- Is anything lighter than hydrogen?
- What is lighter than air but couldn’t be lifted by the world’s strongest person?
- What flies all day without going anywhere?
- What weighs nothing but you can see it?
- What has a face but no head?
- Are there any liquids lighter than air?
- Is nitrogen lighter than oxygen?
- How high can a bubble go?
- Why do bubbles initially float but eventually sink?
- What is lighter than a feather but can’t be lifted?
- What is lighter than air can be seen?
- Is a bubble lighter than air?
Is anything lighter than hydrogen?
The only thing lighter than hydrogen is…
a vacuum airship.
That’s right, you can evacuate all of the air inside your aircraft to make it even more buoyant, but the problem is that the outside atmosphere will be pushing in with 14.7 psi so you will need a very strong air-frame to resist that force..
What is lighter than air but couldn’t be lifted by the world’s strongest person?
Answer. Bubble is lightier than air.
What flies all day without going anywhere?
According to the given riddle, the correct answer will be a flag.
What weighs nothing but you can see it?
It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter. What is it? A hole.
What has a face but no head?
What has a face, but no head; hands, but no feet; yet travels everywhere and is usually running? Answer: A watch.
Are there any liquids lighter than air?
The density of liquid hydrogen is 70 kg per cubic meter. This is the lightest liquid there is. (It only exists under conditions at which air would be solid.) There are no liquids less dense than atmospheric air, so drops cannot float away into the atmosphere.
Is nitrogen lighter than oxygen?
Oxygen is denser than both air and nitrogen, at all temperatures and pressures, but only slightly. Since they don’t separate from each other, we generally don’t worry which is lighter or heavier. The difference in the density of nitrogen and oxygen gas comes from their molecular weight, which is small (4 g/mol).
How high can a bubble go?
With the right patience and finesse, you can get soap bubbles to grow to enormous sizes. At their most gigantic, with surface areas approaching 100 metres squared (over 1,000 square feet), these globules can get large enough to hold entire cars within their fragile grasp.
Why do bubbles initially float but eventually sink?
Dry ice is used as a source of carbon dioxide gas with which to blow bubbles which sink in air. Hydrogen or methane is used to blow bubbles which float in air and which can be ignited. Mixtures of carbon dioxide and hydrogen are used to blow bubbles which initially sink but eventually float in air.
What is lighter than a feather but can’t be lifted?
I’m lighter than a feather but even the world’s strongest man can’t hold me for more than a few minutes. What am I? Breath. Air is light, but even Stig Severinsen, the world record holder can only hold his breath for 22 minutes.
What is lighter than air can be seen?
Vink’s Riddle: “What is lighter than air, can be seen by the naked eye, and if put in a barrel, will make the barrel lighter?” A hole! Not AAA whole but a whole.
Is a bubble lighter than air?
Bubbles are comprised of gases, which have a lesser density than water. Since they are less dense, they get pushed up to the surface, and they rise, lighter than the liquid around them. This is just like helium in air; helium is lighter than air, so it rises, pushed to the top by the pressure around it.