20 shillings
Low level flights
Circling the pond
Coming in for a landing (Explored)
Spring has arrived
The colors of spring
Blue beauty
Fly by
Painted Turtles
Making waves
Having a nibble (Explored)
Posing with the daffodils
Stepping out
You talking to me?
Stay away from my girl
Canada goose in flight (Explored)
Portrait of a duck (Explored)
Egyptian Door
Impressions of Monet
Enthralled (Explored)
Portrait of a Canada Goose
Bottoms up
Showing some shoulder
Leap of faith
Going it alone
Running on the plains
Grabbing the carnucles
Side kick
Showing off to the combantants
Ouchie!
Flying wing strike
Above the fray
Mr. Mallard takes a stroll
Canada Goose
Blue jay, red leaves
White-breasted nuthatch
Glass elephant
Mighty links (Explored)
Safety in numbers
Testing the water
Watching the crossing
Leaping topi
About to be eaten
Reaching the other side
The race to cross
1/60 • f/4.5 • 24.0 mm • ISO 4000 •
Canon EOS 70D
EF24-105mm f/3.5-5.6 IS STM
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Pure electricity (Explored)
The Saturday Self-Challenge: Electricity
"Jacob's ladder, more formally known as a high-voltage travelling arc, is...well...a high-voltage travelling arc. When the voltage difference between two electrodes exceeds the breakdown voltage, a spark forms. In this case, the spark forms between the vertical wires (the electrodes) near the bottom, where they are closest. The spark rapidly changes to an electric arc (a matter of nomenclature at this point, as a spark is generally a very quick and temporary occurrence while an arc is a sustained discharge). The arc heats and ionizes the air in its immediate vicinity. The ionized air maintains the arc, but the heat causes the ionized air to rise, thus the arc rises with the heated and ionized air, becoming less and less stable as it climbs and the separation between the wires increases, until the arc finally breaks. Then it starts again at the base."
www.seattleu.edu/scieng/physics/physics-demos/electricity-and-magnetism/jacobs-ladder
TSSCIMG 4242
"Jacob's ladder, more formally known as a high-voltage travelling arc, is...well...a high-voltage travelling arc. When the voltage difference between two electrodes exceeds the breakdown voltage, a spark forms. In this case, the spark forms between the vertical wires (the electrodes) near the bottom, where they are closest. The spark rapidly changes to an electric arc (a matter of nomenclature at this point, as a spark is generally a very quick and temporary occurrence while an arc is a sustained discharge). The arc heats and ionizes the air in its immediate vicinity. The ionized air maintains the arc, but the heat causes the ionized air to rise, thus the arc rises with the heated and ionized air, becoming less and less stable as it climbs and the separation between the wires increases, until the arc finally breaks. Then it starts again at the base."
www.seattleu.edu/scieng/physics/physics-demos/electricity-and-magnetism/jacobs-ladder
TSSCIMG 4242
Gudrun, Wierd Folkersma, RHH, Malik Raoulda and 15 other people have particularly liked this photo
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