amnhnyc:

Three-dimensional scans of two mummified newborn woolly mammoths recovered from the Siberian Arctic are revealing previously inaccessible details about the early development of prehistoric proboscideans. The research, conducted in part by American Museum of Natural History Richard Gilder Graduate School student Zachary T. Calamari, also suggest that both animals died from suffocation after inhaling mud. The findings were published July 8 in a special issue of the Journal of Paleontology.

“These two exquisitely preserved baby mammoths are like two snapshots in time,” said Calamari, who began investigating mammoths as an undergraduate at the University of Michigan working with paleontologist Daniel Fisher. “We can use them to understand how factors like location and age influenced the way mammoths grew into the huge adults that captivate us today.” 

Learn more. 

Aw yeah, CT scanning!

(via somedeadthings)

mathhombre:

spring-of-mathematics:

Type of Spirals: A spiral is a curve in the plane or in the space, which runs around a centre in a special way.
Different spirals follow. Most of them are produced by formulas:The radius r(t) and the angle t are proportional for the simplest spiral, the spiral of Archimedes. Therefore the equation is:
(3) Polar equation: r(t) = at [a is constant].
From this follows
(2) Parameter form:  x(t) = at cos(t), y(t) = at sin(t),
(1) Central equation:  x²+y² = a²[arc tan (y/x)]².

You can make a  spiral by two motions of a point: There is a uniform motion in a fixed direction and a motion in a circle with constant speed. Both motions start at the same point. 
(1) The uniform motion on the left moves a point to the right. - There are nine snapshots.
(2) The motion with a constant angular velocity moves the point on a spiral at the same time. - There is a point every 8th turn.
(3) A spiral as a curve comes, if you draw the point at every turn(Image).

Figure 1: (1) Archimedean spiral - (2) Equiangular Spiral (Logarithmic Spiral, Bernoulli’s Spiral).
Figure 2 : (1) Clothoide (Cornu Spiral) - (2) Golden spiral (Fibonacci number).

More Spirals: If you replace the term r(t)=at of the Archimedean spiral by other terms, you get a number of new spirals. There are six spirals, which you can describe with the functions f(x)=x^a [a=2,1/2,-1/2,-1] and  f(x)=exp(x), f(x)=ln(x). You distinguish two groups depending on how the parameter t grows from 0.

Figure 4:  If the absolute modulus of a function r(t) is increasing, the spirals run from inside to outside and go above all limits. The spiral 1 is called parabolic spiral or Fermat’s spiral.
Figure 5: If the absolute modulus of a function r(t) is decreasing, the spirals run from outside to inside. They generally run to the centre, but they don’t reach it. There is a pole.  Spiral 2 is called the Lituus (crooked staff).

Figure 7: Spirals Made of Line Segments.

Source:  Spirals by Jürgen Köller.

See more on Wikipedia:  SpiralArchimedean spiralCornu spiralFermat’s spiralHyperbolic spiralLituus, Logarithmic spiral
Fibonacci spiral, Golden spiral, Rhumb line, Ulam spiral
Hermann Heights Monument, Hermannsdenkmal.

Image: I shared at Spirals by Jürgen Köller - Ferns by Margaret Oomen & Ferns by Rocky.

Spiral compulsion. But this is a handy reference.

(via mo-mtn-girl)

nobodysuspectsthebutterfly:

nijuukoo:

kimberlyspeter:

luftkissenfahrzeug:

clarri:

wowfunniestposts:

Harry Potter and the Chamber of Calculus
Harry Potter and the Prisoner of Algebra
Harry Potter and the Philosopher’s Theorem
Harry Potter and the Goblet of Analysis
Harry Potter and the Order of Operations
Harry Potter and the Half-Blood Statistician
Harry Potter and the Deathly Algorithms

OH MY FUCKING GOD

AND THE ORDER OF OPERATIONS 

I’m in Dumbledores math club…

More like Harry Hypotternuse.


You’re a mathemagician, Harry.

It’s AL-gebra not al-GE-bra.

nobodysuspectsthebutterfly:

nijuukoo:

kimberlyspeter:

luftkissenfahrzeug:

clarri:

wowfunniestposts:

Harry Potter and the Chamber of Calculus

Harry Potter and the Prisoner of Algebra

Harry Potter and the Philosopher’s Theorem

Harry Potter and the Goblet of Analysis

Harry Potter and the Order of Operations

Harry Potter and the Half-Blood Statistician

Harry Potter and the Deathly Algorithms

OH MY FUCKING GOD

AND THE ORDER OF OPERATIONS

I’m in Dumbledores math club…

More like Harry Hypotternuse.

You’re a mathemagician, Harry.

It’s AL-gebra not al-GE-bra.

(via rainbowdracula)

markscherz:

sweetteascience:

jtotheizzoe:

sagansense:

scinote:

Coming soon: SciNote.org, launched by entrop-e, shychemist, and geogallery, is Tumblr’s project for promoting science education around the world.

At SciNote, we believe that science shouldn’t just be reading about the ideas of people with PhDs and Nobel Prizes. We believe that science is an active process of asking questions and finding answers.
That’s why we, at SciNote, want to hear from you. We want to ponder the interesting questions you pose and get excited with you over the cool science you see in your world.
SciNote will feature the best of the Tumblr science community, and we will compile and publish the top posts from every year in the form of a magazine available both digitally and in print. Think of SciNote magazine as the Tumblr science magazine.
We hope to celebrate our launch by featuring some of the coolest science from around Tumblr. So before we launch SciNote, we would like to collect 25 science posts and/or questions from you, including:
the most interesting science news you have come across
questions you’ve always wanted to ask
fascinating facts that you’ve learned
pictures of nature and/or science that you’ve taken
cool research that you’ve participated in
any other science-related thing you’d like to tell us!

So please:
Submit posts or ask questions to be featured on our blog and for an opportunity to be published in SciNote magazine.
Follow our blog at SciNote.org.
Read more about our project here.
If you’re interested, apply to join our staff here.
Reblog this post so that we can collect 25 posts and launch our project as soon as possible!
Thank you all and happy science!


I am so ridiculous excited about this. SciNote and SciNote mag have the ability to truly broadcast our collective Tumblr Science Side Community efforts out into the world in a way no other social media network has ever done. Signal boost this and let’s gooooo….

Well then, here’s a very interesting thing that I will be keeping an eye on and that you should keep an eye on too.

I think I’d very much like to be involved with this! I’ll have to see how my first semester course load goes. I have a seminar/colloquium course that might produce some nice paper/seminar/research summaries that would be appropriate. Go check it out!!

This is the coolest thing since earth circa 110,000-12,000 years before present (the most recent ice age). Holy frak.

Signal boost!!!

markscherz:

sweetteascience:

jtotheizzoe:

sagansense:

scinote:

Coming soon: SciNote.org, launched by entrop-e, shychemist, and geogallery, is Tumblr’s project for promoting science education around the world.

At SciNote, we believe that science shouldn’t just be reading about the ideas of people with PhDs and Nobel Prizes. We believe that science is an active process of asking questions and finding answers.

That’s why we, at SciNote, want to hear from you. We want to ponder the interesting questions you pose and get excited with you over the cool science you see in your world.

SciNote will feature the best of the Tumblr science community, and we will compile and publish the top posts from every year in the form of a magazine available both digitally and in print. Think of SciNote magazine as the Tumblr science magazine.

We hope to celebrate our launch by featuring some of the coolest science from around Tumblr. So before we launch SciNote, we would like to collect 25 science posts and/or questions from you, including:

  • the most interesting science news you have come across
  • questions you’ve always wanted to ask
  • fascinating facts that you’ve learned
  • pictures of nature and/or science that you’ve taken
  • cool research that you’ve participated in
  • any other science-related thing you’d like to tell us!

So please:

  1. Submit posts or ask questions to be featured on our blog and for an opportunity to be published in SciNote magazine.
  2. Follow our blog at SciNote.org.
  3. Read more about our project here.
  4. If you’re interested, apply to join our staff here.
  5. Reblog this post so that we can collect 25 posts and launch our project as soon as possible!

Thank you all and happy science!

image

I am so ridiculous excited about this. SciNote and SciNote mag have the ability to truly broadcast our collective Tumblr Science Side Community efforts out into the world in a way no other social media network has ever done. Signal boost this and let’s gooooo….

Well then, here’s a very interesting thing that I will be keeping an eye on and that you should keep an eye on too.

I think I’d very much like to be involved with this! I’ll have to see how my first semester course load goes. I have a seminar/colloquium course that might produce some nice paper/seminar/research summaries that would be appropriate.
Go check it out!!

This is the coolest thing since earth circa 110,000-12,000 years before present (the most recent ice age). Holy frak.

Signal boost!!!