Recent comments in /f/explainlikeimfive

HunterSTL t1_j6met5i wrote

The greatest analogy I heard in that regard is to see the CPU as a couple of professors, each calculating difficult equations, while the GPU is a large group of toddlers each coloring a square.

Of course the professors could also color the squares, but they would just waste their potential since they are able to perform much more difficult tasks. It's simply more efficient to let the couple of professors do the hard work, while the large group of toddlers works on coloring the squares.

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BobbyThrowaway6969 t1_j6mehn5 wrote

It takes energy to fuse atoms together, but the act of fusing atoms together also releases energy, aka, you have to break a few eggs to make an omelette.

As long as the energy coming out of fusion is higher than the energy needed to do it, a star can exist happily.

For all the elements before iron, this is the case, more energy comes out.

Iron, however, is the first element that takes MORE energy to fuse than it gives back, the star isn't so happy any more. It now has to use a lot of eggs to make a rather sh***y omelette.

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Dudersaurus t1_j6mdrhu wrote

Short easy ELI5 answer.

Orange justice is not bad for you in moderation. Heating it, turning it into a mist or vapour and inhaling it is probably bad for you.

Many things that do not irritate our skin or digestive tract create reactions in lung tissue. This can either be severe and bad in the immediate term, or long term mild inflammation can cause scar tissue formation and damage lungs.

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reverseswede t1_j6mdq8o wrote

The quick test will be a point of care test (like a glucose meter but for hb) - they'll then collect more blood to check much more detailed tests - these will give good indications of why the hb is so low - blood count is pretty helpful for leukaemia as you'd find way too many of one type of blood cell. Most common is low iron, also possible low b12. Then there's other things but basically boils down to not making enough blood, or losing too much.

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Martin_RB t1_j6mdhpl wrote

To simplify further: You can think of iron as the ash of atomic reactions.

Why can't you burn ash? Because it's already been burnt and given all the energy it has to give.

The same goes for iron, it is the end result of atomic processes and doing anything with iron requires you putting more energy into it.

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DoctorOtter t1_j6md24x wrote

This is what I want:

12 months in a year

3 weeks in a month

10 days in a week

10 hours in a day

100 minutes in a hour

100 seconds in a minute

These new seconds are not the same length as regular seconds. I haven't done the math but it is possible to just make a second faster or slower.

Every year ends with a leap week of 4 or 5 days to adjust the calendar.

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Etherbeard t1_j6mbxqd wrote

This is absolutely true. For example, there are no rules in English barring the use of split infinitives, ending sentences in prepositions, or beginning them with conjunctions. These were all created by individuals who didn't like them stylistically. These rules percolated around and eventually got picked up by grammar-nazi school marms who drilled it into their students as though it were fact.

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