Category: Technology

Views of science and technology from around the world

Nine-Years Ago (06-August-2010) — California

Gone to See America August 2010 Road Trip. Day 6: Eastern Sierra Photography Workshop with Michael Mariant. Bodie State Historic Park.

Images taken on my second visit to Bodie State Park. California maintains the park in a state of arrested decay. The park is a National Historic District, and is known as a wild-west gold mining ghost town. All of the images were converted to monochrome/sepia to fit with the historic nature of the ghost town. The Schoolroom Marm’s hat is a repeat of an image I took in 2008.


Nikon D3s camera with 50 mm f/1.4 lens. Click on the above image to access the individual images in the slideshow.



Nikon D3s camera with 200 mm f/2 lens. Click on the above image to access the individual images in the slideshow.



Nikon D3x camera with 24 mm f/1.4 lens. Click on the above image to access the individual images in the slideshow.


Sunday (04-August-2019) — New Jersey

Bridge Velo Bicycle Race in Montgomery Township.

The bicycle race passed right by the house this morning. The race starts at the bottom of the hill at the J&J facility and went around the block. Blocks here are pretty big and includes some significant hills (both up and down). I need to use my Elby electric power assisted bicycle to make it up the hill.

Bridge Velo Bike Race in Montgomery Township. Image taken with a Leica CL camera and 23 mm f/2 lens. (DAVID J MATHRE)
Bridge Velo Bike Race in Montgomery Township. Image taken with a Leica CL camera and 23 mm f/2 lens. (DAVID J MATHRE)
Bridge Velo Bike Race in Montgomery Township. Image taken with a Leica CL camera and 23 mm f/2 lens. (DAVID J MATHRE)
Bridge Velo Bike Race in Montgomery Township. Image taken with a Leica CL camera and 23 mm f/2 lens. (DAVID J MATHRE)


Click on the above image to access the individual images in the slideshow.



Click on the above image to access the individual images in the slideshow.



Click on the above image to access the individual images in the slideshow.


Daily Electric Energy Used (58.9 kWh) from Sense and Daily Solar Electric Energy Produced (71.6 kWh) from SolSystems and Locus Energy. Daily net Surplus 12.7 kWh. For the week used 399 kWh and produced 441 kWh. Weekly net surplus 42 kWh.

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Eleven-Years Ago (24-February-2008) — Colorado

Road Scholar “Photography in the Southwest” Workshop Day 0. Mesa Verde National Park.

I wasn’t sure that I would be able to make the trip from Boulder to southwestern Colorado because of a winter storm that passed through during the previous days. The roads were clear, and there were not many vehicles on the road. I made it to Mesa Verde National Park in time to meet my father and brother before attending an Road Scholar/Elderhostel photography workshop. It was still snowing when I arrived at the National Park.

Winter panorama in Colorado from Mesa Verde National Park. Image taken with a Nikon D3 camera and 14-24 mm f/2.8 lens (ISO 200, 14 mm, f/11, 1/1250 sec). (David J Mathre)
Winter panorama in Colorado from Mesa Verde National Park. Image taken with a Nikon D3 camera and 14-24 mm f/2.8 lens (ISO 200, 14 mm, f/11, 1/1250 sec). (David J Mathre)
Spruce Tree House cliff dwelling in the winter. Mesa Verde National Park. Image taken with a Nikon D300 camera and 18-300 mm VR lens (ISO 360, 50 mm, f/8. 1/250 sec). (David J Mathre)
Spruce Tree House cliff dwelling in the winter. Mesa Verde National Park. Image taken with a Nikon D300 camera and 18-300 mm VR lens (ISO 360, 50 mm, f/8. 1/250 sec). (David J Mathre)
Mesa Verde National Park winter panorama. Composite of 10 images taken with a Nikon D3 camera and 80-400 mm VR lens (ISO 200, 80 mm, f/4.5, 1/200 sec). Raw images processed with Capture One Pro and the composite generated using AutoPano Giga Pro. (David J Mathre)
Mesa Verde National Park winter panorama. Composite of 10 images taken with a Nikon D3 camera and 80-400 mm VR lens (ISO 200, 80 mm, f/4.5, 1/200 sec). Raw images processed with Capture One Pro and the composite generated using AutoPano Giga Pro. (David J Mathre)
Square Tower House cliff dwelling. Mesa Verde National Park. Image taken with a Nikon D3 camera and 80-400 mm VR lens (ISO 200, 80 mm, f/4.5. 1/200 sec). (David J Mathre)
Square Tower House cliff dwelling. Mesa Verde National Park. Image taken with a Nikon D3 camera and 80-400 mm VR lens (ISO 200, 80 mm, f/4.5. 1/200 sec). (David J Mathre)
Cliff Palace in the winter. Mesa Verde National Park. Image taken with a Nikon D3 camera and 80-400 mm VR lens (ISO 200, 270 mm, f/5.3, 1/80 sec). (David J Mathre)
Cliff Palace in the winter. Mesa Verde National Park. Image taken with a Nikon D3 camera and 80-400 mm VR lens (ISO 200, 270 mm, f/5.3, 1/80 sec). (David J Mathre)

Saturday (16-February-2019) — New Jersey

Wintertime in New Jersey — Maple Syrup Production.

The second maple sap to maple syrup boil down this winter. Time lapse videos to follow when I have time to process the images.


Six-Years Ago (09-February-2013) — Norway

Gone to See Norway 2013 Chasing the Northern Lights. Day 12: Tromsø.

Indian Navy Diesel-Electric Submarine INS  #Sindhurakshak   Docked Next to the Hurtigruten MS Finnmarken in Tromsø. The 16-year-old Russian built submarine was returning from a 2 year upgrade in Russia. This was the first time that I saw a submarine with glass windows in the conning tower. Composite of 3 images taken with a Nikon 1 V2 camera and 18.5 mm f/1.8 lens (ISO 800, 18.5 mm, f/1.8, 1/30 sec) combined using AutoPano Giga Pro.

Indian Navy Diesel-Electric Submarine INS Sindhurakshak. Composite of 3 images taken with a Nikon 1 V2 camera and 18.5 mm f/1.8 lens (ISO 800, 18.5 mm, f/1.8, 1/30 sec) combined using AutoPano Giga Pro. (David J Mathre)
Indian Navy Diesel-Electric Submarine INS Sindhurakshak. Composite of 3 images taken with a Nikon 1 V2 camera and 18.5 mm f/1.8 lens (ISO 800, 18.5 mm, f/1.8, 1/30 sec) combined using AutoPano Giga Pro. (David J Mathre)

Just over six months later (13-August-2013)  the Indian Sindhurakshak submarine experienced two explosions a fire, and sank while docked in Mumbai, India.