Here's exactly what happens every time your heart beats 🫀 It starts with an electrical signal from the SA node — your heart's natural pacemaker. That signal tells your atria to contract, pushing blood down into the ventricles. Then the ventricles contract (ventricular systole): 🫀 Right ventricle → pumps deoxygenated blood to the lungs 🫀 Left ventricle → pumps oxygen-rich blood to the rest of your body After that, the heart enters diastole — a brief relaxation where the chambers refill and pre

The Surprising Mechanism Behind Airplane Oxygen Masks! 🤔✈️ #airplanemechanism #oxygen

Why 50,000 Fish Die Every Second from Suffocation

“Gas Welding Made Easy” #OxyAcetyleneTorch, #MetalCutting, #CalciumCarbide, #sciencefacts

Plant Producing Oxygen Caught on Camera – The Invisible Miracle of Photosynthesis Revealed 🌱🫧

This Water Was Made With Lightning

A Little Bit of Oxygen: Meaning & Mountain Scenery

On August 21, 1986, a sudden, catastrophic natural phenomenon occurred at Lake Nyos, a deep volcanic crater lake in northwestern Cameroon. Deep beneath the surface, years of volcanic activity had heavily saturated the water with a massive, highly pressurized concentration of carbon dioxide gas. A sudden underwater landslide triggered a limnic eruption, causing the lake to violently flip and release a massive gas bubble into the night air. The explosion shot a dense, heavy cloud of roughly one hu

After stopping a vehicle fire, a crew from Oakland Firefighters Local 55 noticed a pigeon having some difficulty breathing due to suspected smoke inhalation. The crew administered the pigeon some oxygen and the bird shortly flew away after clearing out its lungs. #oakland #firefighters #oxygen #smokeinhalation #pigeon