A beautifully animated description of what we know about the creation of the Universe, so far.
We can see most of the how, though who knows how long this can last. Does the universe build in enough time for the beings that study it, to reveal why it happened? We’ll see I guess. :D
Some people recall a dream every morning, whereas others rarely recall one. A team led by Perrine Ruby, an Inserm Research Fellow at the Lyon Neuroscience Research Center (Inserm/CNRS/Université Claude Bernard Lyon 1), has studied the brain activity of these two types of dreamers in order to understand the differences between them. In a study published in the journal Neuropsychopharmacology, the researchers show that the temporo-parietal junction, an information-processing hub in the brain, is more active in high dream recallers. Increased activity in this brain region might facilitate attention orienting toward external stimuli and promote intrasleep wakefulness, thereby facilitating the encoding of dreams in memory.
The reason for dreaming is still a mystery for the researchers who study the difference between “high dream recallers,” who recall dreams regularly, and “low dream recallers,” who recall dreams rarely. In January 2013 (work published in the journal Cerebral Cortex), the team led by Perrine Ruby, Inserm researcher at the Lyon Neuroscience Research Center, made the following two observations: “high dream recallers” have twice as many time of wakefulness during sleep as “low dream recallers” and their brains are more reactive to auditory stimuli during sleep and wakefulness. This increased brain reactivity may promote awakenings during the night, and may thus facilitate memorisation of dreams during brief periods of wakefulness.
In this new study, the research team sought to identify which areas of the brain differentiate high and low dream recallers. They used Positron Emission Tomography (PET) to measure the spontaneous brain activity of 41 volunteers during wakefulness and sleep. The volunteers were classified into 2 groups: 21 “high dream recallers” who recalled dreams 5.2 mornings per week in average, and 20 “low dream recallers,” who reported 2 dreams per month in average. High dream recallers, both while awake and while asleep, showed stronger spontaneous brain activity in the medial prefrontal cortex (mPFC) and in the temporo-parietal junction (TPJ), an area of the brain involved in attention orienting toward external stimuli.
The South African neuropsychologist Mark Solms had observed in earlier studies that lesions in these two brain areas led to a cessation of dream recall. The originality of the French team’s results is to show brain activity differences between high and low dream recallers during sleep and also during wakefulness.
“Our results suggest that high and low dream recallers differ in dream memorization, but do not exclude that they also differ in dream production. Indeed, it is possible that high dream recallers produce a larger amount of dreaming than low dream recallers” concludes the research team.
How Antibodies work.
Your immune system is composed of a fleet of cells designed to keep antigens out. An antigen is anything that causes a specific immune response. Whether that be the H1N1 virus or some Axe cologne. In either case your body will ‘attack’ any antigens on site with the use of antibodies. These are Y shaped structures made by special B cells in your body. Once your body identifies an antigen and a shape to attach to it B cells make the respective antibodies and are released into the blood. These Y shaped antibodies will cause 4 things to happen to the antigens.
Block the binding site of the antigen to prevent future infections
Clump the antigens into clusters
Precipitate them from your blood
Activate the bodies compliment system
#4 refers to special proteins that will create holes in the cell wall of any bacteria that will kill them.
The composition of a water molecule explained in “Beyond the Microscope,” a GE science film from 1922.
This is great! New YouTube channel idea: Vintage science films. I call dibs.
I guess it’s worth noting that this is not at all what electrons actually “look” like or how bonding works, but I don’t really mind for some reason.
Sodium Polyacrylate is capable of absorbing 200 to 300 times its mass in water.
This is one of my favourite polymers…. and is featured in pretty much every single other absorbant polymer gif on this blog.
EMBROIDERED HEART AND LUNGS
One-of-a-kind hand-made embroidery: cotton thread on white cotton canvas, 2004 ||| SOURCE: Andrea Dezso Illustration)
A heart, on valentines day or any other time,
does much better with lungs attached.
UCLA’s Steve Cole from The Social Life of Genes.
Your DNA is not a blueprint. Day by day, week by week, your genes are in a conversation with your surroundings. Your neighbors, your family, your feelings of loneliness: They don’t just get under your skin, they get into the control rooms of your cells.
All the more reason to surround yourself with people who you enjoy(via brains-and-bodies)
WARNING: Not Safe for Work … or for Your Exam in Hematology
The Morphology of Human Blood Cells (1956)
Dorothy Sturm’s beautiful watercolors are difficult to distinguish from an actual microphotograph (except perhaps they are clearer and more detailed than a micrograph, and certainly superior to images from the 1950’s).
Sturm’s watercolor on paper illustrations, drawn directly from Wright-stained smears prepared by [microbiologists], depicted normal, pathological and infectious hematology with a clarity, detail and beauty that photomicrography of the 1950’s simply couldn’t approach. JAMA, in a review of the first edition, even called her work “of exceptional quality.”
 This table showing hematopoiesis (as it was understood in 1956) was the frontispiece of the first edition of Diggs’ The Morphology of Human Blood Cells. Here’s the key to this illustration.
 Cell types found in smears of peripheral blood from normal individuals
 Blood parasites
 Fat cells
 Megakarocytes and thrombocytes
SOURCE: Codex 99
Body Bakery: Bread imitating Gore by Kittiwat Unarrom
This brings weird to a whole new level. Thai Fine Art student and artist Kittiwat Unarrom is the son of a baker. All that baking exposure growing up has been a clear influence, but his artistic need to see things a little differently definitely flared up as he created the tacitly named “Body Bakery” – brutally, gruesomely, almost unbelievably realistic looking sculptures of dismembered human body parts sculpted entirely from bread.
With a master in Fine Arts Kittiwat Unarrom creates sculpture in bread. Not just normal sculpture but horror, dark art, gore, something I don’t know if I could actually eat. Located in Ratchaburi, Thailand Kittiwat creates feet, hands, heads, and internal organs among other body parts all entirely edible and for sale at his family’s bakery. He skillfully paints each piece to look terrifying to the observer/customer.
my tummy was making the rumblies that only hands could satisfy
THIS IS SO COOL