In Ethereum, what is an uncle block? [closed]

In Ethereum, what is an uncle?

Why does Ethereum take this approach, instead of having a single chain of blocks back to the genesis block?

If you mine a block, and it only gets included as an uncle, how much of the original reward do you get?

How long after the uncle is created is it allowed to be included into a block?

How do I determine the value of new altcoins?

So, I’m curious about the value of altcoins.

Let’s say I were to create an altcoin, and get some people to use it… how would I calculate the value of the coin? Is this determined by exchanges? Or by how much money people give in exchange for X amount of the coin? I’m a bit confused by this. I’ve tried researching it, but nothing’s really helped.

Thanks in advance!

My miner doesnt show up on network but running?

I have an S3+ and yesterday it stopped showing up on my IP scan and connecting to my pool. It still runs the fan (very low speed though) and shows the lights for a network connection, so does my modem. But I can’t access its setup or see it mining in my pool. I have tried all the usual troubleshoots, 3 different PSU’s, reset, new internet connection but none of them helped, any idea why this could be happening, help is appreciated