View allAll Photos Tagged bolts
El tema de esta semana (14 de Abril) es "Tuercas & Tornillos".
The theme for this week (on April 14) is "Nuts & Bolts".
The more they rust, the more they stick together.
Just like in a real relationship. The more you see each other's flaws, and be able to accept and live with it, the longer you'll be bolted together. =)
Zane
Nuts & bolts construction board we gave to his brother, Orson, for his birthday a couple of years ago.
Close up of a wet Art Deco reinforcement ornament on the outside of a house, which is a bit rusty and dates from the early 20th century.
Test shot 2 for new adventures in 1:1 macro.
5 image stack, flash, EXIF as noted, shot in manual mode on tripod, small 3:2 crop.
From the Richard Harvey Studio One
Photo taken around WildSumaco Reserve, Napo, Ecuador
2018/09/10
DSCN0017_2-CU_DPN28_AE_S_CM_SH-VAL20-FIN
These are BIG bolts, bought at Boeing Surplus 30+ years ago for $1/pound. 13 inches long, 1 5/8 inch diameter, a bit over seven pounds each, you would need a 2 ½ inch socket to crank ‘em, obviously used, ASTM-A235 medium carbon steel quenched and tempered, tensile strength 150,000 psi. Closest commercially available match I could find were Grade 8 12"x1 1/2" for about $100 a pop.
I imagine a bunch of these attaching wings and the like, but they do not look like any current airframe bolts of similar size that I could find – these are very vanilla looking hex head bolts writ large – so probably obsolete. Duuno how obsolete; B-19 takeouts seem as plausible as 727s.
I named this one missed bolt because I missed the main event. The camera was set to expose for several seconds. The bolt in the upper left corner had just started to send out its fingers when the exposure ended. At the same time the exposure ended the full lightning bolt hit. It was massive. I posted this photo because I like the shapes in the bolt and the colors of the sky from the reflection of the city lights.
Oddly enough, this bold piece of abstract reality is a detail from an antique army tank. It shows part of the big, rugged, cogged wheel that drives the right-side tread of a World War Two Sherman M4A4, built in the USA in 1942. This specific tank was used in battle by the French in France. It is part of a French War Memorial.
Location: Mulhouse, Alsace FR.
In my album: Dan's Other Metal.
As night fell the storm moved toward the city and I was able to capture this bolt right over downtown!
An old bolt in the old supermarket car park. May try for a better photo at some point.
Better viewed large and thank you for your favourites.
I have a question for any experts out there. Anyone with knowledge of lightning and atmospherics, and also anyone with working knowledge of camera sensors.
I took these two shots yesterday, more in hope than anything, Being lucky enough to have the Sony RX10 that shoots at 24 frames per second, I pointed at the sky across the street and held the shutter for a second. I got lucky and managed these two shots. Not very exciting looking, being daylight lightning shots, but I am intrigued by the difference in the two shots. They are consecutive frames 1/24th of a second apart. Bolt 1 shows up the brightest, and actually shows the lightning in its ground to air phase and the bolt is only half completed. Lightning bolt 2 shows the completed bolt all the way to the cloud, but is fading in brightness. The bolt itself was very close with barely a second elapsing between flash and the window rattling thunderclap!
My puzzle is the first shot that shows a purple halo around the upward end of the lightning, and a corresponding colour shift across the image in the sky below the top of the lightning.
I'd love to know is this just an issue with the sensor and its response to a sudden intense flash, or is it atmospheric?
My guess is the sensor, but I'd love to hear other opinions or experiences.
These two shots are both cropped heavily from the left half of the wide angle image, hence the slight distortion in the vertical lines of the house.
One of several rusty nuts and bolts holding an old oil well cap valve together for the Macro Mondays group, challenge: Rust.
Happy Macro Monday!
A lightning strike or lightning bolt is a lightning event in which the electric discharge takes place between the atmosphere and the ground. Most originate in a cumulonimbus cloud and terminate on the ground, called cloud-to-ground (CG) lightning. A less common type of strike, ground-to-cloud (GC) lightning, is upward-propagating lightning initiated from a tall grounded object and reaching into the clouds. About 25% of all lightning events worldwide are strikes between the atmosphere and earth-bound objects. Most are intracloud (IC) lightning and cloud-to-cloud (CC), where discharges only occur high in the atmosphere. Lightning strikes the average commercial aircraft at least once a year, but modern engineering and design means this is rarely a problem. The movement of aircraft through clouds can even cause lightning strikes.
A single lightning event is a "flash", which is a complex, multistage process, some parts of which are not fully understood. Most CG flashes only "strike" one physical location, referred to as a "termination". The primary conducting channel, the bright, coursing light that may be seen and is called a "strike", is only about one inch (ca. 2.5 cm) in diameter, but because of its extreme brilliance, it often looks much larger to the human eye and in photographs. Lightning discharges are typically miles long, but certain types of horizontal discharges can be tens of miles in length. The entire flash lasts only a fraction of a second.