Can we see air or not?
We can't see air because it is colorless, odorless, and transparent gaseous matter.
How do we know air is there if we Cannot see it?
1:142:58Why can’t you see air? – YouTubeYouTubeStart of suggested clipEnd of suggested clipOften and it has to be big enough for light to reflect off it and then go back to our eyes airMoreOften and it has to be big enough for light to reflect off it and then go back to our eyes air molecules are much too small for light to reflect off them in any really meaningful.
Can humans see air particles?
Air molecules are too small and too far apart for our eyes to see them. Water molecules in water are close together, but eyes can't see things as tiny as water molecules, which would all look the same and are all packed together.
Why air is invisible and sun is visible?
Air is a mixture of gases, mainly nitrogen and oxygen, with small molecules that are far apart. Wavelengths of light may pass by these molecules without hitting them.
Can we touch air?
Explanation: We can't touch air because it is invisible…..
Does air make noise?
air does not create sound, it is simply the transport medium for sound waves.
Can fish See our air?
Air has an extremely low refraction index, making it impossible to see. Neither us nor fish can see the air in the environment.
How do we see air?
Air is normally invisible. From space, the atmosphere, which is made of air, looks like a thin blue band because of the way the light passes through it. That's the same reason why the sky looks blue. Down here, we can trace air with smoke or feel it with a fan.
What if atoms touch each other?
3. If "touching" is taken to mean that two atoms reside in the exact same location, then two atoms never touch at room temperature because of the Pauli exclusion principle. The Pauli exclusion principle is what keeps all the atoms in our body from collapsing into one point.
What air is made of?
Air is mostly gas The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of other gases, too, such as carbon dioxide, neon, and hydrogen.
Can you hear underwater?
In one study, participants were able to hear frequencies as high as 200,000 hertz underwater, which is ten times higher than the top frequency that people are able to hear on land (20,000 hertz if you do the math!).
Can you hear someone scream underwater?
0:131:04Can you scream underwater? – YouTubeYouTube
Does fish get thirsty?
The answer is still no; as they live in water they probably don't take it in as a conscious response to seek out and drink water. Thirst is usually defined as a need or desire to drink water. It is unlikely that fish are responding to such a driving force.
Can a fish drown?
Most fish breathe when water moves across their gills. But if the gills are damaged or water cannot move across them, the fish can suffocate. They don't technically drown, because they don't inhale the water, but they do die from a lack of oxygen. Fishing equipment, such as some types of hooks, can damage the gills.
Is it possible to put your hand through a wall?
Yes, from quantum mechanics it is possible but very very unlikely or you have to wait a very very long time for it to happen. And even then it's more likely your atoms will tunnel into voids in the wall one by one before you jump through coherently.
How long do atoms last?
Ultimately, even these stable atoms have a limit imposed by the lifetime of proton (>1025 years). Remember, though, that the best estimate of the present age of the universe is the much smaller number of 1010 years, so for all practical purposes, atoms are forever.
How was air created?
The surface was molten. As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten to 200 times as much carbon dioxide as today's atmosphere. After about half a billion years, Earth's surface cooled and solidified enough for water to collect on it.
Is air a liquid?
In particular, oxygen and nitrogen, which are the major components of air, occur in nature as diatomic (2 atom) molecules. Under normal conditions, matter exists as either a solid, a liquid, or a gas. Air is a gas.
Why can’t we hear the sun burning?
On earth, we cannot actually "hear" the solar sound waves because the sound waves cannot travel through outer space. Sound waves can only pass through gas (like the air) or liquids (like the ocean), both of which are absent in outer space.
Can you scream underwater?
The answer is yes. While yelling underwater is still audible, it's not nearly as effective as it is in air.
Can you hear in space?
No, you cannot hear any sounds in near-empty regions of space. Sound travels through the vibration of atoms and molecules in a medium (such as air or water). In space, where there is no air, sound has no way to travel.
Why is it hard to talk underwater?
How does sound going slower in water make it hard to talk to someone underwater? Sound travels faster in water than in air. The speed of sound in air under typical conditions is about 343 meters per second, while the speed of sound in water is about 1,480 meters per second.
Do fish ever fart?
If you consider farting to be the by-product of digestion – in other words gases expelled from the rear end – then most fish don't fart. However there are two exceptions, the shark and the herring.
Can a fish survive in milk?
Fish have evolved over many millions of years to survive in water with a certain amount of dissolved oxygen, acidity, and other trace molecules. So, though skim milk is nine-tenths water, it still would be entirely insufficient to support a fish for long.
Can a fish get drunk?
That's right—fish get drunk, too! Working with Zebrafish—a common fish used in lab studies—researchers at NYU exposed fish to various environments of EtOH, technical-speak for alcohol.
Why don’t we fall through a chair?
The reason we do not fall to the center of the Earth is the same reason you don't fall to the floor when you sit down in a chair; the electrons in your body repel the electrons in the chair. More specifically, there is an electron cloud around each atomic nucleus.
Is anything really solid?
As most people who have done any amount of physics know, no object is truly solid; go small enough and you will find vast amounts of space containing atoms, electrons, etc, all relatively enormous distances away from each other.
Will my atoms exist forever?
Ultimately, even these stable atoms have a limit imposed by the lifetime of proton (>1025 years). Remember, though, that the best estimate of the present age of the universe is the much smaller number of 1010 years, so for all practical purposes, atoms are forever.
Can you create an atom?
In atomic physics, scientists can create an atom, known as a Rydberg atom, in which one single electron is highly excited and orbits its nucleus at a very large distance.
Who made air we breathe?
We believe in the free flow of information The chemistry of the air we breathe is, at least partly, the result of billions of years of photosynthesis. Plant life has transformed our world from one cloaked in a carbon dioxide-rich atmosphere – as seen on Mars or Venus – to one with significant oxygen.