PSA.

satsekhem:

You are not stupid or dumb for needing to ask a beginner question. It means you are abeginnerand need assistance. And anyone who tells you that you are dumb or stupid? Then they’re assholes and they’re not worth your time.

20

July

126 notes

This text was reblogged from neurocybernetics and originally by satsekhem.

scienthusiasts:

You gotta admit, some of these are pretty cute.

Source: gisetc.com

18

July

783 notes

This photo was reblogged from organicalchemist and originally by scienthusiasts.

I know you read fantasy but do you read science fiction? If yes what are you favorite books, authors?

Anonymous

I have a list of science fiction books that I am meaning to read.  I remember reading Christopher Pike books when I was younger (some of his work is science fiction, some of it is not…) and loving them.  There are so many books and not nearly enough time to read them. :( 

aruzennnn:

Determination of glucose levels experiment :) pretty colors.

aruzennnn:

Determination of glucose levels experiment :) pretty colors.

16

July

59 notes

This photo was reblogged from aruzennnn and originally by aruzennnn.

"A single ray of light from a distant star falling upon the eye of a tyrant in bygone times, may have altered the course of his life, may have changed the destiny of nations, may have transformed the surface of the globe, so intricate, so inconceivably complex are the processes of nature."

-

Nikola Tesla

(via elucipher)

(Source: inthenoosphere)

15

July

3,199 notes

This quote was reblogged from asapscience and originally by inthenoosphere.

centralscience:

Testing if some small vials were quartz or glass. Quartz transmits UV light, whereas glass will block it. I need quartz vials for an experiment involving photodegradation.

15

July

139 notes

This photo was reblogged from brainsx and originally by centralscience.

mpdrolet:

The Eiffel tower struck by lightning, 1902
Gabriel Loppé

mpdrolet:

The Eiffel tower struck by lightning, 1902

Gabriel Loppé

15

July

6,343 notes

This photo was reblogged from organicalchemist and originally by mpdrolet.

I've had male friends in engineering/computing sciences tell me tell me that I went into biology because it's the "softest" science and that I couldn't do what they do.

oxidoreductase

anndruyan:

shychemist:

Ugh.

Its sad that this kind of attitude is still so prevalent. The concept of a field of science as more manly or that could be only done by a man needs to be destroyed. Gender roles make me upset. :(

I try my best not to think like this, but I’ll admit this mindset slips through once in a while. I try not to think like this because it happens in almost every STEM field.

I’ve even considered switching to pure physics instead of going for an astrophysics undergrad degree because I’ve had male colleagues tell me astro is popular among women for being the easiest physics. Screw that.

I just ignore that mindset and remember that “easiness” is subjective, and while there are “hard” and “soft” sciences and even though I’m considered to be in a “hard” science I can’t for the life of me remember biological concepts.

15

July

150 notes

This answer was reblogged from anndruyan and originally by shychemist.

Ask me anything

this is my favorite thing on earth

15

July

480,751 notes

This photo was reblogged from cosmicbeachparty and originally by mmxasfuck.

scinerds:

Incredibly Small: Best Microscope Photos of the Year

(Click each image for short details)

Every year for nearly four decades, Nikon has received hundreds of entries in its Small World microscope photography contest. Every year, the images are more amazing, and this year’s winners — selected from nearly 2,000 submissions — are undoubtedly the best yet.

Super-close-ups of garlic, snail fossils, stinging nettle, bat embryos, bone cancer and a ladybug are among the top images this year. The first place winner (above) shows the blood-brain barrier in a living zebrafish embryo, which Nikon believes is the first image ever to show the formation of this barrier in a live animal.

“We used fluorescent proteins to look at brain endothelial cells and watched the blood-brain barrier develop in real-time,” the winners, Jennifer Peters and Michael Taylor of St. Jude Children’s Research Hospital, in Memphis, said in a press release. “We took a 3-dimensional snapshot under a confocal microscope. Then, we stacked the images and compressed them into one – pseudo coloring them in rainbow to illustrate depth.”

Here are the top 20 photomicrographs from the 38th Nikon Small World competition, selected for their originality, informational content, and visual impact by a panel of scientists, journalists and optical imaging experts. — Continue over at WiredScience

15

July

6,317 notes

This photo was reblogged from iarrthoireolais and originally by scinerds.

nubbsgalore:

tree frog and tree python are totes besties. photos by fahmi bhs (previously featured) in jakarta (more precious lil buddies)

15

July

11,532 notes

This photo was reblogged from amalgamads and originally by nubbsgalore.

#snake

for-science-sake:

A multitude of butterflies and their beautiful wings under the microscope. 

[Source]

15

July

10,459 notes

This photo was reblogged from kem-ist and originally by for-science-sake.

spaceplasma:

Spectroscopy and the Birth of Astrophysics

The 3D animation (above) depicts how the light of a distant star is studied by astronomers. The spectrum of the light provides vital information about the composition and history of stars. Now, let’s look into the history of stellar spectroscopy.

In 1802, William Wollaston noted that the spectrum of sunlight did not appear to be a continuous band of colours, but rather had a series of dark lines superimposed on it. Wollaston attributed the lines to natural boundaries between colours. Joseph Fraunhofer made a more careful set of observations of the solar spectrum in 1814 and found some 600 dark lines, and he specifically measured the wavelength of 324 of them. Many of the Fraunhofer lines in the solar spectrum retain the notations he created to designate them. In 1864, Sir William Huggins matched some of these dark lines in spectra from other stars with terrestrial substances, demonstrating that stars are made of the same materials of everyday material rather than exotic substances. This paved the way for modern spectroscopy.

Since even before the discovery of spectra, scientists had tried to find ways to categorize stars. By observing spectra, astronomers realized that large numbers of stars exhibit a small number of distinct patterns in their spectral lines. Classification by spectral features quickly proved to be a powerful tool for understanding stars.

The current spectral classification scheme was developed at Harvard Observatory in the early 20th century. Work was begun by Henry Draper who photographed the first spectrum of Vega in 1872. After his death, his wife donated the equipment and a sum of money to the Observatory to continue his work. The bulk of the classification work was done by Annie Jump Cannon from 1918 to 1924. The original scheme used capital letters running alphabetically, but subsequent revisions have reduced this as stellar evolution and typing has become better understood.

While the differences in spectra might seem to indicate different chemical compositions, in almost all instances, it actually reflects different surface temperatures. With some exceptions (e.g. the R, N, and S stellar types), material on the surface of stars is “primitive”: there is no significant chemical or nuclear processing of the gaseous outer envelope of a star once it has formed. Fusion at the core of the star results in fundamental compositional changes, but material does not generally mix between the visible surface of the star and its core. Ordered from highest temperature to lowest, the seven main stellar types are O, B, A, F, G, K, and M. Astronomers use one of several mnemonics to remember the order of the classification scheme. O, B, and A type stars are often referred to as early spectral types, while cool stars (G, K, and M) are known as late type stars.

Scientists assumed that the spectral classes represented a sequence of decreasing surface temperatures of the stars, but no one was able to demonstrate this quantitatively. Cecilia Payne, who studied the new science of quantum physics, knew that the pattern of features in the spectrum of any atom was determined by the configuration of its electrons. She showed that Cannon’s ordering of the stellar spectral classes was indeed a sequence of decreasing temperatures and she was able to calculate the temperatures.

  • More information: here

Credit: ESO, Jesse S. Allen

15

July

763 notes

This photo was reblogged from scienthusiasts and originally by spaceplasma.

adventuresinchemistry:

Just once I want a TV character to ask the token science person to run a spectral analysis to identify something and then for the science person to give the sample back and tell them they can’t because they’re not an analytical chemist.

15

July

323 notes

This text was reblogged from chemicalelementaryschool and originally by adventuresinchemistry.

(Source: beveledeggs)

15

July

117 notes

This photo was reblogged from ptolemy2 and originally by beveledeggs.

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