hello friends!!! i made masterposts for almost all the stem subjects now, why not physics too? here you go [especially for @k-imeme]:
studying
how to study physics
tips to solving physics problems
tips to ace your physics exam!!
physics notes
using a calculator!!!!
science glossary
topics
motion
sound + waves
work, energy + power
heat + thermo
quantum phenomena
light + radiation
electricity, magnets + circuits
electricity + magnetism
mechanics
modern physics
optics
oscillations + waves
special subjects [space is here too]
thermodynamics
fun stuff yaaas
john travoltage [i love this idk why]
10 cool science websites
links + website resources
space + the universe masterpost B-)
minutephysics
physics on khanacademy
sparknotes physics
great physics website!!
institute of physics resources
stuff you may want to know
careers in physics
why study physics?
top 10 reasons why you should take physics
my masterposts
notes, studying, and self-study resources
self-study resources
supplies
igcse resources
improving your handwriting
how to studyblr
literature masterpost
organisation
aesthetically pleasing notes
annotating
studying a foreign language
really great apps
math
college + uni
motivation
biology
space!!!!
chemistry
+ more
hope this helps you v much + if you ever need anything/want to request a masterpost just message me :]
This is just one way you can set up a research journal but it's helping me tremendously so maybe it also works for you. My set-up is partially inspired by this video by Answer in Progress and I suggest you check out their curiosity journal.
First you need a notebook. The trick is to find a notebook that you're not afraid to "ruin". We all want a really neat, aesthetic research journal, but the reality looks more like hasty scribbles, but that's okay, that's where the research breakthroughs happen.
I personally bought a cheap lined notebook from Søstrene Grene that I thought looked cute and put a sticker on it. That way I feel good about using it but I also don't mind when my handwriting gets messy because it was only like 3€.
You should also stock up on pens you like writing with. Different colour highlighters and post-its are also a good idea but not a must. Keep it cheap but comfortable.
Here you should put down all the really important information: year, title, deadlines, word count, supervisors. Maybe add an inspirational quote to spice it up but keep it simple and relevant.
This should either be your next or your last page. I personally use the last pages of my journal so I can add thing and find it easier. Your key is there to list abbreviations and symbols.
For example, I have different symbols for statistics, dates, new terminology, questions, breakthroughs, important notes and abbreviations for the most important terms in my field. It's shorter to write T9N than Translation.
The trick here is to have enough abbreviations and symbols to save time and effort but not so many that you constantly have to look back and forth between your page and key. They should be memorable and not easy to confuse.
If you hate mind maps you can skip this of course or use a different method but what helped me is to visualise all the topics that connect to my research project in a mind map. I then colour-coded the main groups of topics with my highlighters. It helps me to keep an overview on how many topics I need to do research on.
If you're writing a thesis/dissertation it can be helpful to have a page set aside for your proposal and take some bullet point notes on methodology, chapter structure, research context, aims and objectives and think of some titles. You can also do this for your lit review and a list of works to include.
I set aside four pages for this but you can adjust this to your needs. The first page is my hypothesis. It doesn't have to be fully formed yet, it can just be bullet points with five question marks. You can always revise and update it but it is important to keep an eye on what you're actually trying to find out.
The next idea is basically just stolen from Answer in Progress: a section for big questions, medium questions and little questions. These aren't necessarily hypotheses you aim to answer but questions you have about your topic that might be good to look into (maybe they lead somewhere, maybe they don't).
Now comes the big, fun part. Research notes are allowed to be a little messy but you should have some sort of system so you can actually find what you're looking for afterwards. I'm currently just looking at books and articles so that's what my system is based on. You can totally adjust this to include other forms of research.
What I do is that I put down and underline the author and title of my source. Underneath that I use my highlighters and mark the topic of the paper based on how I colour-coded them in my mind map. You might have to do this after you've finished reading. For example, if a text talks about censorship and dubbing in Germany, three of my topics, I will draw three lines in light blue, dark blue and red, the colours I chose for those topics. This way you can easily browse your notes and see which pages are talking about which topics.
When it comes to the actual research notes, I include the page number on the left and then take bullet point notes on whatever is relevant. These are often abbreviated and paraphrased but if something is especially important I will write down a full quote.
As mentioned earlier, I have a key of symbols I use so I can simply put down a '!' in order to differentiate a research breakthrough from a normal note. You can insert your own thoughts much more easily when you know you'll be able to tell them apart later on. At the end of each article, book or even chapter I write down my main takeaway.
This is your research journal and you can do with it what you want. I also added lists of films that might be relevant for my research, a list of databases and publishers to check for papers and tips on research strategy.
If you're working with interviews or surveys you could write down your questions. If you're nervous about your research you could include a list of reasons why your research project is important or why you're doing it. You can include a to-do list or a calendar to track meetings with supervisors. Anything that helps you with your research.
Asperitas and Mammatus
Well-defined, wave-like structures in the underside of the cloud; more chaotic and with less horizontal organization than the variety undulatus. Asperitas is characterized by localized waves in the cloud base, either smooth or dappled with smaller features, sometimes descending into sharp points, as if viewing a roughened sea surface from below. Varying levels of illumination and thickness of the cloud can lead to dramatic visual effects.
Occurs mostly with Stratocumulus and Altocumulus
Mammatus is a cellular pattern of pouches hanging underneath the base of a cloud, typically cumulonimbus rainclouds, although they may be attached to other classes of parent clouds.
source | source | images: x, x, x, x, x, x, x
Everyone's got lingering congestion this year, so as someone who's no stranger to phlegm, and inherited the folk wisdom of a stage actress (the show must go on!) I share with you my recipe for making things better:
2L water
the juice and rind of one lemon (just dump the juiced rinds in, don't zest them, you maniac)
a small thumb of fresh ginger, sliced in coins
about a dozen cloves, some star anise, peppercorns, and maybe whole cinnamon or allspice or whatever else you like, in a tea ball (except the cinnamon if it doesn't fit, obvs)
good dollop of honey, to taste
Bring the water to a boil then dump in all the stuff. Keep it hot but not boiling – a slow cooker is good for this. Keep this pot on a low heat all day and serve yourself a mug every so often, adding water as necessary. At some point you will need to add a new lemon and some more honey, but the spices can generally carry over two pots if you're drinking it regularly.
The acid helps clear the gunk, ginger is good for the circulation, and clove/aniseed/pepper have some sort of decongestant/soothing properties. Honey is both nice and antiseptic, and apparently is a cough suppressant as well? Anyway, I just got over another run of Covid and this was wasn't 100% effective but it worked better than phenylephrine.
please check it before you send me a question about graduate school :) :) i hope it’s useful! xo // updated 02.2020
basic info
what is the PhD and what can you do with it? (+)
what does a literature PhD entail?
should i do a PhD if i have to pay tuition?
is the degree worth it?
does it look bad to take time off between degrees?
what was your timeline like?
what’s the difference between a terminal MA and a PhD? (+)
does getting an MA first help you get into a PhD program?
is it okay to just try grad school out?
application process
how can i prepare for applying early in my undergrad career? (+) (+)
where should i start looking for programs?
should i choose a program based on rank or fit? (+)
how can i find lower-profile programs doing cool stuff?
how many programs should i apply to?
parts of the application
advice on the writing sample
advice on the GRE (+)
how should i ask for letters of recommendation?
how should i write a statement of purpose? (+)
how do i demonstrate my “ability to excel”?
how should i address mental health/family/personal issues that impacted my grades?
should i send in extra materials?
grad school application spreadsheet
how should i email potential advisors? (+) (+)
how can i survive the waiting period? (+)
how should i prepare for an interview or phone call? (+)
what should i ask at open house?
what should i do if i don’t think i can afford my grad school tuition?
what should i do the summer before i start my program?
seminars/coursework
how should i plan for grad seminar presentations? (+)
what should i bring with me to seminars?
what are grad seminars like?
how can i get better at speaking during seminars?
what do you mean grades don’t matter
reading
what should i have read before i start my lit grad program?
how much reading should i expect?
how can i read a lot without getting overwhelmed? (+)
how can i read efficiently? (+) (+)
quals-specific reading advice
how should i take notes on critical articles?
writing
how do i write a lit review?
how do i write an indicative bibliography?
how do i choose a dissertation topic? (+)
how do i plan for a long research paper?
how do i balance all the different kinds of writing i have to do?
money & living
how can i find housing before i move?
how do finances work in grad school?
what is adjuncting and why does it suck?
how can i budget while on a stipend?
should i work while in grad school? (+)
what’s important to a research assistant application?
i’m running out of funding / i’m off normative time
fellowship, postdocs, & job stuff
which websites post US fellowship/postdoc/job ads?
CV writing tips
how do dissertation fellowships work? (+)
tips for grant, award, & fellowship applications
should i share my materials with others?
how does the academic hiring process work?
how do i keep track of all my applications?
how do i think up a second project when i’m not even done with my dissertation?
job materials masterpost
skype interview-specific tips
job talks
negotiating (+)
general tips (+)
what’s up with the professor is in?
how do i stay motivated while getting buried in rejection letters?
misc
will grad school make my mental health issues worse? (+)
how do i survive conferences (abroad)?
how should i deal with burnout? (+)
secret labor
i think i want to quit
my advisor is ghosting me
how do i work with no structured schedule?
how do i get enough sleep?
how do i balance my work & my teaching?
how can i beat imposter syndrome? (+) (+)
how can i excel in grad school?
“Saturn in the twelve Signs of the Zodiac.” Clipped from a celestial atlas by Alexander Jamieson, 1822.
When I first started in physics, I was utterly clueless about propagating error. After three years of college, I have a better grasp of it and feel more comfortable using it in the lab. Have a look if you’re having trouble with error propagation!
Error: an unknown quantity in the realm of the state of nature
Uncertainty: a parameter in the realm of our state of knowledge about nature
Type A uncertainty: statistical in nature (an example of this would be if you were launching an object 15 times and recorded each distance)
Type B uncertainty: not statistical in nature (an example of this would be a digital reading on a scale - no matter how many times you put the same object on the scale, you will get the same reading)
Random Error
environmental fluctuations
equipment noise
natural processes
Systematic Error
environment: fixed beyond a relevant parameter
measurement technique: assumptions, experimenter bias
equipment with an offset or using equipment beyond its limits
uninformed choices
You can reduce random error by taking more measurements.
You can reduce systematic error through thoroughness, properly calibrating equipment, reading manuals, and ensuring reproducibility.
This is the standard equation for error propagation:
This represents the uncertainty in the measurement of some value x. Suppose you are measuring this value based on this equation:
You took three measurements, a, b, and c, and plugged them into this equation to get x. However, there is some uncertainty associated with each of these three values. Let’s say you measured a on a scale, b on an oscilloscope, and c with a ruler. There is uncertainty associated with all of those measurements. When you’re reading the scale, you read it as 15.45g. Let’s assume there is an uncertainty of 0.01g in that reading. Similarly, you read your oscilloscope to be 3V, and there is an uncertainty of 0.05V. You read your ruler to be 3.45cm, and there is an uncertainty of 0.05cm. We now have our uncertainties for the three values:
a = 15.45g +/- 0.01g
b = 3V +/- 0.05V
c = 3.45cm +/- 0.05cm
The other aspect of the uncertainty equation is taking the partial derivative. Those are the dx/da and dx/db parts of the equation. We will take the partial with respect of each term.
The partial derivative of the equation for x with respect to a is 2a2
The partial derivative of the equation for x with respect to b is 2
The partial derivative of the equation for x with respect to c is 4.5
Now, we can plug into our equation:
Your uncertainty in your measurement for x is +/- 22.86.
I hoped this helped you if you’re struggling with uncertainty!