🗿🗿🗿 | back pain

Jena (@u7ena)’s video of a little bit of oxygen

Maldives Diving Tragedy: Investigating Oxygen Toxicity Risks

Why Flight Attendants Tell You to Put YOUR Oxygen Mask On First 😱

🔥 Why Planes Tell Parents NOT To Help Their Child First 😳

If time is paused, the environment instantly becomes uninhabitable because the physical mechanics of the universe require time to function. Because light requires time to travel, suspended photons would never reach your retinas, resulting in absolute blindness. Similarly, sound is a mechanical wave that relies on the physical collision of atoms to propagate; without this movement, the atmosphere remains completely silent. Respiration would also fail, as the kinetic motion of oxygen molecules is

Vee: Fastest Toon in Dandy's World — Reupload

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

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