Victim of Volcano Eruption in Pompeii 79 AD
Victim of Volcano Eruption in Pompeii 79 AD
Hours Worked On Minimum Wage In Order To Pay For One University Credit Hour
I love when parents and other older individuals are like oh college was expensive for us too and look we got through it just fine!!
this is how we should measure tuition rates
Because you just need this gifset of Linda Blair having her demonic contacts inserted on the set of The Exorcist
This is Your Brain on Engineering (GoldieBlox Easter PSA)
At age 2, girls start to identify with their gender. Or, more accurately, all kids start to understand that they have a gender, and become more aware of the social influences for how they should act as a result. In our culture, there are narrow blueprints called “boy” and “girl” that dictate to us all what is and is not the “right” way to act. These blueprints are pretty limiting — “boys don’t cry” and “girls are princesses” aren’t exactly the greatest life mottos. Gendered influences come from everywhere around kids: their parents, their friends, their teachers, the games they play, the movies they watch, the books they read… the list is endless, and all of it sends a message, sometimes negative and often limiting, about what is and isn’t a “girl thing” or a “boy thing.”
I wish I had these when I was a kid, or at least some kinex sheesh.
working on a piece to go with this
Guys, guys, guys, you need to start following beneviolentskytreader for some kickass artwork. I mean it. Look at that. I started following Beneviolent ages ago, and basically get these sweet artworks on my dash that are always interesting and beautiful and brighten my day or leave me thinking or have me staring for ages (like this one did).
Go check them out!
Sometimes the view under an electron microscope can be positively scary. I’ll be scrolling along at low magnification, checking out some nanoscale features, when all of a sudden a colossus will loom huge above the nanolandscape. Sometimes I actually jump. Usually it’s a tiny microscopic speck of dust, shaped like a mountain or a monster or a sail. This is one of the largest I’ve seen, maybe a clothing fiber or a carpet fiber - it’s maybe 1/5 the thickness of a single hair. Fortunately, this monster’s presence wasn’t a problem, since I was only testing an etching recipe.
THE ECOLOGY OF BACTERIOPHAGES
Studies have shown that bacteriophages (viruses that attack bacteria) are numerically the most abundant biological entities on the planet. [Bacteria themselves are the most abundant life form.]
In shotgun sequencing of marine samples, the majority of phage gene sequences are invariably found to be novel (that is, they don’t correspond to any already known gene sequences).
Hence, the bulk of genetic diversity on the planet may well be tied up in viral/phage “dark matter.” (source)
HOW PHAGES WORK
Phages are quite specific. They attack only the strain of bacteria they evolved to inhabit and kill. And they only attack bacteria: other types of organisms lack the receptors required for phage infection.
No currently known bacteria are unaffected by phages. (This isn’t saying a lot, since we now know that most bacteria aren’t able to be studied in lab conditions.)
- [Image 1] Phages first attach to and puncture the bacterial membrane. Phage DNA is injected into the host cell. © Medi-Mation Ltd/Science Source
- [Image 2] The host cell’s DNA transcription is suppressed, and phage-specific proteins are synthesized instead. © Medi-Mation Ltd/Science Source
- [Image 3] New phages are assembled, the host cell membrane is disrupted, and large numbers of new phages are released from the host bacterium, which dies. © Medi-Mation Ltd/Science Source
There are somewhere between 1030 and 1032 phages in the biosphere.
It’s estimated that there are 1023 phage infections of bacteria every second.
In the course of any given 48 hour period, about half the total number of bacteria then living are destroyed by phages. This dynamic occurs in all ecosystems.
Phages have infected bacteria for billions of years, and just as bacteria mutate to resist drugs, they also mutate to render phages ineffective. However, new phages continually evolve against the mutated bacteria.
Kidney Stone Under Microscope
Scanning electron micrograph of a kidney stone (nephrolithiasis). Kidney stones form when salts, minerals and chemicals in the urine (for example calcium, oxalate and uric acid) crystallise and solidify. Small kidney stones are often passed naturally but larger stones can sometimes get lodged in the kidney or other parts of the urinary tract. Size of stone is 2 mm.
Image Credit: Kevin Mackenzie, University of Aberdeen/Wellcome Images
More images from the Wellcome Image Awards 2014: http://is.gd/gR8BuV
from Hashem AL-ghaili
yo yo supp ma real pimp
CRACK by Stepanka Jislova