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(public display, Drake Well Museum, Titusville, Pennsylvania, USA)
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Early wells were drilled using a spring pole apparatus - men would use their feet to "kick down" the drill bit and chip away at the rock (see: www.petroleumhistory.org/OilHistory/images/Cable/Sp_pole.jpg). Three feet of hole per day could be achieved using this method. As the oil industry developed, wells were drilled using cable tool rigs and later, rotary drill rigs. Most petroleum wells are drilled using rotary drill rigs - seen here is a drilling bit for this type of rig. This is a tri-cone bit. During drilling, the three cones rotate and the projections abrade and remove rock fragments. In addition to being used for drilling petroleum wells, tri-cone bits have also been used at some mines to drill holes. The holes are then packed with explosives and detonated (e.g., this was done in the iron mining districts of Minnesota).
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See info. at:
en.wikipedia.org/wiki/Drilling_rig
and
This is SOOC (Watermark only). I was playing around with the brand new Nikkor 70-200mm VRII f/2.8D AF-S lens today. As you can see, it may be expensive, but it is friggin awesome.
Disclaimer: "Parrot was killed during this photo session". LOL Just Kidding.
Quick review: Anyone that has the money for this zoom lens.... buy it! I have the 55-200mm VR that I got when I bought my camera. The 70-200mm dwarfs it by size comparison. The Bokeh and crispness.... the 55-200 can't touch, this lens is in a whole different league. Now I do know it is not an inexpensive lens... But if you have the ability to wait a bit, and save up.... In my opinion this lens will make you much happier than the 55-200, 18-200, or 70-300.
Had a bit of a look at the new Brighton Transport Hub this afternoon [ still under construction ]. This view showing the new modest loco facilities. Off to the left is the marshalling yard. A large concrete apron straddles the area between the track on the right to the yard tracks on the left. Most of the trackwork appears to be in place. Thursday 23rd June 2011
Photo By Steve Bromley
Bit disorientating to find an object in a 'museum' setting which was part of your own childhood.
Paraffin heater of the type that kept me from freezing while doing homework in the winter. Also doubled as a cooking-ring in my Gran's cottage in Dorset - put a pan on top and fry your bacon.
Namdaemun maket
in comments: Seoul view from the hotel grounds, old ladies meet up to discuss the news, the largest fish market in Seoul and a place were i finally had some food though i did not chose right.
A bit of tomfoolery before the ethnic Thai puppet show actually started stimulated the interest of the audience. Jokes and a comedy flirting sequence with the puppet drew much laughter from the audience downstairs. Sadly, I could not catch much of it from my first floor vantage point. I could see the performance dashing into and out of the crowds downstairs, meaning the main theatre downstairs would have been a lot more interactive. I had my guide covering that fore me- she managed a couple of interesting shots. Traditionally, Khon dramas (traditional Thai puppet shows) were performed at the court mostly for special occasions, i.e. weddings, funerals, births, etc. On rare occasions, there was the odd open-air performance which even the public could attend. With the change to a constitutional monarchy in 1932, royal support for Khon performances declined and there were no royal performances inside the palaces any more. The art began to slowly fade away into obscurity. Happily however, the Thailand Department of Fine Arts in Bangkok has now managed to revive the tradition and has been staging public Khon puppet show performances for a number of years now. (Bangkok, Thailand, Oct. 2018)
bit of a busy w/end so a bit of easy macro , seen a video on you tube about taking macros ,so thought i would try
On the 31st July 2017 the "Swedish Reefer" (1992, 13,930DWT) arrives in the River Fal for lay-up assisted by the local tugs "St.Piran" (1979), "Ankorva" (1967) and ""Percuil" (1967). The "Sweedish Reefer" arrived from St.Petersburg to join sister vessels "Hellas Reefer" (1991, 13,930DWT) and "Nederland Reefer" (1991, 13,958DWT).
Sharing a Little Bit of Albany History
By Joe Licavoli
On February 2nd, students from West Albany High School finally got to meet and know a little bit about their next-door neighbors from NETL’s Albany site. As part of continuing outreach efforts by both NETL and other community leaders, 28 advanced placement (AP) chemistry students attended a two-and-a-half hour set of talks at the Albany Regional Museum. These talks focused on Albany’s specialty metals history on the production of zirconium and titanium. In planning the event, NETL’s Joseph Licavoli worked with Sylvia Harvey (Teacher at West Albany High), Howard Poppleton (Retired—US Bureau of Mines), Mark Sidall (Retired—ATI Wah Chang), Dennis Emerson (Retired—ATI Wah Chang), Barry Valder (Retired—ATI Wah Chang), Judy Weissert (Director, Albany Regional Museum) and Mae Yih (Retired State Senator). The talks included an introduction to materials science, the history of specialty metals processing in Albany, and current/future uses of titanium, zirconium, hafnium, niobium, and tantalum.
After the talks, students and speakers held casual conversations about careers in Science, Technology, Engineering and Mathematics (STEM) fields and about specific research topics that had been discussed.
Mae Yih graciously offered to provide lunch for the students as well. Students were very engaged in the talks and grateful for the opportunity to discuss science with people that have helped make Albany a key player in metallurgy over the years. As part of her “Albany Renaissance” project, Mae Yih is sponsoring an essay contest for Albany area schools with this year’s topic focusing on the metal titanium and its uses. This essay contest and the high school visit are a part of ongoing efforts by members of the Albany community to help advance STEM education and bring more attention to the strong influence and positive effects that metallurgical processing facilities have had in shaping Albany’s history
Barry Valder (Retired—ATI Wah Chang) is shown presenting
More details from my walk in Glasgow Necropolis yesterday.
My goodness that old Canon 1.8 50mm is sharp. I should use it more often.
Little bit of sunny yellow to brighten your day :) Used Light flare 15 @ 100% Screen 2lilowls.com/light-flares-fine-art-textures-2/
8 Bit Balloons on the Fourth Plinth (One and Other) performance art in Trafalgar Square, London.
8 Bit Balloons is a construction of balloons organised into binary numbers. The letters of a message have been converted from their computer ASCII codes into binary numbers. Each group of 8 balloons in the binary code for a letter.
The balloons also have while LEDs inside them which can be seen in the closer shots.
Gretna Gateway, 5th August 2014. Taken with Olympus Trip 35 and Lomography 400CN shot at box speed. C41 Processed and scanned by lab (ASDA)
I'm sewing really long strips with the 1.5 inch width pieces. Then I'll cut them to about 40 inches, press them, sew five strips together, add a white strip to each side and then cut five blocks from each sewn set. I admit it, this is my idea of fun :)
Taken as NEF 14 bit to see gradation quality.
Opened in aperture 3.0 mac appeared as 16 bit.
Exported as Version as TIFF 16 bit.
Opened in photoshop cs5 resize as 1024 pxls height.
Posted from flickr web.
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