1. nevrfail:

Scan Your Food For Bacteria With Your Cell Phone
Have you ever been tempted to order steak tartare but decided against it for fear of getting sick? This little cell phone scanner can take a look at it for you and let you know if it does in fact harbor any E. coli bacteria.(Details) www.neverfail.co

COOL!

    nevrfail:

    Scan Your Food For Bacteria With Your Cell Phone

    Have you ever been tempted to order steak tartare but decided against it for fear of getting sick? This little cell phone scanner can take a look at it for you and let you know if it does in fact harbor any E. coli bacteria.(Details) www.neverfail.co

    COOL!

    (via microculture)

  2. sanityscraps:

SCHMETTERLING.

    sanityscraps:

    SCHMETTERLING.

    (Source: gcode260, via shychemist)

  3. sciencejokes:

http://sciencejokes.tumblr.com
  4. crownedrose:


Dimetrodon milleri

Sometimes people confuse Dimetrodons for dinosaurs, when actually Dimetrodons are in the class of Synapsida; a class more related to mammals than reptiles. Dimetrodons ranged from the Lower to Middle Permian; which also means they did not live alongside dinosaurs (another misconception).

    crownedrose:

    Dimetrodon milleri

    Sometimes people confuse Dimetrodons for dinosaurs, when actually Dimetrodons are in the class of Synapsida; a class more related to mammals than reptiles. Dimetrodons ranged from the Lower to Middle Permian; which also means they did not live alongside dinosaurs (another misconception).

    (via shychemist)

  5. deconversionmovement:

7 Theories on the Origin of Life
Primordial soup
Life on Earth began more than 3 billion years ago, evolving from the most basic of microbes into a dazzling array of complexity over time. But how did the first organisms on the only known home to life in the universe develop from the primordial soup?  Here are science’s theories on the origins of life on Earth.

Electric Spark
Electric sparks can generate amino acids and sugars from an atmosphere loaded with water, methane, ammonia and hydrogen, as was shown in the famous Miller-Urey experiment reported in 1953, suggesting that lightning might have helped create the key building blocks of life on Earth in its early days. Over millions of years, larger and more complex molecules could form. Although research since then has revealed the early atmosphere of Earth was actually hydrogen-poor, scientists have suggested that volcanic clouds in the early atmosphere might have held methane, ammonia and hydrogen and been filled with lightning as well.

Community Clay
 
The first molecules of life might have met on clay, according to an idea elaborated by organic chemist Alexander Graham Cairns-Smith at the University of Glasgow in Scotland. These surfaces might not only have concentrated these organic compounds together, but also helped organize them into patterns much like our genes do now.
The main role of DNA is to store information on how other molecules should be arranged. Genetic sequences in DNA are essentially instructions on how amino acids should be arranged in proteins. Cairns-Smith suggests that mineral crystals in clay could have arranged organic molecules into organized patterns. After a while, organic molecules took over this job and organized themselves.

Deep-Sea Vents
The deep-sea vent theory suggests that life may have begun at submarine hydrothermal vents, spewing key hydrogen-rich molecules. Their rocky nooks could then have concentrated these molecules together and provided mineral catalysts for critical reactions. Even now, these vents, rich in chemical and thermal energy, sustain vibrant ecosystems.

Chilly Start
Ice might have  covered the oceans 3 billion years ago, as the sun was about a third  less luminous than it is now. This layer of ice, possibly hundreds of  feet thick, might have protected fragile organic compounds in the water  below from ultraviolet light and destruction from cosmic impacts. The  cold might have also helped these molecules to survive longer, allowing  key reactions to happen.

RNA World
 
Nowadays DNA needs proteins in order to form, and proteins require DNA to form, so how could these have formed without each other? The answer may be RNA, which can store information like DNA, serve as an enzyme like proteins, and help create both DNA and proteins. Later DNA and proteins succeeded this “RNA world,” because they are more efficient. RNA still exists and performs several functions in organisms, including acting as an on-off switch for some genes. The question still remains how RNA got here in the first place. And while some scientists think the molecule could have spontaneously arisen on Earth, others say that was very unlikely to have happened.  
Other nucleic acids other than RNA have been suggested as well, such as the more esoteric PNA or TNA.

Simple Beginnings
Instead of  developing from complex molecules such as RNA, life might have begun  with smaller molecules interacting with each other in cycles of  reactions. These might have been contained in simple capsules akin to  cell membranes, and over time more complex molecules that performed  these reactions better than the smaller ones could have evolved,  scenarios dubbed “metabolism-first” models, as opposed to the  “gene-first” model of the “RNA world” hypothesis.

Panspermia
Perhaps life did not begin on Earth at all, but was brought here from elsewhere in space, a notion known as panspermia. For instance, rocks regularly get blasted off Mars by cosmic impacts, and a number of Martian meteorites have been found on Earth that some researchers have controversially suggested brought microbes over here, potentially making us all Martians originally. Other scientists have even suggested that life might have hitchhiked on comets from other star systems. However, even if this concept were true, the question of how life began on Earth would then only change to how life began elsewhere in space.
Image Credits: NASA/JPL, stock.xchng, Chemistry, MARUM, Eric Rignot & NASA JPL, © Yunxiang987 | Dreamstime.com, © Mark Rasmussen | Dreamstime.com

    deconversionmovement:

    7 Theories on the Origin of Life

    Primordial soup

    Life on Earth began more than 3 billion years ago, evolving from the most basic of microbes into a dazzling array of complexity over time. But how did the first organisms on the only known home to life in the universe develop from the primordial soup? Here are science’s theories on the origins of life on Earth.

    Electric Spark

    Electric sparks can generate amino acids and sugars from an atmosphere loaded with water, methane, ammonia and hydrogen, as was shown in the famous Miller-Urey experiment reported in 1953, suggesting that lightning might have helped create the key building blocks of life on Earth in its early days. Over millions of years, larger and more complex molecules could form. Although research since then has revealed the early atmosphere of Earth was actually hydrogen-poor, scientists have suggested that volcanic clouds in the early atmosphere might have held methane, ammonia and hydrogen and been filled with lightning as well.

    Community Clay

    The first molecules of life might have met on clay, according to an idea elaborated by organic chemist Alexander Graham Cairns-Smith at the University of Glasgow in Scotland. These surfaces might not only have concentrated these organic compounds together, but also helped organize them into patterns much like our genes do now.

    The main role of DNA is to store information on how other molecules should be arranged. Genetic sequences in DNA are essentially instructions on how amino acids should be arranged in proteins. Cairns-Smith suggests that mineral crystals in clay could have arranged organic molecules into organized patterns. After a while, organic molecules took over this job and organized themselves.

    Deep-Sea Vents

    The deep-sea vent theory suggests that life may have begun at submarine hydrothermal vents, spewing key hydrogen-rich molecules. Their rocky nooks could then have concentrated these molecules together and provided mineral catalysts for critical reactions. Even now, these vents, rich in chemical and thermal energy, sustain vibrant ecosystems.

    Chilly Start

    Ice might have covered the oceans 3 billion years ago, as the sun was about a third less luminous than it is now. This layer of ice, possibly hundreds of feet thick, might have protected fragile organic compounds in the water below from ultraviolet light and destruction from cosmic impacts. The cold might have also helped these molecules to survive longer, allowing key reactions to happen.

    RNA World

    Nowadays DNA needs proteins in order to form, and proteins require DNA to form, so how could these have formed without each other? The answer may be RNA, which can store information like DNA, serve as an enzyme like proteins, and help create both DNA and proteins. Later DNA and proteins succeeded this “RNA world,” because they are more efficient. RNA still exists and performs several functions in organisms, including acting as an on-off switch for some genes. The question still remains how RNA got here in the first place. And while some scientists think the molecule could have spontaneously arisen on Earth, others say that was very unlikely to have happened. 

    Other nucleic acids other than RNA have been suggested as well, such as the more esoteric PNA or TNA.

    Simple Beginnings

    Instead of developing from complex molecules such as RNA, life might have begun with smaller molecules interacting with each other in cycles of reactions. These might have been contained in simple capsules akin to cell membranes, and over time more complex molecules that performed these reactions better than the smaller ones could have evolved, scenarios dubbed “metabolism-first” models, as opposed to the “gene-first” model of the “RNA world” hypothesis.

    Panspermia

    Perhaps life did not begin on Earth at all, but was brought here from elsewhere in space, a notion known as panspermia. For instance, rocks regularly get blasted off Mars by cosmic impacts, and a number of Martian meteorites have been found on Earth that some researchers have controversially suggested brought microbes over here, potentially making us all Martians originally. Other scientists have even suggested that life might have hitchhiked on comets from other star systems. However, even if this concept were true, the question of how life began on Earth would then only change to how life began elsewhere in space.

    Image Credits: NASA/JPL, stock.xchng, Chemistry, MARUM, Eric Rignot & NASA JPL, © Yunxiang987 | Dreamstime.com, © Mark Rasmussen | Dreamstime.com


    (via academicatheism)

  6. Definitely what I study in school!

    You all should check it out!

  7. lordshivasdance:
  8. ohhfrontier:

All of my brewing equipment. #coffee (Taken with instagram)

sexy!

    ohhfrontier:

    All of my brewing equipment. #coffee (Taken with instagram)

    sexy!

    (via )

  9. “Baalbek Café”

    beautiful

    (via teatumbler)

  10. „The oldest and strongest emotion of mankind is fear, and the oldest and strongest kind of fear is fear of the unknown.“

    – H.P. Lovecraft (via hellyeahhorrormanga)

    (Source: spiraphobia)