- 49
- 104 723
EASY天文地科小站
Taiwan
Приєднався 19 лют 2020
EASY 代表 " Earth and Astronomy for You "
同時也有「簡單」的意思。
我們是一群來自不同學校、但同樣熱愛地科與天文的學生
希望透過舉辦博覽會與網路科普,提供一個不同於一般課堂與書本,而是更加簡單有趣的方式,帶大家認識天文地科的相關議題,分享它們的美麗與浩瀚。
同時也有「簡單」的意思。
我們是一群來自不同學校、但同樣熱愛地科與天文的學生
希望透過舉辦博覽會與網路科普,提供一個不同於一般課堂與書本,而是更加簡單有趣的方式,帶大家認識天文地科的相關議題,分享它們的美麗與浩瀚。
【給地科學子的求學地圖】台大地質篇
睽違三年,EASY《給地科學子的求學地圖》系列重棒回歸囉!
這次我們邀請到目前就讀台大地質所的 #起司編,從他過去四年的經驗,為大家詳細介紹:
章節
0:00 片頭
00:31 地質系究竟在學甚麼東西?
04:04 地質底下有哪些研究方法與子領域?跟其他科系有甚麼連結?
07:03 地質系的一大特色活動 ── 地質調查都在做些什麼?
11:28 地質系畢業的人有什麼常見出路?哪些地需要地質相關人才?
14:11 在國高中階段,我們可以為地質專業做哪些準備?
15:22 台灣有哪些類似的科系?它們有什麼異同?
以及更多過來人的有趣經歷!
--
本片文章版:hchsastronomy.blogspot.com/2024/08/ep2.html
前一集:ua-cam.com/video/7tf3WT6_UV0/v-deo.html
求學地圖系列:ua-cam.com/play/PLTAT37g05gH7pL-WzmpLGX0HNYv92J8-2.html&si=xJWBke8tvv2KOaLA
--
EASY 的 FB、IG 和 Patreon,歡迎按讚追蹤,並成為我們的贊助者!
Facebook: easyearthEXPO
Instagram: easy_earth_science
Patreon:www.patreon.com/easyearthsciences
這次我們邀請到目前就讀台大地質所的 #起司編,從他過去四年的經驗,為大家詳細介紹:
章節
0:00 片頭
00:31 地質系究竟在學甚麼東西?
04:04 地質底下有哪些研究方法與子領域?跟其他科系有甚麼連結?
07:03 地質系的一大特色活動 ── 地質調查都在做些什麼?
11:28 地質系畢業的人有什麼常見出路?哪些地需要地質相關人才?
14:11 在國高中階段,我們可以為地質專業做哪些準備?
15:22 台灣有哪些類似的科系?它們有什麼異同?
以及更多過來人的有趣經歷!
--
本片文章版:hchsastronomy.blogspot.com/2024/08/ep2.html
前一集:ua-cam.com/video/7tf3WT6_UV0/v-deo.html
求學地圖系列:ua-cam.com/play/PLTAT37g05gH7pL-WzmpLGX0HNYv92J8-2.html&si=xJWBke8tvv2KOaLA
--
EASY 的 FB、IG 和 Patreon,歡迎按讚追蹤,並成為我們的贊助者!
Facebook: easyearthEXPO
Instagram: easy_earth_science
Patreon:www.patreon.com/easyearthsciences
Переглядів: 312
Відео
2024.07.10 臺北午後雷雨縮時 - 臺灣大學視角 (Taipei Afternoon Thunderstorm Timelapse at NTU )
Переглядів 4484 місяці тому
在夏天臺北盆地的早晨,熱力作用引發的環流會將潮濕的海風從淡水河口、基隆河谷和大漢溪谷引進盆地內。對流藉著高溫潮濕的空氣逐漸成長茁壯,直到下午時成長成巨大的積雨雲,並造成局部的大雨及雷擊出現。影片記錄了 2024 年 7 月 10 日在臺灣大學發生的午後雷雨,可以看到積雲由小而大、對流降水發生時的複雜過程。 In summer mornings, the sea breeze brings moisture into the Taipei Basin from the Tamsui River mouth, Keelung River Valley, and Dahan River Valley. With the hot and humid air, convections develop into massive cumulonimbus clouds by the afterno...
20240403 花蓮地震時間序列 (2024 Hualien Earthquake and Aftershock Distribution)
Переглядів 2447 місяців тому
2024 年 4 月 3 日,花蓮發生了芮氏規模 7.2 的強震,並引發了大量的餘震。在這部影片中,呈現了自 4 月 3 日至 6 日的地震發生的時間及空間分布。 On April 3, 2024, a strong earthquake measuring 7.2 on the Richter scale struck Hualien, triggering numerous aftershocks. This video depicts the temporal and spatial distribution of earthquakes occurring from April 3 to April 6.
Cosmological Simulation|Santa Barbara Cluster
Переглядів 57Рік тому
Simulation with Gadget-4 and visualization with yt.
2D Hydrostatic Blast|No Gravity
Переглядів 69Рік тому
A Sedov-like explosion in a box but with gravity turned off. Without gravity, convection is surpressed. But the hot bubble still rise up due to shock reflected by the ground. Kevin MacLeod創作的「Martian Cowboy」是依據 創用 CC (姓名標示) 4.0 授權使用。 creativecommons.org/licenses/by/4.0/ 來源: incompetech.com/music/royalty-free/index.html?isrc=USUAN1100349 藝人: incompetech.com/
2D Hydrostatic Blast|Fiducial Setup
Переглядів 48Рік тому
A Sedov-like explosion in a box with constant gravity pointing downward to allow convection. Kevin MacLeod創作的「Martian Cowboy」是依據 創用 CC (姓名標示) 4.0 授權使用。 creativecommons.org/licenses/by/4.0/ 來源: incompetech.com/music/royalty-free/index.html?isrc=USUAN1100349 藝人: incompetech.com/
2D Hydrostatic Blast|Reflective Boundary Condition
Переглядів 53Рік тому
A Sedov-like explosion in a box with constant gravity pointing downward to allow convection. Setting all the boundary condition to reflective do not really have much physical meaing (it's like a 10 km-size box), but all those convection, turbulence, and shock reflection/interaction looks really cool.
2023 小犬颱風侵臺期間雷達回波及地面風場 (2023 Typhoon Koinu radar reflectivity and surface wind
Переглядів 1 тис.Рік тому
2023 年小犬颱風侵臺期間,對臺灣各地,尤其是沿海及離島地區帶來強勁的風勢。颱風接近蘭嶼期間,蘭嶼氣象站在 10/04 晚間 09:58 分更測得強達 95.2 m/s 的強陣風,刷新臺灣歷史以來陣風的觀測紀錄。 原始資料來源: 交通部中央氣象署開放資料
Trajectory of Europa Clipper in Jovian System
Переглядів 449Рік тому
Trajectory of Europa Clipper in Jovian System
2023 海葵颱風侵臺期間雷達回波及地面風場 (2023 Typhoon Haikui radar reflectivity and surface wind)
Переглядів 464Рік тому
2023 海葵颱風侵臺期間雷達回波及地面風場 (2023 Typhoon Haikui radar reflectivity and surface wind)
Wave Scattering|Time dependent Schrodinger Equation Series
Переглядів 101Рік тому
Wave Scattering|Time dependent Schrodinger Equation Series
Quantum Tunneling|Time dependent Schrodinger Equation Series
Переглядів 98Рік тому
Quantum Tunneling|Time dependent Schrodinger Equation Series
Bounded Gaussian: Standing|Time dependent Schrodinger Equation Series
Переглядів 27Рік тому
Bounded Gaussian: Standing|Time dependent Schrodinger Equation Series
Bounded Gaussian: Slow|Time dependent Schrodinger Equation Series
Переглядів 26Рік тому
Bounded Gaussian: Slow|Time dependent Schrodinger Equation Series
Bounded Gaussian: Fast|Time dependent Schrodinger Equation Series
Переглядів 34Рік тому
Bounded Gaussian: Fast|Time dependent Schrodinger Equation Series
Harmonic Potential|Time dependent Schrodinger Equation Series
Переглядів 154Рік тому
Harmonic Potential|Time dependent Schrodinger Equation Series
CR3BP Series|L4, L5 Short Period Family
Переглядів 157Рік тому
CR3BP Series|L4, L5 Short Period Family
Cosmological Simulation: Large Scale Structure Formation |L10-N196
Переглядів 2,2 тис.2 роки тому
Cosmological Simulation: Large Scale Structure Formation |L10-N196
Cosmic Structure formation | Cosmological N body Simulation using Gadget-4
Переглядів 5 тис.2 роки тому
Cosmic Structure formation | Cosmological N body Simulation using Gadget-4
Trajectory of Parker Solar Probe | Effects of multiple Venus gravity assists
Переглядів 1,4 тис.2 роки тому
Trajectory of Parker Solar Probe | Effects of multiple Venus gravity assists
I've always found it insane that L4 and L5 are actually stable when they are not even on the line from sun to planet.
It’s because the combined force from the two planets acting on the satelite (or something else) points at the center of mass of the two planets!
Internal Lagrange points of Earth, if Indian Ocean is low gravity point, where are the other Lagrange points within our planet?
Hi! Thank you for this wonderful simulation. Please tell me, can you share a link to the source code of this simulation? What did you use to create it?
Hi! Thank you for this wonderful simulation. Please tell me, can you share a link to the source code of this simulation? What did you use to create it?
請問這些空間計算,用了哪些定理做空間分佈的判斷?
我們是拿氣象署的地震目錄來畫的,不是我們自己計算的哦。 氣象署是用他們的地震站挑出地震波的P波S波到時,然後用多個測站的震波到時反推震源可能的位置。
怎麼facebook的影片沒音樂,反而是UA-cam版本影片有音樂?
版權問題
@@EASYEarthSciences 幫你哭哭。
QAQ
What does blue and red mean? What are the colors trying to show and say? If you added explanation to this video , i was more useful.
Blues and reds represents the value of the function. You can kind of think of it as the high and low points on the sphere.
大學青春已經沒了 研究所一定要考進!😭
加油
This model looks absolutely amazing. What equation or model is this simulation based on?
We first initialize an atmosphere which is in hydrostatic equilibrium, and then we add a lot of energy at the center of explosion. Then the system evolves according to Euler's equation for fluids.
Very beautiful!
Do you have any tutorial of GADGET-4?
There are quite detailed documentations on GADGET-4's offical website. wwwmpa.mpa-garching.mpg.de/gadget4/02_running/ However, it may requires some prerequisite knowledge about linux system.
@@EASYEarthSciences Thank you very much 🙏
What's the maximum stable ratio again?
It's about 24.96.
High very cool simualtion! I am trying to achieve something similar, but so far I only have L1, L2 and L3. I don't understand what is missing in the potential for L4 and L5. What potential did you use besides the gravitational and centrifugal potential?
In such a co-rotating frame, you need to add Coriolis Force (en.wikipedia.org/wiki/Coriolis_force), which is the red arrow in the simulation.
Hey, thanks for the answer! I have now tried a few days but unfortunately I am not able to find a potential for the Coriolis force. For an object with the same trajectory, the Coriolis force adds to the centrifugal force. It seems to be important in which direction the object is moving. But I don't know how to calculate a potential field for the Coriolis force. I think I am missing something. Do you have any other sources? I can't get any further with wikipdeia and ChatGPT :( @@EASYEarthSciences
Awesome❤
Does this model assume that the universe started off evenly distributed as it would suggest by looking at it?
Yes, this is assuming the so called Lambda-CDM cosmology. The universe is very uniform at the beginning, with very little density perturbations. But as time goes on, gravity would enhance these little density perturbations and form the large scale structure.
The best representation of the big bang.
Oh my god my brain is moving like that
"well gromit my lad it might not be stable but it gets the job done " wallace 2023
Very cool simulation! What python packages did you use to create this custom animation? Looks stylish :)
Hi, the animation is produced by python package matplotlib. The color style is manually adjusted by the author.
超棒!
推普通天文學,也是通識課
沒錯,如果沒有相關背景,從普天開始是個很好的入門~
你好,我目前幾乎是確定會去讀清大物理所,想請問清大物理跟天文所的差距只差在必修不同嗎,物理所的同學是否能跟天文相關的教授呢,謝謝!
基本上是,物理所的學生找天文所的教授完全沒問題。 但這個必修不同的差距有一點大嘿嘿嘿......
@@EASYEarthSciences ok,謝謝你,那我乾脆兩邊都修好了
@@amdklwmfsf 加油
I'd like to do thi in python anyone know where some kind person might have coded it? I am too dumb to do it from scratch!
This seems like randomized specks of dust colliding with each other by gravity, forming spheres and attracting more dust to the spheres. I don't know what significance this has for the universe's evolution, but it is how stars are formed.
好有質感~
真的很喜歡這支影片,身為高三生的我,真的很喜歡天文,看了這個影片後真的有大大的收穫,也更確定了我未來要往清大物理邁進!!!謝謝你們!🤩
太好了😄 也祝妳一切順利~
That's incredible, how many particles computed?
196^3, around 7.5e6 particles.
It's trajectory is straight back into the VAB.
NO not exactly. The exact path of the Artemis program is more like this. Imagine a cliff. Sitting on the precipice of this cliff is the SLS with Orion at the top. A great big crane marked ULA careers at break neck speed towards this rocket. The giant boom of the crane hits the rocket about halfway up. This sends the SLS tumbling off the cliff in a parabolic decent. There's your trajectory. Another way to consider the project though is not so much from a physics point of view, but more a fiscal perspective. Once again use your imagination to picture a huge furnace with a large cast iron door open to reveal the blazing inferno within. now picture a team of engineers with shovels slowly throwing money from a $23 billion pile into that fire. They were employed to get it all burnt in a day but it has taken them 5 days and they now want several more piles of $4 billion each, provided for each time congress expects to see some more flames. 🤣🤣🤣 Space X is, at this time, the only hope for America to set up a permanent base on the moon. This is if you expect to do so in a timely and affordable fashion.
好優雅~
Confusing
how can we run GADGET-4 on linux after compiling ?
If compliation is successful, you should be able to run it with something like "mpiexec -np 4 ./Gadget4 param.txt" Gadget-4 also provides template job.sh file if you are running on a cluster.
how long did it take to compute
About a day on 2 i5 core.
Woah, great work! Hope to see more. 😝
What are the moving blue dots? I do know where the lagrange points are but the blue dots are mysterious to me.
@تريكي (رئيس جلد الشحاتين) and they aren't real asteroids right, just some referential ones?
It's from SpaceX, it's Chinese space junk, it's Alien from an exoplanet crash to the moon.
What?
the objects are asteroids?
Not necessarily.
The picture is pretty. An explanation using words would be better.
This is an amazing Sim.. I would like to know more about what you do? Is the project you are working on a part of astronomy and machine learning..? Just thinking loud..
Hi, thank you for the question. Actually this simulation is just a small project I do with personal interest. The simulation's main goal is actually trying to demonstrate how centrifugal force, Coriolis force and gravity works in rotating frame (as shown by arrows in the other 2 videos in the playlist). There is nothing too facy here :)
@@EASYEarthSciences thank you for the response..appreciate it👍
at light speed this ssimullation should take more than 66 minutes.. so why make it so jumpy fast and unfrindenly for following? very large and heavy thumb down 2u2
66 minutes for what
@@touristofsongs4946 this simulation is too fast to follow [thtistherply point]
I don't know what their actual properties... But i do know that out there, there is a big party going on.. 😂😂
This helped me finally understand langrange points thank you
is this in a rotating frame of reference or are the two mass bodies fixed? In some parts of the simulation, the movement of the massless particles seems odd, so my initial guess was that this is due to the frame of reference rotating and thus not being inertial.
NVM, you answered this in the comments already. :)
好棒的影片!敲碗大氣、海洋有關的科系介紹!
I did not understand one damn thing, how many are of the same view?
Kinda meaningless with such a short timeframe. Hard to say, but it looks like you ended up with a Hilda-type orbit for at least one of them. Again, had to say in such a short timeframe.
That's true. This video is, scientifically speaking, quite meaningless. I actually wrote the code and made the two other videos in the playlist to demonstrate how centrifugal force, Coriolis force and gravity works in rotating frame. For this "Ring" simulation, I just want to mess around. But somehow people love it 😂.
The frame of reference do be rotating
What
Explain Better pls