Emyrssentry
Emyrssentry t1_jefe7jy wrote
We have their avian descendants to look at, as well as other large animals. That gives us a reasonable idea of the pitch/volume a dinosaur might have.
But it is important to remember that there is no guarantee. The things you see in a fossil are not even close to the whole picture.
Emyrssentry t1_jeen86w wrote
Reply to comment by richiehustle in ELI5: Why computer chips nanometers progress is gradual? Why can not the technology bump up to the lowest nm possible immediately since the concept and mechanisms of it is already known and studied by richiehustle
Because there are parts to the situation where you calculate it out, and it might work, but then you go to build your fabrication machines, and nothing you do gives you the precision necessary to make the transistors that small.
And now you've just put 3 years of intense engineering and money into a product that doesn't even make it to market.
Emyrssentry t1_jebhodb wrote
Reply to ELI5: how can the data gathered by Google, tiktok, Instagram etc etc be used to harm me? by DuckoPond
Demographic data can be inferred from usage data. And if you're in a demographic that is currently being persecuted by certain lawmakers, that is a dangerous situation.
There was a time when Target outed a young woman as pregnant to her dad because of her shopping habits, Google would be able to know that just as much or more. For a current events example, someone searching for abortion access in a restricted state could be at risk of that data being used against them.
For a more direct situation, predatory advertisements would be able to pick out vulnerable people from the tracked data, and exclusively target them, like a payday loan agency only targeting those already deep in debt.
Emyrssentry t1_jebh4x1 wrote
Reply to ELI5 what’s the point of safewords? by sieis
A safeword/safety action is used in any situation where the word "stop" cannot otherwise be used to stop. Examples being: when the word stop is part of roleplay, or when the use of the mouth is limited.
Emyrssentry t1_jeb2raq wrote
Reply to comment by degening in ELI5 How Zeno's Paradox is a paradox? by TheFlaccidCarrot
Not all paradoxes can be solved with mathematics.
This sentence is false. That's a paradox as well. It cannot be true nor false. No amount of mathematics can make it true or false, it is a logical impossibility.
Emyrssentry t1_jeb22ap wrote
We use the word paradox in a couple different ways. One is in logical contradictions, i. e. "This sentence is false." It is impossible to have the statement be either true or false, so it is a paradox. "A married bachelor" is another paradoxical statement, as you are definitionally bound by the word "bachelor" to be unmarried.
Another way we use paradoxes is in seemingly contradictory statement that do actually have an answer. Zeno's paradox falls in this category. Like you say, there is the definite answer that Achilles does catch the tortoise, the seemingly contradictory part is the description that you have to cover an infinite number of ever smaller but never 0 distances to go anywhere, so how can you move?
The answer being that the time it takes to move those smaller increments also decreases to 0 at exactly the same rate.
Emyrssentry t1_jad1axu wrote
Reply to comment by Jtrain360 in ELI5 How did we figure out the order for PEMDAS? Like how do we know that that order is correct? by ToodlyGoodness
All you really need is a system for denoting "do this part before you calculate the rest" (parentheses). As long as you have that, you can do every calculation exactly right, regardless of whatever other order of operations you have.
The only issue you'd have is clarity. A dozen nested parentheses is not a recipe for clear equations.
Emyrssentry t1_ja9i0et wrote
Reply to comment by Ohwja in Eli5: How did people know how long a year was in olden times? by Slokkkk
That's patently false. The Egyptians were able to create a 365 day cycle completely independently from any winter/summer cycle. A 360 day year, with 5 extra days added between the years.
Emyrssentry t1_j9koipa wrote
Reply to comment by ScienceIsSexy420 in ELI5: Are all solids minerals? If not, why? by CaitlinN22
As an example, both sapphires and rubies are the same mineral (corundum) with different impurities that change the color.
Emyrssentry t1_j6k7152 wrote
Reply to eli5 Why can't you divide by 0? by CasinosDetract
Let's look at numbers very close to 0
1/.1=10
1/.01=100
1/.0000001=10,000,000
Etc. The closer you get to dividing by 0, the closer your answer tends towards infinity (and negative infinity if you come from the negative direction.)
So why would you arbitrarily define 1/0 to be 0? It doesn't give you any extra predictive power. It doesn't really lead to much, and you still have to leave it out in any situation where you're not defining it. It's just not a very useful definition.
Emyrssentry t1_j6k47ts wrote
Light is one of the fastest things. In fact, there are other things that move precisely at the speed of light. These are gluons (tiny particles that hold protons and neutrons together) and potentially gravitons (the particles that would carry the gravitational force if we can merge quantum mechanics with General relativity).
The speed of light isn't actually just the speed of light. It's the speed of anything that does not have mass. Photons are the thing that we often see that doesn't have mass, so it was given the name "speed of light" rather than "speed of gluons".
But the key is that photons are massless. We cannot have things go faster than the thing with 0 mass. Because mass inherently slows things down.
So unless you can find something with negative mass. (We have no real expectation that such a thing exists), everything is moving either at the speed of 0 mass particles, or slower.
Emyrssentry t1_iub0qgy wrote
Reply to ELI5: How come humans have two big muscle and fat pouches on either side of their anus? by CJsTT
Are you talking about the glutes? Because we use those to walk. Walking is more important than disease.
And I'm not getting where the "that spreads disease" part comes in. Most disease comes from the presence of the anus, and the contents from it. And those things are also necessary, so we can't just get rid of it.
Emyrssentry t1_jefkwkh wrote
Reply to ELI5:How electrecution happen at high voltage in near proximity without touching( HV lines). by ReferenceThin6645
High voltage lines have the ability to ionize the air around them, and turn the air into a wire. If that area of ionized air can reach something that grounds the wire, you'll get an arc. This is lightning.
And so if you get too close, the wire could ionize the air around them, and that ionized air touches you, and since you can ground the wire, it arcs to you, causing electricity to flow through you, potentially stopping your heart.