How many adams are there in the world

But looking closer, at the atomic scale, the numbers get even more inconceivable. At this level, it is estimated that the there are between 10 78 to 10 82 atoms in the known, observable universe. As stated already, this estimate accounts only for the observable universe which reaches 46 billion light years in any direction, and is based on where the expansion of space has taken the most distant objects observed. While a German supercomputer recently ran a simulation and estimated that around billion galaxies exist within range of observation, a more conservative estimate places the number at around billion.

Since the number of stars in a galaxy can run up to billion, then the total number of stars may very well be around 1. On average, each star can weigh about 10 35 grams. Since each gram of matter is known to have about 10 24 protons, or about the same number of hydrogen atoms since one hydrogen atom has only one proton , then the total number of hydrogen atoms would be roughly 10 86 — aka.

Within this observable universe, this matter is spread homogeneously throughout space, at least when averaged over distances longer than million light-years. On smaller scales, however, matter is observed to form into the clumps of hierarchically-organized luminous matter that we are all familiar with.

In other words, there are no regions of the universe that have more matter than others. This idea allows scientists to accurately estimate the number of stars and galaxies in the observable universe, which is useful because most atoms are found within stars. Knowing the observable universe's size and that matter is equally and finitely distributed across it makes it a lot easier to calculate the number of atoms.

However, there are a few more assumptions we have to make before we break out the calculator. First, we must assume that all atoms are contained within stars, even though they aren't.

Unfortunately, we have a much less accurate idea of how many planets, moons and space rocks there are in the observable universe compared with stars, which means it is harder to add them into the equation. But because the vast majority of atoms in the universe are contained within stars, we can get a good approximation of the number of atoms in the universe by figuring out how many atoms there are in stars and ignoring everything else.

Second, we must assume that all atoms in the universe are hydrogen atoms, even though they aren't. As you will see shortly, it also makes the calculations a lot simpler. To work out the number of atoms in the observable universe, we need to know its mass, which means we have to find out how many stars there are. Of course, this is just a best guess; galaxies can range in size and number of stars, but because we can't count them individually, this will have to do for now. On average, a star weighs around 2.

Both of these estimates are large numbers, yet they are very different, indicating a significant degree of error. These estimates are based on hard data, so they are correct based on what we know. Revised estimates will be made as we learn more about the universe. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content.

Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Some of these values are estimates since we really don't know exactly what the center of the earth is made of but scientists have pretty good theories about it.

In the table is also a list of how many grams a mole of an element weighs. The bottom line is that there are about 1. If you want to write it with all the zeros it would be:.