Physics - Blog Posts
never wanted to do anything other than the sciences- plus I might go into medicine, so-
A quick summary of the last 16 months
Day 13/20, 3rd October, 2023 – Tuesday
I had my English and Physics tests today... I think English went better than last time, and I think Physics went better too, but I'm not too sure about the latter. I have Maths tomorrow, so I need to study for that. I hope that one goes better than last time too.
Day 12/20, 2nd October, 2023 – Monday
Still preparing for Physics tomorrow, don't know if I'll have time for English or not...
Day 11/20, 1st October, 2023 – Sunday
Today wasn't as productive as it should have been, since I've been super tired recently (primarily due to me having begun going to physical tuitions again in the evening instead of taking them online), but I finished projectile motion!! I have a pretty clear understanding of how it works, but I need to be wary of how they may frame questions for my test, so I still need to practice them some more.
Day 10/20, 30th September, 2023 – Saturday
Hello! So today wasn't the best, but I did do work, so it counts for something, right? I think it does. Either way. I did projectile motion, since that's what will be coming on my physics test on Tuesday. On a non-academic note, my family and I have come to a meditation retreat/resort for the weekend. So far it's really nice!! It's a huge property and they have this really big and nice garden that we walked through. And I love riding on the golf carts, those are so fun.
Day 7/20, 27th September, 2023 – Wednesday
Hello again! (Sorry I'm late in posting, but please bear with me). Yes, so I don't usually have class on Wednesday's, but since Thursday is a religious holiday for us, they compensated the class on Wednesday. I had zoology again, and this time we did the appendicular skeleton after finishing off the last part of the axial one. It was nice :D Alongside that, I had physics class, and we started our new chapter, which is Work, Energy, and Power. After quite a while, I began understanding stuff in physics again. 😭 Either way, my exams are upon my head once more – they begin on next Tuesday, and we're kicking off this set of exams with English and Physics, which will be fun!!! (Not). Alright, see you tomorrow (I promise to click pictures soon, I swear I'm trying my best).
Day 5/20, 25th September, 2023 – Monday
So. I can't exactly remember what I did on Monday (I should really start strictly following everything I said I would smh), but I did go to my tuition/coaching class. We had zoology and physics. Now, in zoology, we were doing muscle contractions and how they work. I need to go over my notes again, because though I understand it, I need to make sure I understand the whole process. And I would've have physics class, but I'd missed a test on Saturday, so I had to write that instead (two of my classmates were writing it alone in a separate room without an invigilator, so you can imagine what happened). Either way, at least it wasn't a total waste of a day again.
Day 13/14, 12th September, 2023 – Tuesday
I had my physics test on Tuesday. It went better than chemistry, but it didn't go all too well either. Thank god I'd panicked last minute and learnt operations for uncertainties so that I didn't fail completely (I hope). I also studied some for my biology test the next day.
Day 12/14, 11th September, 2023 – Monday
I had both, my maths and chemistry tests on Monday. As I mentioned in my previous post (since I'm mass-posting once again), I didn't do all that well. However, since I had my physics test the next day, though I felt very tired and a tad sick, I tried my level best to practice.
Day 9/14, 8th September, 2023 – Friday
Today wasn't as productive as I wanted it to be. I had a test in my tuition class, so I studied my botany chapter for that because that was the only subject I really had the time/motivation to do. I don't really know how it went, but my physics class before the test had gone well! I finally understood some of the motion problems the teacher was teaching, and I think I got one of those kinds right on the test (which is improvement, baby steps, ok?). Either way, even though it wasn't the most productive day, I still think it went well.
Day 4/14, 3rd September, 2023 – Sunday
Ok, so I don't have a picture for today either, but I worked again!!! I worked on my Chem Lab Report a little bit, since the due date looms closer. Along with this, I did some physics, motion in a plane, from a book of mine. Got emotional over getting a problem wrong, but alas, that's the learning process (for me, at least).
the one with the brains
[top right picture belongs to @sadcypher]
If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.
Albert Einstein
'Amicus Plato — amicus Aristoteles — magis amica veritas.'
"Plato is my friend - Aristotle is my friend - but my greatest friend is truth."
Isaac Newton, Quaestiones quaedam philosophicae
"Every now and then a man's mind is stretched
by a new idea or sensation, and never shrinks
back to its former dimensions."
Oliver Wendell Holmes Sr.
I am among those who think that science has great beauty. A scientist in his laboratory is not only a technician, he is also a child placed before natural phenomenon, which impress him like a fairy tale.
Marie Curie
‘Love is the one thing that we’re capable of perceiving that transcends dimensions of time and space.’
“Eulogy from a Physicist” by Aaron Freeman, with quotes from Interstellar by Christopher Nolan, and images from NASA, Interstellar, Getty, Petrichara, and Reuters.
1- NASA: GOODS-South.
2- NASA: NGC 1850.
3- NASA: Iberian Peninsula.
4- Christopher Nolan: Interstellar.
5- NASA: From the Earth to the Moon.
6- Hannah La Folette Ryan: Subway Hands.
7- Adams Evans: Heart Nebula.
8- NASA: Exploring the Antennae.
9- NASA: Crescent Moon from the International Space Station.
10- Petrichara.
11- Getty Images.
12- NASA: SMACS 0723.
13- Reuters
i’m sat
general relativity for babies
Dance for Two by Alan Lightman
Being You by Anil Seth
How story, God, and Your Lying Brain Turn Chaos into Order by Nancy Mimeles Carey
Your Brain is a Time Machine by Dean Buonomano
Some of the books I've read recently + the covers
‘Wrinkles’ in time experience linked to heartbeat
How long is the present? The answer, Cornell researchers suggest in a new study, depends on your heart.
They found that our momentary perception of time is not continuous but may stretch or shrink with each heartbeat.
The research builds evidence that the heart is one of the brain’s important timekeepers and plays a fundamental role in our sense of time passing – an idea contemplated since ancient times, said Adam K. Anderson, professor in the Department of Psychology and in the College of Human Ecology (CHE).
“Time is a dimension of the universe and a core basis for our experience of self,” Anderson said. “Our research shows that the moment-to-moment experience of time is synchronized with, and changes with, the length of a heartbeat.”
Saeedeh Sadeghi, M.S. ’19, a doctoral student in the field of psychology, is the lead author of “Wrinkles in Subsecond Time Perception are Synchronized to the Heart,” published in the journal Psychophysiology. Anderson is a co-author with Eve De Rosa, the Mibs Martin Follett Professor in Human Ecology (CHE) and dean of faculty at Cornell, and Marc Wittmann, senior researcher at the Institute for Frontier Areas of Psychology and Mental Health in Germany.
Time perception typically has been tested over longer intervals, when research has shown that thoughts and emotions may distort our sense time, perhaps making it fly or crawl. Sadeghi and Anderson recently reported, for example, that crowding made a simulated train ride seem to pass more slowly.
Such findings, Anderson said, tend to reflect how we think about or estimate time, rather than our direct experience of it in the present moment.
To investigate that more direct experience, the researchers asked if our perception of time is related to physiological rhythms, focusing on natural variability in heart rates. The cardiac pacemaker “ticks” steadily on average, but each interval between beats is a tiny bit longer or shorter than the preceding one, like a second hand clicking at different intervals.
The team harnessed that variability in a novel experiment. Forty-five study participants – ages 18 to 21, with no history of heart trouble – were monitored with electrocardiography, or ECG, measuring heart electrical activity at millisecond resolution. The ECG was linked to a computer, which enabled brief tones lasting 80-180 milliseconds to be triggered by heartbeats. Study participants reported whether tones were longer or shorter relative to others.
The results revealed what the researchers called “temporal wrinkles.” When the heartbeat preceding a tone was shorter, the tone was perceived as longer. When the preceding heartbeat was longer, the sound’s duration seemed shorter.
“These observations systematically demonstrate that the cardiac dynamics, even within a few heartbeats, is related to the temporal decision-making process,” the authors wrote.
The study also showed the brain influencing the heart. After hearing tones, study participants focused attention on the sounds. That “orienting response” changed their heart rate, affecting their experience of time.
“The heartbeat is a rhythm that our brain is using to give us our sense of time passing,” Anderson said. “And that is not linear – it is constantly contracting and expanding.”
The scholars said the connection between time perception and the heart suggests our momentary perception of time is rooted in bioenergetics, helping the brain manage effort and resources based on changing body states including heart rate.
The research shows, Anderson said, that in subsecond intervals too brief for conscious thoughts or feelings, the heart regulates our experience of the present.
“Even at these moment-to-moment intervals, our sense of time is fluctuating,” he said. “A pure influence of the heart, from beat to beat, helps create a sense of time.”
Books and bookmarks
I added some extra stuff in the tags that is helpful if you want to be a functional human being. Like having a well rounded education even if you don't use some of it later in life or if it is dated, biased, incomplete, or maybe flawed will still give you a good foundation for thinking and learning vs. if you just focused on biology or literary structure.
"Logic!" said the Professor half to himself. "Why don't they teach logic at these schools?"
C.S. Lewis, The Lion, the Witch and the Wardrobe (Chronicles of Narnia, #1)
In classical physics, the entropy of a physical system is proportional to the quantity of energy no longer available to do physical work. In another universe, our systems still have this extent of randomness intact. You and i are closed vessels trying to sustain, order ourselves by consuming all energy that aids.
According to the second law of thermodynamics, in a closed system, the entropy of a system can only decrease if the entropy of another system increases.
(Lately i’ve seen entanglement apply to lovesick physicists. But it’s not in ways you’d expect it to be.)
Your entropy increases with mine and i can’t comprehend how such disorder is to be borne.
Some scientists predict the entropy of the universe will increase to the point where the randomness creates a system incapable of useful work. When only thermal energy remains, the universe would be said to have died of heat death. We’ve never been scared of death, just the end of two of us. Certain nights i wake up on the verge of death by neural transmitters, leading my spirit to the gateway of days of rot.
Entropy is beautiful because with time matter in isolated systems tends to move from order to disorder. We are beautiful because in an effort to attain order, we set ourselves free of it.
SpaceX launched its Inspiration4 mission from NASA's facility in Florida, successfully bringing its all-civilian crew into orbit. The mission is the first private crew launched to orbit by Elon Musk's company and the first time a crew was made up entirely of nonprofessional astronauts. 💙Join our Space family💙 🔔And turn on post notification.🔔 - Kindly follow @_space___lover_ for more interesting posts in future. • Double TAP ❤️ for more.... Follow @_space___lover_ to Learn New Amazing Stuff Everyday - - Do you agree with this post? 💯 ❗️Follow us for more Space Science Facts❗️ @_space___lover_ @_space___lover_ @_space___lover_ @_space___lover_ @_space___lover_ ❤️ Like! 🍎 Follow @_space___lover_ 📜 Share with space lovers! 🔊 Turn on post notifications! . . . . . ---------------------------------------------------- . #spacex #physics#nasa#physicsonly#science#fact#philosophy#philosopher#scientist#astronomy#astrophysics#universe#hawking#particlephysics#physicist#space#stringtheory#blackholes#quantumphysics#spacex#madamcurie#maths#blackhole#fact#gravity#Cosmos #space #knowledge#education#spacex (at SpaceX) https://www.instagram.com/p/CT3nGMUqpVm/?utm_medium=tumblr
💙Join our Space family💙 🔔And turn on post notification.🔔 - Kindly follow @_space___lover_ for more interesting posts in future. • Double TAP ❤️ for more.... Follow @_space___lover_ to Learn New Amazing Stuff Everyday - - Do you agree with this post? 💯 ❗️Follow us for more Space Science Facts❗️ @_space___lover_ @_space___lover_ @_space___lover_ @_space___lover_ @_space___lover_ ❤️ Like! 🍎 Follow @_space___lover_ 📜 Share with space lovers! 🔊 Turn on post notifications! . . . . . ---------------------------------------------------- . #iss #NASA #jwst #nasawebb #cosmoknowledge #physics#nasa#physicsonly#science#fact#philosophy#philosopher#scientist#astronomy#astrophysics#universe#hawking#particlephysics#physicist#space#stringtheory#blackholes#spacelover #spacex#madamcurie#maths#blackhole#fact#gravity#Cosmos#alberteinstein (at Iss - International Space Station - Nasa) https://www.instagram.com/p/CTwBPhDsijM/?utm_medium=tumblr
NASA's $10 billion James Webb Space Telescope, the largest and most powerful ever built, will launch on December 18 on an Ariane 5 rocket. 😌😌 . ⏬Comment your thoughts ⏬ 💙Join our Space family💙 🔔And turn on post notification.🔔 - Kindly follow @_space___lover_ for more interesting posts in future. • Double TAP ❤️ for more.... Follow @_space___lover_ to Learn New Amazing Stuff Everyday - - Do you agree with this post? 💯 ❗️Follow us for more Space Science Facts❗️ @_space___lover_ @_space___lover_ @_space___lover_ @_space___lover_ @_space___lover_ Double tap ❤️ Share More👇 Follow us for more 🌍 . . . . . . ➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖ ----------------------------------------------------------------------------. .. #jwst #NASA #jemeswebbetelescope #jemeswebb #astronomy #astronomylover #astronomyfacts #interstellar #naturebeauty #patternsinnature #mathematicians #natureisamazing #science #space #universe #cosmology #astronomy #physics #education. #physics #physicist #physicsfacts #sciencefacts #science #cosmos #cosmology #universe #astrophysics #astronomy #spacescience #spaceexploration #quantumphysics #einstein (at NASA) https://www.instagram.com/p/CTlZVgQKbxq/?utm_medium=tumblr