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19 September 2014
Immortal Souls
This is an aquatic flatworm called a planarian with a bellyful of green fluorescent bacteria. Planarians posses a truly enviable trait: immortality. Astonishingly, they can’t die of old age because of an extraordinary ability to regenerate. Not only that, they can resist bacteria that are harmful, even fatal, to humans. Striving to understand the planarian’s impressive immune defence, researchers have infected the planarian with bacteria that are dangerous in humans, such as the species that causes tuberculosis, and studied the genes the worm activated. They identified 18 genes that make it resistant to these harmful organisms and focused on one gene in particular, MORN2. Later, the team switched on this MORN2 gene in a type of human white blood cell (a macrophage). These white blood cells could efficiently eliminate the TB-bacteria, bringing the possibility of new ammunition to fight against bacteria-borne diseases. But oh, to be a planarian!
Written by Nick Kennedy
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Image by Eric Ghigo and Sophie PagnottaAix-Marseille UniversityOriginally published under a Creative Commons Licence (BY 4.0)Research published in Cell Host and Microbe, September 2014
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fromquarkstoquasars:

Scientists Find Water Vapor on Planet 729 Trillion Miles Away
A new milestone in the search for life as we know it…http://bit.ly/ZNuPw5
mindblowingscience:

A Fun Way of Understanding E=mc²

Many people fail to realize just how much energy there is locked up in matter. The nucleus of any atom is an oven of intense radiation, and when you open the oven door, that energy spills out; oftentimes violently. However, there is something even more intrinsic to this aspect of matter that escaped scientists for years.
It wasn’t until the brilliance of Albert Einstein that we were able to fully grasp this correlation between mass and energy. Enter E=mc2. This seemingly simple algebraic formula represents the correlation of energy to matter (energy equivalence of any given amount of mass). Many have heard of it, but not very many understand what it implies. Many people are unaware of just how much energy is contained within matter. So, for the next few minutes, I will attempt to convey to you the magnitude of your own personal potential energy equivalence.
First, we must break down this equation. What do each of the letters mean? What are their values? Let’s break it down from left to right:
E represents the energy, which we measure in Joules. Joules is an SI measurement for energy and is measured as kilograms x meters squared per seconds squared [kg x m2/s2]. All this essentially means is that a Joule of energy is equal to the force used to move a specific object 1 meter in the same direction as the force.
m represents the mass of the specified object. For this equation, we measure mass in Kilograms (or 1000 grams).
c represents the speed of light. In a vacuum, light moves at 186,282 miles per second. However in science we utilize the SI (International System of Units), therefore we use measurements of meters and kilometers as opposed to feet and miles. So whenever we do our calculations for light, we use 3.00 × 108ms-1, or rather 300,000,000 meters per second.
So essentially what the equation is saying is that for a specific amount of mass (in kilograms), if you multiply it by the speed of light squared (3.00×108)2, you get its energy equivalence (Joules). So, what does this mean? How can I relate to this, and how much energy is in matter? Well, here comes the fun part. We are about to conduct an experiment.

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joelbearstudios:









Adventure is out there and waiting to be explored. Lets chase it together. Did you know we sell prints of our work?http://www.joelbearstudios.com/prints/
I just wanna hug da widdo baby, he look do sad :-(

is it possible to get the whole day off for your birthday?

no.
(applying this to school… and NO BREAKS).

saevitas:

be an atheist, be a christian, be buddhist, be straight, be gay, be cisgender, be transgender, be non-binary, be carnivore, be vegan, be whatever the hell you want to be but don’t be an asshole is this so hard to understand

(via symphonyofwolves)