We can often see children on the street holding balloons in their hands. No matter what age, this simple toy is a favorite of children. Balloons float in the air because they are filled with gases that are less dense than air, such as hydrogen and helium. Ten years ago, helium balloons were all over …
Continue reading What should we do when we run out of helium on Earth?
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Don’t touch the orange after peeling it, it will explode! People are recruited every year
It’s the ripening season of oranges again Citrus lovers’ spring is here You can eat it unscrupulously but Eating oranges is also a safety hazard We all know that balloons can’t meet open flames, but did you know that oranges can also detonate balloons? When sweet orange juice meets balloons, unexpected sparks can be collided …
Continue reading Don’t touch the orange after peeling it, it will explode! People are recruited every year