Loving beards on an unhealthy level

Just humor me and watch this.

(I think it happened because I named my horse Shane via random name generation without thinking about it)

I’m losing my freaking mind.

I googled this to see if it happened to other people. Just read this. 

“Two kids drinking soda.” How did this person get far enough in the game to have a horse…but doesn’t know who Shane is? 

On Diffraction and the Helical structure of DNA

This is the famous Photograph 51, which is the nickname given to an X-ray diffraction image of crystallized DNA taken by Raymond Gosling in May 1952.

Crick and Watson used the features of this photograph to develop the chemical model of the DNA molecule aka Double-helix.

A simple way to understand why a helix structure produces such a diffraction pattern is to take a spring of a ballpoint pen and illuminate with a laser pointer.

Image courtesy of D. Tierney and of H. Schmitzer, Xavier University in Cincinnati

Although the spring is not a Double Helix structure, the diffraction pattern produced as you can see  is very similar to the famous Photo 51 of helical DNA. 

It was also known at that time that DNAs obeyed the Chargaff’s rules: Adenines paired with Thymine and Guanosine  paired with Cytosine.

As James Watson explains in this video, he was trying out different models for the DNA that satisfied Chargaff’s rules and also the Helical structure of DNA as Gosling had found out. This led him to the Double Helix model of DNA.

And this model has stood the test of time. In 2012, an electron microscope  captured the famous Watson-Crick double helix in all its glory asserting that the DNA is indeed a Double Helix.

                              Electron microscope image of DNA

The story of the discovery of DNA and its study is captivating by itself and here’s a list of useful papers and web links if you like to venture more:

 -  Nature podcast of Raymond Gosling discussing the Photograph 51.

-  How Rosalind Franklin Discovered the Helical Structure of DNA: Experiments in Diffraction

-   The DNA Double Helix Discovery — HHMI BioInteractive Video (Includes discussion with Dr.James Watson)

- How we discovered DNA - TED talk by James Watson

- The Discovery of the DNA Double Helix - A historical overview

Have a good one!

345. Skies (4 colour max)

You need to watch the skies for any mysterious presents floating by!

i can’t believe cedric diggory asked voldemort ‘who are you’ lmao. like i know he got killed straight after but still. iconic

reblog for noises

TURN THE SOUND ON FOR THE LOVE OF EVERYTHING GOOD TURN THE SOUND ON

*dry food crunches*

Ridiculously small kitten: “Myam myam myam. Njam njam njam njam njam njam njam! Myam myam myam nyam nyam myam. Mmmam. Mrrrrram. Meep!”

@captioned-vines

self driving cars aren’t even hard to make lol just program it not to hit stuff

if(goingToHitStuff) {

dont();

}

listen binch. no one has an original style. no one pulls a unique style of art out of their ass. we get to where we are through observing others and being influenced by them and that’s how art works

setheverman

Power move

call 911 she’s been shot

Beyonce really said “ten times out of nine I know you’re lying” like yas queen of improper fractions

Snow Leopard on the Prowl by © Abeselom Zerit

Almost all of those tiny photos looks like those people are actually millennials. Which makes this post funnier.

Summer mood. x

It’s gonna be 92 today and I’m feeling this big time

Its been 100 and above this past week. Save us

@roseandrowan