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nothingtochance:

The Ancient Blacksmith Interiors / Photos: W+B

(via headscape)

misanthropic-messiah:

Pangolin backpack by Cyclus. Made from recycled inner tubes, featuring retractable layers which close via a unique (award wining) magnetic locking system, this pack is aerodynamic and perfect for cycling or attempting to survive the zombie apocalypse.

(via headscape)

usnatarchives:

October is American Archives Month. To celebrate, we are highlighting our staff around the country and their favorite records from the holdings in the National Archives. Today’s staff member is Alan Walker, archivist in Research Services at the National Archives at College Park. His favorite record is this aerial photo from the records of aerial photography pioneer Albert W. Stevens (series 18-AWS, in Stills). So why does he like this photo?“Why do I like this? Well, it’s just awesome! Not only the flare effects, but look at the altitude. Stevens was waaaay up there. I’ve looked at a lot of photographs while working here, but this one has always mesmerized me.”Image: Flare Effects from the Sun. National Archives Identifier: 7419807.http://research.archives.gov/description/7419807.

usnatarchives:

October is American Archives Month. To celebrate, we are highlighting our staff around the country and their favorite records from the holdings in the National Archives. 

Today’s staff member is Alan Walker, archivist in Research Services at the National Archives at College Park. His favorite record is this aerial photo from the records of aerial photography pioneer Albert W. Stevens (series 18-AWS, in Stills). So why does he like this photo?

“Why do I like this? Well, it’s just awesome! Not only the flare effects, but look at the altitude. Stevens was waaaay up there. I’ve looked at a lot of photographs while working here, but this one has always mesmerized me.”

Image: Flare Effects from the Sun. National Archives Identifier: 7419807.http://research.archives.gov/description/7419807.

ri-science:

A cloud chamber and the birth of helium atoms.

The tracks here show the natural radiation in the atmosphere around us. Thicker tracks are big heavy alpha particles, whispy ones are beta particles, but they all work in the same way.

The atmosphere in the chamber contains a lot of alcohol vapour. When charged particles fire through the atmosphere they cause little droplets to form, and these are the clouds you can see.

This is similar to how a track forms behind an aeroplane, where the exhaust can help the droplets of moisture form together into a cloud.

When you then add an Americium pole into the chamber, the alpha particles emitted (with their two protons and two neutrons) grab electrons and form Helium atoms. 

Watch the full video with Dr Peter Wothers on YouTube.

(via spaceplasma)

rkherman:

My poster entry for NSF’s Vizzies! The sea slug Elysia chlorotica is an awesome creature, able to photosynthesize like a plant! You can find out more about it in the sources below:
Dr. Sidney Pierce talks about his research on Elysia chlorotica at TEDxTampaBay
Elysia chlorotica in Cataloging Diversity in the Sacoglossa
Bleakney, J.S. (1996). Sea Slugs of Atlantic Canada and the Gulf of Maine. Halifax, NS: Nimbus Publishing and The Nova Scotia Museum.
Mujer, C.V., Andrews, D.L., Manhart, J.R., Pierce, S.K., & Rumpho, M.E. (1996). Chloroplast genes are expressed during intracellular symbiotic association of Vaucheria litorea plastids with the sea slug Elysia chlorotica. Cell Biology, 93, 12333-12338.
Thompson, T.E. (1976). Biology of Opisthobranch Molluscs (Vol 1). London: The Ray Society.

rkherman:

My poster entry for NSF’s Vizzies! The sea slug Elysia chlorotica is an awesome creature, able to photosynthesize like a plant! You can find out more about it in the sources below:

Dr. Sidney Pierce talks about his research on Elysia chlorotica at TEDxTampaBay

Elysia chlorotica in Cataloging Diversity in the Sacoglossa

Bleakney, J.S. (1996). Sea Slugs of Atlantic Canada and the Gulf of Maine. Halifax, NS: Nimbus Publishing and The Nova Scotia Museum.

Mujer, C.V., Andrews, D.L., Manhart, J.R., Pierce, S.K., & Rumpho, M.E. (1996). Chloroplast genes are expressed during intracellular symbiotic association of Vaucheria litorea plastids with the sea slug Elysia chlorotica. Cell Biology, 93, 12333-12338.

Thompson, T.E. (1976). Biology of Opisthobranch Molluscs (Vol 1). London: The Ray Society.

(via scientificillustration)

memeguy-com:

Some signs exist because theyre practical Others have a hell of a story behind them

memeguy-com:

Some signs exist because theyre practical Others have a hell of a story behind them

(via freshphotons)

theolduvaigorge:

  • by Paweł Valde-Nowak, Bridget Alex, Bolesław Ginter, Maciej T. Krajcarz, Teresa Madeyska, Barbara Mkina, Krzysztof Sobczyk, Damian Stefański, Piotr Wojtal, Mirosław Zając and Katarzyna Zarzecka-Szubińska
"Ciemna Cave is a key Micoquian site located in Ojców National Park, in the southern part of the Kraków-Częstochowa UplandThe site is known for a distinct group of asymmetrical knives, prądniks, as well as the associated cultural assemblage, the Prądnik industry” or “Micoquo-Prondnikiens”—both named after the Prądnik stream flowing through the valley. Excavation of Ciemna Cave carried out in the early twentieth century provided a series of stratified archaeological materials. The published sections indicated explicitly diverse sequences and contexts in various parts of the site. In Ogrójec (sector CO), a collapsed part of the cave, two cultural layers were recognized within loess deposit: an upper layer with Prądnik industry implements and a lower layer with Prądnik industry artifacts and mixture of older cultural units, includinthose with handaxes. A different situation was encountered at the entrance to the cave (sector C), where a much longer stratigraphic section with a few artifactually poor cultural levels was discovered. Current excavations began in 2007 targeted a new area of the cave chamber, with a primary goal of correlating geologic and cultural sequences from the previous excavations. At this stage a complete section has been exposed, which comprises 19 major geological layers and 9 archeological levels. The area has provided new lithics finds and chronological data that have allowed us to make preliminary cultural linkages” (read more/open access).
(Open access source: Quaternary International 326/327:124-125, 2014 via Academia.edu)

(via scientificillustration)

nothingtochance:

The Ancient Blacksmith Interiors / Photos: W+B

(via headscape)

misanthropic-messiah:

Pangolin backpack by Cyclus. Made from recycled inner tubes, featuring retractable layers which close via a unique (award wining) magnetic locking system, this pack is aerodynamic and perfect for cycling or attempting to survive the zombie apocalypse.

(via headscape)

usnatarchives:

October is American Archives Month. To celebrate, we are highlighting our staff around the country and their favorite records from the holdings in the National Archives. Today’s staff member is Alan Walker, archivist in Research Services at the National Archives at College Park. His favorite record is this aerial photo from the records of aerial photography pioneer Albert W. Stevens (series 18-AWS, in Stills). So why does he like this photo?“Why do I like this? Well, it’s just awesome! Not only the flare effects, but look at the altitude. Stevens was waaaay up there. I’ve looked at a lot of photographs while working here, but this one has always mesmerized me.”Image: Flare Effects from the Sun. National Archives Identifier: 7419807.http://research.archives.gov/description/7419807.

usnatarchives:

October is American Archives Month. To celebrate, we are highlighting our staff around the country and their favorite records from the holdings in the National Archives. 

Today’s staff member is Alan Walker, archivist in Research Services at the National Archives at College Park. His favorite record is this aerial photo from the records of aerial photography pioneer Albert W. Stevens (series 18-AWS, in Stills). So why does he like this photo?

“Why do I like this? Well, it’s just awesome! Not only the flare effects, but look at the altitude. Stevens was waaaay up there. I’ve looked at a lot of photographs while working here, but this one has always mesmerized me.”

Image: Flare Effects from the Sun. National Archives Identifier: 7419807.http://research.archives.gov/description/7419807.

ri-science:

A cloud chamber and the birth of helium atoms.

The tracks here show the natural radiation in the atmosphere around us. Thicker tracks are big heavy alpha particles, whispy ones are beta particles, but they all work in the same way.

The atmosphere in the chamber contains a lot of alcohol vapour. When charged particles fire through the atmosphere they cause little droplets to form, and these are the clouds you can see.

This is similar to how a track forms behind an aeroplane, where the exhaust can help the droplets of moisture form together into a cloud.

When you then add an Americium pole into the chamber, the alpha particles emitted (with their two protons and two neutrons) grab electrons and form Helium atoms. 

Watch the full video with Dr Peter Wothers on YouTube.

(via spaceplasma)

rkherman:

My poster entry for NSF’s Vizzies! The sea slug Elysia chlorotica is an awesome creature, able to photosynthesize like a plant! You can find out more about it in the sources below:
Dr. Sidney Pierce talks about his research on Elysia chlorotica at TEDxTampaBay
Elysia chlorotica in Cataloging Diversity in the Sacoglossa
Bleakney, J.S. (1996). Sea Slugs of Atlantic Canada and the Gulf of Maine. Halifax, NS: Nimbus Publishing and The Nova Scotia Museum.
Mujer, C.V., Andrews, D.L., Manhart, J.R., Pierce, S.K., & Rumpho, M.E. (1996). Chloroplast genes are expressed during intracellular symbiotic association of Vaucheria litorea plastids with the sea slug Elysia chlorotica. Cell Biology, 93, 12333-12338.
Thompson, T.E. (1976). Biology of Opisthobranch Molluscs (Vol 1). London: The Ray Society.

rkherman:

My poster entry for NSF’s Vizzies! The sea slug Elysia chlorotica is an awesome creature, able to photosynthesize like a plant! You can find out more about it in the sources below:

Dr. Sidney Pierce talks about his research on Elysia chlorotica at TEDxTampaBay

Elysia chlorotica in Cataloging Diversity in the Sacoglossa

Bleakney, J.S. (1996). Sea Slugs of Atlantic Canada and the Gulf of Maine. Halifax, NS: Nimbus Publishing and The Nova Scotia Museum.

Mujer, C.V., Andrews, D.L., Manhart, J.R., Pierce, S.K., & Rumpho, M.E. (1996). Chloroplast genes are expressed during intracellular symbiotic association of Vaucheria litorea plastids with the sea slug Elysia chlorotica. Cell Biology, 93, 12333-12338.

Thompson, T.E. (1976). Biology of Opisthobranch Molluscs (Vol 1). London: The Ray Society.

(via scientificillustration)

memeguy-com:

Some signs exist because theyre practical Others have a hell of a story behind them

memeguy-com:

Some signs exist because theyre practical Others have a hell of a story behind them

(via freshphotons)

theolduvaigorge:

  • by Paweł Valde-Nowak, Bridget Alex, Bolesław Ginter, Maciej T. Krajcarz, Teresa Madeyska, Barbara Mkina, Krzysztof Sobczyk, Damian Stefański, Piotr Wojtal, Mirosław Zając and Katarzyna Zarzecka-Szubińska
"Ciemna Cave is a key Micoquian site located in Ojców National Park, in the southern part of the Kraków-Częstochowa UplandThe site is known for a distinct group of asymmetrical knives, prądniks, as well as the associated cultural assemblage, the Prądnik industry” or “Micoquo-Prondnikiens”—both named after the Prądnik stream flowing through the valley. Excavation of Ciemna Cave carried out in the early twentieth century provided a series of stratified archaeological materials. The published sections indicated explicitly diverse sequences and contexts in various parts of the site. In Ogrójec (sector CO), a collapsed part of the cave, two cultural layers were recognized within loess deposit: an upper layer with Prądnik industry implements and a lower layer with Prądnik industry artifacts and mixture of older cultural units, includinthose with handaxes. A different situation was encountered at the entrance to the cave (sector C), where a much longer stratigraphic section with a few artifactually poor cultural levels was discovered. Current excavations began in 2007 targeted a new area of the cave chamber, with a primary goal of correlating geologic and cultural sequences from the previous excavations. At this stage a complete section has been exposed, which comprises 19 major geological layers and 9 archeological levels. The area has provided new lithics finds and chronological data that have allowed us to make preliminary cultural linkages” (read more/open access).
(Open access source: Quaternary International 326/327:124-125, 2014 via Academia.edu)

(via scientificillustration)

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