View allAll Photos Tagged STACKABLE
I took this shot last week at one of my favorite Central Oregon locations, Sparks lake. It wasn't really much of a sunset, but as the colors and light started fading away, I caught this moment. I also got lucky that the wind had stopped at that time, making the lake look like a mirror.
10-sec. exposure, 20mm @ f/9, ISO 50, B&W circular polarizer, stacked 2 and 3 stop Lee GND filters.
Volcanic Tablelands Star Circle. Watch the movie!
The daylight effect is a result of using Picasa3's "auto contrast" feature.
The clouds added some interest to this otherwise boring foreground.
See this a bit larger, perhaps?
This image has produced some controversy. Some think I may have cheated and stacked daylight cloud images with night time star trails. I will say plainly that I did not do that. Here is the explanation:
Despite the way the shot appears, it is not a double exposure of day and night shots - it is a stack of night shots. You can see all of the shots used in the movie. The "trick" to get this brighter image was to allow Picasa3 to "auto correct" the contrast.
What is really going on, however, is that the moon rose after shooting started and created more and more illumination. The first shots with the clouds (which moved out of the image to the lower left) had very little moonlight on them. You can see where there are ragged parts of the star trails - that's because those portions were obscured by clouds.
The last single frame of the series appeared almost "day like" (only a bit darker than what you see above). The stacking process selected the brightest pixels from each frame.
© Copyright 2009, Steven Christenson
All rights reserved.
“. . . one of the Navy’s most useful helpers in fighting the U-boats is a recently perfected Diesel engine called a ‘pancake’ because its cylinders are stacked one above the other. Combined with GM-developed controllable pitch propellers, this engine has made possible a new-type subchaser with more speed, wider range, increased maneuverability – and therefore greater effectiveness. . .” [From the ad copy]
This WWII-era ad highlights a significant leap in naval engineering. While General Motors’ marketing language focused on the "pancake" moniker, the combination of the GM 16-184A Diesel engine and controllable pitch propellers fundamentally changed the performance of subchasers (specifically the PC-461 and SC classes). The engine’s vertical design saved 80% in weight, allowing for more weaponry and fuel, and it occupied only one-third the space of traditional diesels. This allowed subchasers to be faster with more range without increasing the ship’s overall size.
The controllable pitch propeller was the "secret sauce" for effectiveness against U-boats. Unlike standard propellers, these allowed the ship to change direction (forward to reverse) or speed almost instantly by tilting the propeller blades rather than waiting for the engine to change RPMs. This allowed subchasers to stay directly over a submerged U-boat during depth charge runs, a task that required precise, slow-speed handling that older engines struggled to maintain.
By optimizing the power-to-weight ratio, these subchasers could reach speeds of approximately 20–22 knots, allowing them to outrun surfaced U-boats and close the distance quickly once a sonar contact was made. Because the engines were so efficient and light, the ships could carry enough fuel to escort convoys across vast stretches of the Atlantic, whereas previous smaller craft were often tethered to coastal operations. The ship’s compact size also enabled its mass production, the “splinter fleet” that patrolled the coasts.
[Source: Google Gemini]
With five airports and even more small airfields, Air Traffic Control over Greater London is extremely complicated. Although new patterns are coming into use, one traditional way of managing traffic is to stack planes above one another so that each loses altitude bit by bit before leaving the stack to then turn on for final approach.
In this instance, with westerly wind operations, flight UA5 joined Ockham stack, one of four used for Heathrow. Traffic was not too excessive so only a couple of 5-minute circles were made, dropping down to 10,000'. From there a relatively uncommon ATC path was taken northwards over Heathrow and the River Thames before turning east and then taking a 180 degree turn to starboard over London City Airport and making a final approach to the west, basically along the River Thames and dropping into Heathrow over the legendary Myrtle Avenue (legendary to aircraft spotters that is!)
The above photo shows the aircraft leaving the bottom of the Ockham stack. Click on the link and look at the second diagram (westerly ops) for an example showing a typical day's movements www.heathrow.com/file_source/HeathrowNoise/Static/Ockham-...
P1090594 - Just for fun, what an hour to set up for one shot must have completely lost my marbles, well they certainly rolled around the counter top and floor after this see marble abstract below. Unable to get higher than three rows :)
Natural light (dull day limited sun)
SOOC
DMC G1 - Tamron 28-70mm 135-45 Close up, F16, manual focus, manual aperture
Free hand
Scavenger Challenge
2) How good is your balance? Make a precarious stack of objects and shoot before they fall.
9) Have you lost your marbles? One or many, prove you have at least one!
South Stack Lighthouse was built by Trinity House in 1809, marking a tiny islet off Anglesey at the north west tip of Wales
Built
1809
Height of Tower
28 m
Height of light above Mean High Water
60 m
Automated
1983
Electrified
1938
Optic
1st Order six panel catadioptric rotating
Character
Fl 10s
Intensity
467,000 candela
Range of light
24 NM
Region
West
South Stack Rock lies separated from Holyhead Island by 30 metres of turbulent sea, surging to and fro in continuous motion. The coastline from the breakwater and around the south western shore is made of large granite cliffs rising sheer from the sea to 60 metres.
Origins
South Stack Lighthouse was first envisaged in 1665 when a petition for a patent to erect the lighthouse was presented to Charles II. The patent was not granted and it was not until 9 February 1809 that the first light appeared to mark the rock. The lighthouse was designed by Trinity House surveyor Daniel Alexander and originally fitted with Argand oil lamps and reflectors. Around 1840 a railway was installed by means of which a lantern with a subsidiary light could be lowered down the cliff to sea level when fog obscured the main light.
On 25 October 1859 it is said that the most severe storm of the century occurred, known as the 'Royal Charter' gale; and on that and the following day over 200 vessels were either driven ashore or totally wrecked with the loss of 800 lives.The steamship Royal Charter was among these, sinking within yards of help with the loss of almost 500 passengers and crew.
In the mid 1870s the lantern and lighting apparatus was replaced by a new lantern. In 1909 an early form of incandescent light was installed and in 1927 this was replaced by a more modern form of incandescent mantle burner. The station was electrified in 1938.
Automation
On 12 September 1984 the lighthouse was automated and the keepers withdrawn. The lighthouse is now monitored and controlled from Trinity House’s Planning Centre in Harwich, Essex.
Possibly the best smile in all of Dharavi – from a cardboard stacker at a recycling unit at Nauvrag Compund.
A southbound CN train with a long cut of double-stacked containers followed by an equally long cut of auto rack cars approaches the Amtrak station in Effingham, Illinois.
STACKED PILLOW CAKES THAT I MADE FOR MY MOMMA'S 57th BIRTHDAY WHILE I WAS ON VACATION IN THE DOMINICAN REPUBLIC THIS SUMMER.
SHE SHOWED ME HOW TO MAKE THESE FLOWERS AND SHE HAD NOOOOOO CLUE I WAS MAKING THEM FOR HER OWN CAKE!!! HAHAHA! SHE WAS SURPRISED, SHE LOVED IT WE CRIED AND IT WAS A PARTY TO REMEMBER!
LOVE YOU MOM!
HAND MAKE FLOWERS, BUTTONS, AND ALL EDIBLE GUMPASTE DETAILS.
Peter Calaboyias, 2000, near Paterno Library, Pennsylvania State University, University Park, State College, Pennsylvania, USA, sculpture
Stackable Square Boxes
Folded by Marcela Brina
Designer: Tomoko Fuse
More details in: www.artisbellus.com/2015/01/origami-boxes-stackable-squar...
Strobist: Sunpak Auto 26SR in collapsed shootthrough umbrella to camera right. Triggered with PocketWizard Plus III's.
Focus stacked using Photoshop.
A closeup showing the stacked headlights on the 1967 Cadillac Fleetwood Sixty Special I used to have.
BNSF 3796 leads a southbound intermodal near Aberdeen, MS approaching North Judge on the Birmingham Sub.
This time I tried a different aperture, following advice from my boss at work. I have also stacked 7 shots of about 30 minutes each.
Trying to eliminate the 'shake' I got on all but the first shot last time, I paused for around 15 seconds between shots this time. No shake, but there is a gap.
Anyway, I'll take photos of other stuff while the full moon takes the stage.