😈 [http://bit.ly/2jn9ubb]

hey guys!! it has been a while :’))

however, i have finished my first semester of chemistry (pre-ib) and i felt as if that i did pretty well in this subject even though i had minimal background knowledge on it. i initially struggled with the concepts we did, but after studying hard and trying my best i have gotten used to it and have been improving so here are my tips and tricks for chemistry!

please understand that i have not been through all the topics in chemistry, i have only learnt about atomic structure, periodicity and bonding so my links and tips may only help you for those topics but they should help with the other topics also. (this is most likely a general chemistry masterpost btw)

important study tips:

ask questions in class!!!!!! this is incredibly important, as also for every subject but if you don’t understand the concept you will struggle like how i did in the beginning :( if you are too shy to ask your question in front of the class, go up to the teacher when you have some time or even email them. even just ask your friends or classmates who may have a better understanding of the concept, it definitely helps having different explanations on the same topic, having different perspectives and all

find good resources, go through past tests, past exams and worksheets so that you can have good practice of what may come in your tests and exams. my teacher was very organised and had plenty of resources for me to use to revise and learn in my spare time out of class. it also gave me the experience of the ib tests and exams so i knew what was to come

as said in my maths masterpost, try teaching others when they need help (if you understand the topic and they don’t) because this really seems to help me when studying for tests, i helped my friend with her questions about atomic structure and found myself learning and revising at the same time because of this

repetition!!! you may not get it right the first time, or even the second, but after lots of tries and times you will get there!! trust me :’))

if you don’t have resources, go search for some. there are plenty of studyblrs who do chem as a subject and im sure they are more than happy to help you (me too but i haven’t through many of the topics lol) once you have been through all the past papers you own, go google for some, especially ib kids, theres some out there for you!

have a periodic table with you at all times when studying chem! its a bit obvious but you would most likely need it

apps + websites: 

periodic table apps (there is loads on the app stores but here are some i found)

periodic table [ android | ios ] very indepth and informative (glad i just found this one, im downloading it rn)

periodic table (this one is different) [ android | ios ]

there is plenty, so find the app which suits you and your learning needs

molview (this website allows you to draw molecules!!)

ibchem.com for my fellow ib chem students, this website has notes and other resources to help you with your studies

2016 ib data booklet (there is probably going to be a 2017 one soon but anyways this will be useful

khan academy chemistry (honestly this website is a blessing to all students, so helpful !!!!)

sparknotes chem

other chemistry masterposts:

chemistry by @areistotle​ 

ap chemistry by @etudiance​

chemistry resource masterpost originally by @physicnerd

general chemistry masterpost by @ellielearnsthings​

my other masterposts:

chinese masterpost

app masterpost

bullet journaling

maths masterpost

advice for new studyblrs

physics masterpost

i hope that these resources and tips will help you in your chemistry studies c:

studygram: acadehmic

Please join the Department of Awesome Natural Phenomena as they marvel at the jaw-dropping sight of a ‘dirty thunderstorm’ taking place above Sicily’s Mount Etna during its latest eruption on December 3, 2015. Mount Etna is the tallest active volcano on the European continent.

A dirty thunderstorm, also known as volcanic lightning, is the result of electrical charges generated by the collision of rock fragments, ash, and ice particles in a volcanic plume. These collision produce a static charge in the same way that colliding ice particles do during regular thunderstorms.

Freelance photographer Marco Restivo captured this incredible image by combining a sequence of five separate photos.

Head over to The Huffington Post for timelapse video and additional images.

[via The Telegraph]

Yes, sure its fun to see a lady spin around like that, but I had one of my friends ask me - “Where do you even use this mate?”

Here’s one application that I know very well off.

Spin Stabilization

If you have ever seen a rocket launch, you might know that sometimes the rockets are given a spin while launching. This is known as spin stabilization.

Basically, the rotational inertia of the rotating body will stabilize the rocket against any disturbances and help maintain its intended heading.

The same principle is used in rifling of firearms as well. **

YoYo DeSpin

Okay, now there is the question how to “De-spin” the rocket:

Well, you do what the lady does: stretch out your arms and you will slow down !

The rocket has weights connected to a cable that stretch out and almost immediately the rocket slows down. This maneuver is known as the YoYo DeSpin. ( Damn good name ! )

All thanks to the conservation of angular momentum !

Have a good one !

* Another method to stabilization : 3-axis stabilization

** Bullets spin stabilization - post

** Source rocket launch video

https://www.nasa.gov/exploration/systems/sls/major-review-completed-for-new-sls-exploration-upper-stage

SLS’s Exploration Upper Stage completes its Preliminary Design Review

The Magnus Effect - When a small amount of spin is added to a dropped object, the object moves forward

Victoria LaBarre was climbing out of a canyon and into a bright, vast, seemingly lifeless landscape when she started to experience an astronaut’s nightmare.

“Suddenly,” she said, “I couldn’t breathe.”

The symptoms were real — maybe from claustrophobia, or from exertion at high altitude. But LaBarre didn’t unlatch her helmet to get a breath of fresh air because, in this simulated Mars exercise in the Utah desert, she was supposed to be an astronaut. The canyon was standing in for Candor Chasma, a 5-mile-deep gash in the Red Planet’s surface. On Mars, there’s no oxygen in the air — you do not take off your helmet.

So, instead, LaBarre radioed for help from fellow members of Crew 177. The team of students and teachers from a Texas community college had applied together to live and work for a week this spring in a two-story metal cylinder at the privately run Mars Desert Research Station near Hanksville, Utah.

Elijah Espinoza, a freshman assigned to be a crew engineer and geologist for the week, heard LaBarre’s call and walked her through some breathing exercises.

“I think that’s really one of the best things about Mars — the teamwork,” said LaBarre.“I don’t think you could live without it.”

To Prepare For Mars Settlement, Simulated Missions Explore Utah’s Desert

Photos: Rae Ellen Bichell/NPR

Why the fuck would you taste it?!

The extent of humanitys mark on our Universe

js

Technology then and now

The Chimaera, known informally as the “ghost shark” or “rat fish”, is a deep sea cartilaginous fish in the order Chimaeriformes. Living at over 8,000 ft below the surface, the Chimaera is well adapted to the deep, dark sea. The dots on its nose are sensory organs that detect electrical fields in the water - helping the Chimera find its prey. While little is known about the Chimaera’s diet, it’s speculated that it feeds on molluscs and crustaceans that it crushes open with the grinding plates in its mouth. The spines on the top of its body are loaded with venom; the Chimaera uses these spines to defend itself.