#Physics

Try this experiment at home 🏠 #physics #amazing #learn #science #fun

Explanation 👇 It is a common misconception that the Sun is “burning” like a campfire or a candle. On Earth, fire is a chemical reaction called combustion, which requires oxygen. In space, however, the Sun uses a completely different process that doesn’t need oxygen at all. The Sun is powered by nuclear fusion, not chemical combustion. In combustion, atoms rearrange themselves to form new molecules (like wood and oxygen turning into ash and smoke). In fusion, the centers of the atoms (nuclei) actually smash together to create entirely new elements. Instead of oxygen, the Sun uses its own massive gravity as “fuel” to start the reaction: • Extreme Pressure: The Sun is so massive that its gravity crushes its core with incredible force. • Extreme Heat: This pressure creates temperatures of about 15 million°C. • The Reaction: At these temperatures, hydrogen atoms move so fast that they overcome their natural urge to repel each other. They smash together and fuse to become helium. Mass Turning into Energy :- When those hydrogen atoms fuse into helium, the new helium atom actually weighs slightly less than the hydrogen atoms that made it. That “missing” mass isn’t gone; it is converted into a massive amount of energy (heat and light) according to Einstein’s famous equation #physics #sun #solarsystem #astrophysics #astrology #facts #spacefacts

Pascal’s Principle states that when pressure is applied to a confined liquid, it spreads equally in all directions. In a simple demonstration often shown by Blaise Pascal, three connected glasses are used. Two glasses already contain the same liquid while one is empty. When liquid is poured through a pipe into one glass, it flows through the connecting tubes and the level becomes the same in all three glasses. This shows that pressure and liquid distribute evenly in a connected system. #physics #quantumexplained #science

Circular motion is the movement of an object along a path with a constant radius around a fixed point. It involves continuous acceleration (a=v^2r) directed towards the center, known as centripetal acceleration, driven by a centripetal force perpendicular to the velocity. Key concepts include tangential velocity, constant radius, and, in uniform cases, constant speed. v = ω*r v perpendicular to r Tangential velocity is perpendicular to the radius because it represents the instantaneous linear motion of an object along the tangent of its circular path. According to geometry, a tangent line touches a circle at only one point and is always at a angle (perpendicular) to the radius at that contact point. #learning #science #circularmotion #physics

When I saw that video, many people claimed it showed the speed of light — but what it actually demonstrates is the speed of electricity. ⚡ Both are incredibly fast, but they aren’t the same. Light travels at nearly 300,000 km per second in a vacuum. Electricity, however — specifically the electric field moving through a wire — travels at a speed that depends on the conductor material and is usually a fraction of the speed of light. What the experiment really shows is an electrical signal moving through a long cable, turning on lights or triggering sounds one after another. We’re not watching photons racing through space, but rather the effect of an electrical signal traveling almost instantly inside the wire. It’s a powerful visual way to understand how electricity works in the technology we use every single day. #physics #electricity #speedoflight #nasa #explore

Everything you see online is just a series of lightning-fast light pulses traveling through hair-thin glass. 🌐 The secret to fiber optics is a physics phenomenon called Total Internal Reflection (TIR). Inside the cable, a glass core is surrounded by a "cladding" material with a lower refractive index. When light hits the boundary between them at a shallow angle, it doesn't pass through; instead, it bounces back into the core with 100% efficiency. This allows data to travel thousands of miles even around corners without losing its signal. To turn this light into information, engineers use binary code. A pulse of light represents a 1, and the absence of light represents a 0. By flickering these lasers billions of times per second, we can transmit entire high-definition movies across the ocean in the blink of an eye. It is the ultimate fusion of optical physics and digital communication engineering. #engineering #physics #fiberoptics #telecommunications #techfacts

How to Calculate Resistance 🔌⚡ Understanding how to calculate resistance is an important concept in electricity and electronics. Resistance is measured in ohms (Ω) and it tells us how much a material opposes the flow of electric current. Using Ohm’s Law, resistance can be calculated with the formula: R = V / I Where: • R = Resistance (ohms) • V = Voltage (volts) • I = Current (amperes) For example, if a circuit has 10 V voltage and 2 A current, then: R = 10 / 2 = 5 Ω Learning this simple formula helps students understand circuits, solve physics problems, and prepare for exams. 📚 Keep learning science in a simple way with Sciencebysumati. #Physics #Resistance #OhmsLaw #Electricity #ScienceEducation Class10Physics NEETPreparation

In classical physics, if a ball does not have enough energy to pass over a hill, it will stop in front of it. However, at the level of extremely small particles like electrons, this rule does not always apply. Because particles also behave like waves (according to the concept of Wave–Particle Duality), there is a small probability that part of the particle’s “wave” appears on the other side of a barrier. This means the particle can seemingly pass through a wall without breaking it. This phenomenon is known as quantum tunneling, an important concept in Quantum Mechanics. #sciences #physics #quantumphysics #quantumtunneling #sciencefacts #scienceshorts #didyouknow #mindblowing #spaceandscience #physicsfacts #stem #learnonsocial #scienceexplained #shorts #youtubeshorts

The brain compares an object to its surroundings. If an object is surrounded by smaller elements, it will appear larger. Conversely, a large object surrounded by larger elements can feel miniature. The brain holds a mental template for everyday objects (like a smartphone, a person, or a car). If a graphic shows a car smaller than a phone, the brain experiences a "size discrepancy" and feels the image is wrong. Follow us/@sciencebreed #sci #physics #instagram #sciencebreed

Physics just amazes me every single day wow…..#physics #funny #comedy #virals #search

Extreme Overdrive: 1 to 625! ⚙️🚀 Visualizing massive speed multiplication! 🛠️ Unlike gear reduction, an Overdrive setup trades torque for pure speed. In this 4-stage build, every stage multiplies the input RPM by 5x. By the time we reach the final axle, it’s spinning 625 times faster than the input! You can actually see the gear train getting harder to turn as the mechanical disadvantage increases. Is there a limit to how much speed these plastic gears can handle? #Engineering #Overdrive #LegoTechnic #SpeedTest #Physics #MechanicalDesign #HighSpeed #625x

Before launch, both the truck and the person are already moving forward at 80 km/h relative to the ground. When the person is launched backward at 80 km/h from the truck, that speed is measured relative to the truck itself. From the ground’s perspective: 80 km/h forward − 80 km/h backward = 0 km/h So for a brief moment, the person appears to come to a complete stop relative to the road before gravity takes over. Inside the truck, observers see the person shoot backward at high speed. But to someone standing still outside, the forward motion has simply been canceled by an equal backward push. This happens because motion is always relative, velocities add and subtract depending on the frame of reference. Video - @_ddsquad #science #physics #knowledge