Every puff, no matter if from a cigarette or a vape, narrows your blood vessels, strains your heart, and fills your lungs with harmful chemicals. And that's just the beginning. | Kurzgesagt

Deep underground, leftover heat from our planet’s formation and radioactive decay heats up the surrounding rocks and water. We can use this heat to warm our homes or generate electricity! Creation supported by aha.bayern and @wissenschaftsjahr | Kurzgesagt

If Earth was twice as big, we'd have much more space for everyone, but we'd also have a lot more problems, too. | Kurzgesagt