Experiment: Shining a laser pointer through two narrow slits and observing the interference pattern on a distant screen. Observation: When the laser light is on, there is an interference pattern on a distant screen. Thesepatterns could only be produced if light were acting like a wave. Explanation: When light goes through a slit, diffraction causesContinue reading “EXPERIMENT 10: TWO-SLIT EXPERIMENT”
Experiment: Rub the water pipe with the cloth, then bring the pipe near the can. Observation: Rub the surface of the water pipe with the cloth for 40 seconds. Then place the can on a flat and smooth surface. Next, hold the water pipe close to the can without touching it and watch as itContinue reading “EXPERIMENT 9: STATIC ELECTRICITY”
Experiment: Put the carbon metal sheet (black) & magnesium metal sheet (white) into Sodium Chloride solution. Observation: Bubbles emerge from the salty solution, and electricity is created to run the fan. Explanation: The experiment is based on the electrolysis reaction of the salt solution. Under the effect of the electric field of the salt solution,Continue reading “EXPERIMENT 8: ELECTRICITY INDUCED BY SALTY SOLUTION”
Experiment: Put the printer toner in a glass of water and move the magnets around the facade of the glass. Observation: The toner starts to move in the direction the magnet goes. It keeps attracting to the magnet until the magnet is removed away. It is a water trick where you can play around theContinue reading “EXPERIMENT 7: MAGNETIC PARTICLES”
Experiment: I construct a mini car by using a fresh AA battery and place a few magnets on both ends. I place the magnets with the same pole facing out from the magnet, and the magnets are attracted and stick to the steel parts of the battery. Observation (EXPECTED): When this stack of batteries andContinue reading “EXPERIMENT 6: HOMO POLAR FOIL MAGNET TRICK”
Experiment: Rub a balloon with a piece of cloth and gradually move it to a pinch of pepper salt scattered on the ground Observation: The balloon gradually pulls up the pepper salt straightly despite the gravity of the Earth. The pepper salt stays stuck there for a while before suddenly falls off on the ground.Continue reading “EXPERIMENT 5: BALLOON PULLS UP PEPPER SALT”
Experiment: I hold the slinky and let it fall freely to the ground Observation:If you keep your eye on the bottom of the Slinky, on the last curl at the very end, you will notice that as the top of the Slinky starts to fall, the bottom doesn’t drop. It just hangs in the air,Continue reading “EXPERIMENT 4: DOES A FALLING SLINKY DEFY GRAVITY?”
– Experiment: Thread a ring up through a chain while holding the ring with the thumb and index finger, position the ring such that the ring is perpendicular to the chain and the then drop the ring by releasing one of the two fingers first and then the other – Intended outcome: The ring wouldContinue reading “EXPERIMENT 3: RING STUCK ON A CHAIN”
Experiment: A paperclip is afloat on a cup of water. Then a Q-Tip containing liquid soap is repeatedly dipped into the cup, avoiding the paperclip. Observation: After multiple dips, the paperclip no longer floats on the surface of the cup and sinks to the bottom Explanation: The water molecules at the surface of the cupContinue reading “EXPERIMENT 2: SINKING PAPERCLIP”
Dùng phần mềm tái tạo lại tranh của Leonardo da Vinci, các nhà nghiên cứu chứng minh thiên tài người Ý không vẽ sai
Khoa học làm sáng tỏ bí ẩn về “bức tranh đắt giá nhất thế giới”. Năm 2017, bức tranh sơn dầu có tên Salvator Mundi (Savior of the World – Người Cứu rỗi Thế giới) được bán với giá 450,3 triệu USD tại một phiên đấu giá tổ chức ở New York; xét theo mộtContinue reading “Dùng phần mềm tái tạo lại tranh của Leonardo da Vinci, các nhà nghiên cứu chứng minh thiên tài người Ý không vẽ sai”
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