View allAll Photos Tagged Filaments
Explore Apr 26, 2011 #149
Ever heard of a Handkerchief Tree? This is the nickname given to the trees of the genus Brownea because they produce drooping tassels of young leaves that look like limp linen handkerchiefs. Most Handkerchief Trees generate beautiful fiery red blossoms that produce lots of nectar for their pollinators... hummingbirds.
During the day, the mature leaves droop over the flowers to protect them from the hot sun. Handkerchief Trees are native to the rainforests of South America but grow well here in South Florida. A slow-growing, small tree with very large heads of brilliant, exotic red flowers.
Brownea coccinea subsp. capitella, Brownea capitella, Rose of Venezuela, Scarlet Flame Bean Brownea coccinea subsp. capitella, Caesalpinioideae / Caesalpiniaceae
Brownea sp., Handkerchief Tree, Fabaceae
Windows to the Tropics, Fairchild Tropical Botanic Garden, Miami FL
Camera: Leica M Monochrom
Lens: SUMMILUX-M 1:1.4/50 ASPH. E46 4203500
Filter: 46S R1 Professional
Retouch: Lightroom 5.7
Option: Leica Magnifier M1.4x
A hand drawn sketch by Dr. Christensen from the University of Michigan Medical School for the laboratory sessions he conducted in the Medical Histology Course for first year medical students. The drawings were done with felt markers on a white board in the lab during the morning of the day a particular topic was being studied in the course. When the laboratory session began, the drawings were briefly discussed, and they could be seen by the students throughout the laboratory period.
Download the entire collection by visiting openmi.ch/HistologyDrawings.
Learn more about Dr. Christensen by visiting www-personal.umich.edu/~akc/
Image courtesy of Dr. A. Kent Christensen under a Creative Commons license: BY-SA
Rectifier and dual triode vacuum tubes on the job since 1963. The glowing filaments heat a cathode sleeve that boils off electrons that are then captured by a charged plate. For the rectifier, they can only go in one direction, and AC is converted to DC. For the dual triode, control grids fashioned like a finely wound fence are interposed whereby a small change on the grids cause a large change on the plates, and amplification is achieved.
Zoom to explore.
Canon FD 100mm f/4 macro, taken at f/11, long exposure on tripod.
Inspired by beetles and fabricated by a robot, this striking garden pavilion kicks off the Engineering Season.
V&A.
Another of my favorites from The Secret Lives of Seahorses Exhibit at the Monterey Bay Aquarium. The Weedy Seadragon together with the Leafy Seadragon (below) are the two known species of the Seadragon. They live among the seaweed and seagrasses along rocky reefs using the seaweed-like filaments attached to their bodies as a means of disguise. They are found along the coasts of western and southern Australia.
Hey there, little light bulb.
Look beneath your sunny glow.
There lie a dozen empty flower pots
filled with seeds waiting to grow
A macro look at the stem part of the stamen called the filaments. At the top of these stems are the anthers which produce the pollen.
I like the green color of these filaments, as well as the fuchsia of the petals...
Solar prominence, sunspots and filaments. 21st September 2014. False Colour
Lunt LS60 Ha solar scope
Skyris 618C camera, Televue Powermate 2.5x
AS!2, Registax, PS CS6
Enormous Solar Prominence captured by STEREO Spacecraft
The twin STEREO spacecraft (called “Behind” and “Ahead” denoting their relative positions in space), now almost 120 degrees apart, captured this large and dramatic prominence eruption over about a 30-hour period between Sept. 26-27, 2009. Prominences, called filaments when they are viewed against the surface of the Sun, are clouds of cooler gas suspended above the Sun’s surface by magnetic forces. This erupting prominence was large enough that both spacecraft were able to observe it for hours on end, one of the first times that has occurred.
From the Behind perspective (on left) the long filament, darker than the Sun’s surface, can be seen rising up and then breaking away, spreading out above most of the Sun’s surface. As seen from the Ahead spacecraft (right), the filament is seen in profile and is therefore called a prominence. The very large cloud lifts up, breaks away, and heads out into space. This is one of the most spectacular eruptive prominences STEREO has observed.
www.nasa.gov/mission_pages/stereo/multimedia/filament_eru...
Main STEREO Page:
www.nasa.gov/mission_pages/stereo/main/index.html
Credit: NASA / Goddard Space FLight Center