Since the main tube of this instrument is square, it can be applied to any plane surface. The clinometer scale is graduated to degrees, and read by vernier to 5 minutes. This one was used for surveying, in the laying out and extension of tea estates in Sylhet in the 1920s.

Amur Leopard

Amigo saying hello.

14 Dec 2012 156
Amigo

Amaryllis Sequence

09 Feb 2013 174
Amaryllis seem to open as you watch. The initial growth of the stem is like watching a beanstalk sprout!

Amaryllis in full bloom - Day Eleven

16 Feb 2012 207
Finally there!

Amaryllis Day Twenty-Two

15 Feb 2013 168
Amaryllis Day Twenty-Two

Amaryllis Day Seventeen (2)

10 Feb 2013 197
Amaryllis Day Seventeen (2)

Amaryllis Day Seventeen (1)

10 Feb 2013 203
Amaryllis Day Seventeen (1)

Amaryllis Day Four

09 Mar 2012 196
Second blossom about to open on same bulb...

Amaryllis Day Eighteen (2)

11 Feb 2013 149
Amaryllis Day Eighteen (2)

Amaryllis Day Eighteen (1)

11 Feb 2013 201
Amaryllis Day Eighteen (1)

Amaryllis budding

12 Feb 2012 161
Using black reflector as background

Amaryllis about to flower

Amaryllis - time lapse

Amaryllis - Day Twenty-three

16 Feb 2013 198
Amaryllis - Day Twenty-three

Amaryllis - Day Ten

15 Feb 2012 198
When all four buds open I promise the series will stop!

Amaryllis - Day Six

11 Mar 2012 185
Taken against a drawn white blind with the sun behind it, using flash on aperture setting...

Amaryllis - Day Seven


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