View allAll Photos Tagged airflow
A mysteriously long, thin cloud has again appeared over the 20-km high Arsia Mons volcano on Mars.
A recurrent feature, the cloud is made up of water ice, but despite appearances it is not a plume linked to volcanic activity. Instead, the curious stream forms as airflow is influenced by the volcano’s ‘leeward’ slope − the side that does not face the wind.
These images of the cloud, which can reach up to 1800-km in length, were taken on 17 and 19 July by the Visual Monitoring Camera (VMC) on Mars Express, which has been studying the Red Planet from orbit for the past 16 years.
“We have been investigating this intriguing phenomenon and were expecting to see such a cloud form around now,” explains Jorge Hernandez-Bernal, PhD candidate at the University of the Basque Country (Spain) and lead author of the ongoing study.
“This elongated cloud forms every martian year during this season around the southern solstice, and repeats for 80 days or even more, following a rapid daily cycle. However, we don’t know yet if the clouds are always quite this impressive”.
A martian day, or sol, is slightly longer than an Earth day at 24 hours, 39 minutes and 35 seconds long. A year at the Red Planet consists of 668 sols, approximately 687 days, so the seasons last for twice as long.
The southern solstice is the period of the year when the Sun is in the southernmost position in the martian skies, just like 21 December on Earth. In the early mornings during this period, this fleeting cloud grows for approximately three hours, quickly disappearing again just a few hours later.
Most spacecraft in orbit around the Red Planet tend to observe in the afternoon, however Mars Express is in a privileged position to gather and provide crucial information on this unique effect.
“The extent of this huge cloud can't be seen if your camera only has a narrow field of view, or if you're only observing in the afternoon,” says Eleni Ravanis, a Young Graduate Trainee for the Mars Express mission who works specifically for the VMC instrument.
“Luckily for Mars Express, the highly elliptical orbit of the spacecraft, coupled with the wide field of view of the VMC instrument, lets us take pictures covering a wide area of the planet in the early morning. That means we can catch it!”
The Mars Express science team have now named the cloud the Arsia Mons Elongated Cloud, AMEC. So, for how long has it been disappearing and reappearing? Why does it only form in the early morning? Stay tuned as scientists continue to investigate, and we reveal more mysteries from Mars.
You can find more pictures of AMEC, as well as other ‘alien’ features of the Red Planet, on the VMC Flickr page.
Credits: ESA/GCP/UPV/EHU Bilbao
Steel Wool Lightpainting
Fine steel wool ignites easily, using a lighter you can ignite it just a little bit, so the steel wool is smoldering in one or two places. Once you start spinning the whisk, the airflow will cause the rest of the steel wool to catch on fire.
If there is one thing that Detroit’s automobile manufacturers could agree on in the mid 1930s, it was the idea that the future would be streamlined, sleek. The future was going to look fast even when it was standing still.
GM’s Parade of Progress began hauling displays built for the 1933 Chicago World’s Fair around the country in the flashy Streamliners. When the GM circus came to your town, they brought a technological vision of the future wrapped in Art Deco style.
The public didn’t really know what to think of the Chrysler Airflow coupes. Both vehicles commanded a lot of second looks when they were traveling the fledgling highway systems of America.
This image is a bit unusual. We had to mix scales to get an image that looks correct. The Autocult Streamliner is listed everywhere as being in 1/43 scale but that cannot be! It dwarfs anything in our 1/43rd scale motor pool. It looks better next to a 1/24th scale piece but we went with 1/32 scale for this pairing. Stylistically and visually, that is what seemed to look right sitting next to the Streamliner.
This is a forced perspective photograph of 1/43 and 1/32 scale die-cast models vehicles in front of a real background.
Autocult 1936 GM Streamliner
Signature Models 1936 Chrysler Airflow
I've had this ball sat on my desk for ages and have no idea where it came from! I think I might have found it in our garden and thought that would be interesting to photograph. Anyway today's the day I did!
HMM!
Unrestored Cars - Pre-War
Presented by Atelier ATP-Auto-Moto
Chantilly Arts & Elegance Richard Mille
Château de Chantilly
Chantilly
France - Frankrijk
September 2024
The Japanese allegedly nicknamed the Corsair "Whistling Death", for the noise made by airflow through the wing root-mounted oil cooler air intakes.
Eastern Great Egret (Ardea modesta) jumps a little and makes first wing beat to leave the ground. Note the contour of the near wing to accomplish both lift and forward movement before airflow takes full aerodynamic effect.
Fan Negative.
I was reminded today how to scan negs properly. For some reason I had fallen into bad habits.
Rushed home to do this one as it had looked good to the eye. Wow. It came up a treat, so vibrant and detailed I just love it.
I never get too dissapointed if I underexpose a print as it oftens means the neg is good.
The Airflow fan came from Grandma. It has been in the family since 1960's.
For the naval logistics category of Decisive Action.
Qualifying picture with gate down, truck, and crew: www.flickr.com/photos/188464565@N06/50073723577/in/datepo...
Since Aberryca was founded in a land locked area of the continent, they began with no navy to speak of. Once they survived their early skirmishes and expanded to the Northeast coast of B10, a fleet would become necessary.
Aberryca's first ship is known as Cranberry One, and her sailors are the mighty Cranberries. The Cranberries have affectionately named her "Ocean Spray." It is a commandeered civilian ferry modified with Aberrycan hovercraft technology, armaments, as well as a formidable ordinance stopping 'berrycade'. Like their Raspberry counterparts, Cranberries are hardy and intelligent. You do not want to see the Ocean Spray unloading on your shore.
However, most days the Ocean Spray is not moving soldiers, she is moving valuable cargo and provisions. She is seen here with a standard flatbed truck of supplies, a devastating Buttberry Bomb, a strawberry crate, and a very special palm tree.
Providence and Worcester train WONR is seen stopped in Webster, MA, after losing airflow to the horn on their leader. Randy Stahl, Superintendent of Locomotives, would soon arrive but would be unable to fix the issue without having the proper tools on hand. For the rest of the run, the conductor had to operate the horn from the second unit at grade crossings. Regardless, the freshly painted (albeit incorrectly) SD70M-2 looked amazing in contrast to the five older P&W GE's that trailed behind it, on this cloudy afternoon. This is the one and only time the 4301 lead a train with the stripe in the wrong location. Once this train reached Plainfield, the unit was cut away and sent right back to the paint booth for the "proper" white stripe.
April 2016
Webster, MA.
Rear Wing - Jensons 2006 BAR F1 Car. Last of that design and detailed wit the names of all the Prodrive staff that had input to the season.
Photographed at the Walter P. Chrysler 46th Annual National Meet in Springfield on July 21-25, 2015.
Please visit my collection of Motor Vehicles on Flickr where you will find over 10,000 car and truck photos organized in albums by model year, manufacturer, vehicle type, and more. This project, which began in 2008, continues to expand with new material added daily.
Front of a 1935 Chrysler Airflow. At the time these were built the were designed to be very ahead of their time and be more aerodynamic than anything else on the road. Location not disclosed at owners request.
Night, near full moon, 30 second exposure, handheld light producing device set to white.
Click on the image, because it's best BIG on BLACK!!!
The roof of the rather small alpine house in Kew Gardens.
In March 2006, the Davies Alpine House opened, the third version of an alpine house since 1887. Although only 16 metres (52 ft) long the apex of the roof arch extends to a height of 10 metres (33 ft) in order to allow the natural airflow of a building of this shape to aid in the all-important ventilation required for the type of plants to be housed.
The new house features a set of automatically operated blinds that prevent it overheating when the sun is too hot for the plants together with a system that blows a continuous stream of cool air over the plants. The main design aim of the house is to allow maximum light transmission. To this end the glass is of a special low iron type that allows 90 per cent of the ultraviolet light in sunlight to pass. It is attached by high tension steel cables so that no light is obstructed by traditional glazing bars.
To conserve energy the cooling air is not refrigerated but is cooled by being passed through a labyrinth of pipes buried under the house at a depth where the temperature remains suitable all year round. The house is designed so that the maximum temperature should not exceed 20 °C (68 °F).
Kew's collection of Alpine plants (defined as those that grow above the tree-line in their locale – ground level at the poles rising to over 2,000 metres (6,562 feet)), extends to over 7000. As the Alpine House can only house around 200 at a time the ones on show are regularly rotated.
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Apparently it was airflow over airplane wings that inspired the design of the Zaha Hadid designed Winton Gallery at the Science Museum in London.
As much as I enjoyed my first visit to this new gallery, I need to go back when it's a bit quieter as photographing such a space when it's crawling with people is quite a challenge.
Click here for more shots of Zaha Hadid designs : www.flickr.com/photos/darrellg/albums/72157634117713361
From the Science Museum website : "Mathematics: The Winton Gallery is the first permanent public museum exhibition designed by Zaha Hadid Architects anywhere in the world. The gallery is also the first of Zaha Hadid Architects’ projects to open in the UK since Dame Zaha Hadid’s sudden death in March 2016. The late Dame Zaha first became interested in geometry while studying mathematics at university. Mathematics and geometry have a strong connection with architecture and she continued to examine these relationships throughout each of her projects; with mathematics always central to her work. As Dame Zaha said, 'When I was growing up in Iraq, math was an everyday part of life. We would play with math problems just as we would play with pens and paper to draw – math was like sketching.'"
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