💭Filling an air mattress with helium does not make it float in the air due to the low density of air.
💨Helium is the second most abundant element in the universe and is obtained from the radioactive decay of elements like uranium and thorium.
🌍Helium easily escapes the Earth's atmosphere, leading to a shortage.
🏨Introducing Wallabout Home, a fall detection device for people at risk of falling at home.
🎈Hydrogen balloons may become a more common alternative to helium balloons in the future.
Why doesn't an air mattress filled with helium float?
—An air mattress filled with helium doesn't float because the density of air is much lower than the density of helium.
Where does helium come from?
—Helium is obtained from the radioactive decay of elements like uranium and thorium.
Why is there a shortage of helium?
—Helium easily escapes the Earth's atmosphere, leading to a shortage.
What is Wallabout Home?
—Wallabout Home is a fall detection device for people at risk of falling at home. It uses radio frequency to detect falls and automatically calls a caregiver if necessary.
What could be an alternative to helium balloons?
—Hydrogen balloons could be a more common alternative to helium balloons in the future.
00:00In this video, we test whether an air mattress filled with helium can float.
02:45Unfortunately, the helium-filled air mattress doesn't float in the air due to the low density of air.
04:00Helium is the second most abundant element in the universe and is obtained from the radioactive decay of elements like uranium and thorium.
08:19Helium easily escapes the Earth's atmosphere, leading to a shortage.
09:00Introducing Wallabout Home, a fall detection device for people at risk of falling at home.
09:43Hydrogen balloons could be a more common alternative to helium balloons in the future.
