TaJaRooB تجارب

One of @smartheyin projects to develop the mechanism of experiments and scientific research science, technology and The Knowledge CEO @gieadh

[TaJaRooB تجارب @tajaroob1]

بفضل الله وتوفيقه انتهينا من V.1 من منصة تجارب (نتسلى لنبتكر)
كما هي رؤيتنا في هين الذكية الجديد والمبتكر لحياة أفضل وأجمل ورافد من روافد رؤية السعودية 2023
روابط المنصة على المتاجر:
https://t.co/IeNfZYf38t
قوقل بلاي:
https://t.co/S5TIsQQORh
أبل ستور:
https://t.co/WjN5ayhjnd

[💡الفيزياء (Physics) @cool_lapis]

#قناة_فيزياء_للجميع
#الفيزيائيين_العرب
نمذجة العدسات المحدبة والمقعرة بشكل مبسط

[Mathematica @mathemetica]

Biological Neuron vs. Artificial Neuron (Perceptron with Sigmoid Activation)

A biological neuron receives input signals through dendrites, integrates them at the cell body (soma/nucleus), and fires an output signal along the axon if the combined input exceeds a threshold.

Mathematically, this is modeled as an artificial neuron:
> Multiple inputs X₁, X₂, …, Xₙ are multiplied by their respective weights W₁, W₂, …, Wₙ.
> The weighted sum is adjusted by a bias term B:
Z = Σ WᵢXᵢ - B
> A nonlinear activation function (here the sigmoid) is applied:
Output = 1 / (1 + e^(-Z))

This produces a smooth output signal between 0 and 1, mimicking the neuron’s firing behavior in a differentiable way suitable for machine learning.

[Math Files @Math_files]

Spherical Volume Element

[كيمـيَآئِي 🇸🇦 @chemistry_stuff]

أبجديات ميكانيكا الكم 👍

[مكتبة معارج الفكر في الخبر @ma3arj]

الخبر جميلة ويليق بها كل جميل
مرحبا بكم في معارج الفكر في الخبر
مكتبة ودار وأكثر
نقرأ لكم في الرواية الأولى والأهم على مستوى التاريخ، أو هي أم الروايات
بياض ورياض
رواية عربية كُتبت قبل سبعة قرون

[Math Files @Math_files]

The universe speaks in numbers

[Math Hub @mathhub_vn]

Important Symbols

[ابن عايض صالح @Gieadh]

بمناسبة موسم حج 1447 هجرية
تقبل الله منا ومنكم
وكنت آمل أن تكتب لي، وعساها.
أشارككم بكتابتي عن حج 1440 هجرية مع مفرح مهدي ابن باصم ومجموعة من شباب نجران.
الكتاب هدية لمن لديه رغبة في قراءة أدب الحج.
نبوءة المشي سبيلنا إلى السعادة يحتوي على ثمرة وأهم ما كتب عن المشي في الكتب العالمية وماذا قال الفلاسفة، وشاركت بخبرتي في المشي
المشي في نجران
المشي في الخبر
المشي في كازاخستان
المشي في الهند
المشي في الصين
المشي في دبي والشارقة
مسيرة الخير وحب الوطن
مسيرة وفاء وحب
يمكنك التواصل خاص أو من خلال مراسلة مكتبة معارج الفكر في الخبر @ma3arj
صفحة 137

[Math Hub @mathhub_vn]

Johannes Kepler (1571–1630) was a German astronomer, mathematician, and physicist best known for formulating the laws of planetary motion, which became a key foundation for modern astronomy and physics.He was born on December 27, 1571, in Weil der Stadt, in the Holy Roman Empire (now Germany). Originally intending to become a Lutheran minister, Kepler studied theology at the University of Tübingen, where he was introduced to the Copernican heliocentric model—the idea that planets orbit the Sun.Kepler worked as an assistant to the Danish astronomer Tycho Brahe. After Brahe’s death, Kepler inherited his precise astronomical data, which he used to develop his three laws of planetary motion: planets move in elliptical orbits, they sweep out equal areas in equal times, and their orbital periods are related to their distance from the Sun. These laws were published in works such as Astronomia Nova (1609) and Harmonices Mundi (1619).In addition to astronomy, Kepler made important contributions to optics, including the study of how lenses work and improvements to the telescope. He also worked on mathematics and early concepts related to infinitesimal calculus...

[Mathematica @mathemetica]

Visualizing the Normal Vector to a Parametric Surface!

For a surface z = f(x,y) parametrized by r(u,v) = (u, v, f(u,v)), the Jacobian gives the tangent vectors tᵤ and tᵥ. Their cross product yields the normal vector:

n = tᵤ × tᵥ = [-∂f/∂u, -∂f/∂v, 1]

Applications -> surface integrals, flux calculations, tangent planes, computer graphics (lighting/shading), and differential geometry.

[𝐂𝐡𝐥𝐨𝐫𝐢𝐬 @floralholicx]

“mathematics is the music of reason”

[مكتبة معارج الفكر في الخبر @ma3arj]

معارج الفكر في الخُبَر
مكتبة ودار وأكثر
تشرفنا بزيارة أخونا الكبير وقدوتنا ومن المؤسسين في الشرقية مفرح عايض ابن باصم
والمهندس ناصر بني هميم لسلوم خريج جامعة الملك فهد للبترول والمعادن دفعة 86، من مواليد الخبر العقربية ووالده الشيخ صالح لسلوم من آباء الخبر
والأبناء والزوار

[كيمـيَآئِي 🇸🇦 @chemistry_stuff]

جمال ألوان مركبات الكروم.

🟧 …. ⬅️ …. 🟦

تحول بلورات الـ K₂Cr₂O₇ (ثنائي كرومات البوتاسيوم) البرتقالية إلى راسب الـ CrO₅ (بيروكسيد الكروم السداسي) الأزرق الجميل.

[Code Geek @codek_tv]

Geometric Formulas

[ابن عايض صالح @Gieadh]

حوار بين ثري غر، وحكيم فقير، والحقيقة عكس.

يقول الحكيم: ما تعتقد بأنه يجعلك أفضل مني اشتري به حذاء، وما لدي لا يكون إلا في رأسك.

[MathsWith Sam @Sam_Axiom]

General Theory of Relativity.

Part - 1

[Math Hub @mathhub_vn]

Johannes Kepler (1571–1630) was a German astronomer, mathematician, and one of the most influential figures of the Scientific Revolution. He is best known for discovering the laws of planetary motion, which fundamentally changed humanity’s understanding of the cosmos and supported the heliocentric theory proposed by Nicolaus Copernicus.
Kepler’s Laws of Planetary Motion

Kepler’s Laws describe how planets orbit the Sun. They are fundamental principles in astronomy and physics:

1: First Law (Law of Ellipses)
Planets move in elliptical orbits with the Sun located at one of the two foci.
This replaced the ancient idea that planetary orbits were perfect circles.

2: Second Law (Law of Equal Areas)
A line connecting a planet to the Sun sweeps out equal areas in equal intervals of time.
This means that planets move faster when they are closer to the Sun and slower when they are farther away.

3: Third Law (Law of Harmonies)
The square of a planet’s orbital period is proportional to the cube of the semi-major axis of its orbit.
In simple terms, planets that are farther from the Sun take much longer to complete one orbit.

Kepler’s discoveries laid the foundation for modern astronomy and physics. His laws not only explained planetary motion but also paved the way for future scientists to understand gravity and the mechanics of the universe....

[The Math Flow @TheMathFlow]

The Basics of Electromagnetic Waves:

Electricity and magnetism can sit still, like static electricity in your hair or a magnet stuck to your fridge. But when they move and change, they actually create each other. Together, they team up to form invisible ripples of energy called electromagnetic waves.

Unlike ocean waves or sound waves, which need water or air to ripple through, electromagnetic waves don't need any material at all. They can easily travel through the completely empty vacuum of space.

Maxwell's Big Idea:

In the 1860s and 1870s, a Scottish scientist named James Clerk Maxwell figured out how this works. He wrote down the math showing exactly how electricity and magnetism link together to make these travelling waves. Today, scientists call his famous rules Maxwell's Equations.

Hertz Proves It:

Later, a German physicist named Heinrich Hertz took Maxwell's ideas and brought them to life. He was the first person to actually create and catch radio waves. To honour his work, we use the word hertz to measure how fast a wave vibrates (one cycle per second).

Hertz's experiments proved two massive ideas:

Radio waves are just invisible light: He showed that radio waves travel at the exact same speed as light, proving that they are actually a form of light we just can't see.

Going wireless: He finally figured out how to detach these energy fields from physical wires, allowing the waves to fly freely through the air exactly as Maxwell had predicted.