The Science of Time

Hey, I'm Harry. Just another highschool student with a science obssession and a blog. Chemistry, Physics and maths are my mains and with them I hope to study electrical and electronics engineering at the University of Adelaide (did I mention I am Australian!). So yeah feel free to message me anytime if you are curious or just need a friend. Disclosure: I am a highschool student not a PhD
utcjonesobservatory:

X-Ray View Of The Crab Nebula
In 1054 AD, Chinese astronomers and others around the world noticed a new bright object in the sky. This “new star” was, in fact, the supernova explosion that created what is now called the Crab Nebula. At the center of the Crab Nebula is an extremely dense, rapidly rotating neutron star left behind by the explosion. The neutron star, also known as a pulsar, is spewing out a blizzard of high-energy particles, producing the expanding X-ray nebula seen by Chandra. In this new image, lower-energy X-rays from Chandra are red, medium energy X-rays are green, and the highest-energy X-rays are blue.
 Caption: NASA  NASA/CXC/SAO

utcjonesobservatory:

X-Ray View Of The Crab Nebula

In 1054 AD, Chinese astronomers and others around the world noticed a new bright object in the sky. This “new star” was, in fact, the supernova explosion that created what is now called the Crab Nebula. At the center of the Crab Nebula is an extremely dense, rapidly rotating neutron star left behind by the explosion. The neutron star, also known as a pulsar, is spewing out a blizzard of high-energy particles, producing the expanding X-ray nebula seen by Chandra. In this new image, lower-energy X-rays from Chandra are red, medium energy X-rays are green, and the highest-energy X-rays are blue.

 Caption: NASA
 
NASA/CXC/SAO

(via fuckyeahcelestialthings)

labphoto:

Distillation of a slightly decomposed perfluoroalkyl iodide.

Upon standing alkyl halides, especially iodides could decompose to give elemental iodine and a lot unwanted stuff. From time to time these decomposition products could be removed with fractional distillation if we are enough lucky. In this case a little iodine was left in distillate (as seen on the pictures).  

Did you know that Perflubron (perfluorooctyl bromide) has been used in liquid breathing in premature infants with respiratory distress since oxygen dissolves pretty well in these perfluorinated compounds. 

(via starlightwaters)

andromeda1023:

alanfriedman:

… also comes in blue. 

Grand sunspot 2192 imaged in CaK, a spectral band 2.2 angstroms wide, centered at 393.37nm…10/19/14  Alan Friedman

andromeda1023:

alanfriedman:

… also comes in blue

Grand sunspot 2192 imaged in CaK, a spectral band 2.2 angstroms wide, centered at 393.37nm…10/19/14  Alan Friedman

startswithabang:

Messier Monday: The Eagle Nebula, M16

"The Eagle Nebula isn’t the brightest nebula in the sky, nor the closest, nor the youngest, nor is it the largest. In fact, it doesn’t even hold any of those distinctions among nebulae in the Messier Catalogue, of which there are only seven!

But the reason this object is so spectacular isn’t because of how extreme it is in any particular way, but because it simultaneously illustrates all of the different stages that occur in a star-forming region.”

The formation of new stars happens in stages: cold molecular gas clouds contract and collapse under their own gravity, forming proto-stars in the densest regions that grow to undergo nuclear fusion. The new stars then emit ionizing radiation, and burn off the rest of the nebula, leaving a young star cluster behind. For the most part, we observe this story in different stages when we look at different objects, but there’s one place in our galaxy where the entire story is being told all at once. It’s the Eagle Nebula: the one place in our galaxy that showcases all the stages of star formation simultaneously!

(via andromeda1023)

astro-feminist:

Mysterious Changing feature on Titan 

Explanation: What is that changing object in a cold hydrocarbon sea of Titan? Radar images from the robotic Cassini spacecraft orbiting Saturn have been recording the surface of the cloud-engulfed moon Titan for years. When imaging the flat — and hence radar dark — surface of the methane and ethane lake called Ligeia Mare, an object appeared in 2013 just was not there in 2007. Subsequent observations in 2014 found the object remained — but had changed! The featured image shows how the 20-km long object has appeared and evolved. Current origin speculative explanations include bubbling foam and floating solids, but no one is sure. Future observations may either resolve the enigma or open up more speculation.

astro-feminist:

Mysterious Changing feature on Titan 

Explanation: What is that changing object in a cold hydrocarbon sea of Titan? Radar images from the robotic Cassini spacecraft orbiting Saturn have been recording the surface of the cloud-engulfed moon Titan for years. When imaging the flat — and hence radar dark — surface of the methane and ethane lake called Ligeia Mare, an object appeared in 2013 just was not there in 2007. Subsequent observations in 2014 found the object remained — but had changed! The featured image shows how the 20-km long object has appeared and evolved. Current origin speculative explanations include bubbling foam and floating solids, but no one is sure. Future observations may either resolve the enigma or open up more speculation.

(via 1998bl11)