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Ask Chemistry

In IUPAC Nomenclature, why do we say 1-Ethoxy-2-nitrocyclohexane but 2-Ethoxy-1,1-dimethylcyclohexane?

I mean, how is the numbering done and why is it different in these two cases? Thanks in advance!

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Ask Biology

How can I detect which antibody is produced by the B cell?

I mean ,In primary response IgM is produced (IgD as well) ,In secondary response various types of antibodies are produced . So how do I detect which antibody is B cell is producing at a time.

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Mastering Development System & Network

How to migrate physical server to VMware VM

Using vSphere Client version 6.7, I need to create a new VM that will replace physical server. I’m not sure where to start, I mean, should I create a new virtual switch? Newtork Interface Card? what should I ask myself when approaching to this project? I tried google search shows only VMware converter manuals. Please […]

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Mastering Development System & Network

How to migrate physical server to VMware VM

Using vSphere Client version 6.7, I need to create a new VM that will replace physical server. I’m not sure where to start, I mean, should I create a new virtual switch? Newtork Interface Card? what should I ask myself when approaching to this project? I tried google search shows only VMware converter manuals. Please […]

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Game Creation Mastering Development

What’s the best way to create a Dynasty Warriors-style hack n’ slash game? [closed]

My friends and I got a written story that we want to make a game about. We want it to be a Hack n’ Slash like Dynasty Warriors, of beating a bunch of enemies at once, but we don’t have any experience creating games yet, except for some bad ones made just for fun with […]

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Mastering Development System & Network

How to stop a running shell script if it executes some dangerous operations?

I mean, how to dynamically stop a running shell script based on what operation it’s doing. Because some dangerous commands such as rm, if using regex before running, some edge situations may escape, like #!/bin/bash name="" $name rm a.py will still remove a.py. So is there a way to detect what the next command is […]

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Ask Chemistry

What is the difference between pig iron and wrought iron?

I mean, I know the difference in the properties.. but how are they produced? what is the difference in the method of production?

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Bitcoin Cryptocurrency Mastering Development

How do I start -testnet in -deprecatedrpc to test a script?

everyone. I hope all is well during our COVID-19 pandemic. My question: How do I start "bitcoind -testnet" in "-deprecatedrpc=signtransaction" mode? Do I simply start it the same way without being a test and insert "-testnet" between "bitcoind" and "deprecatedrpc" like this"bitcoind -testnet -deprecatedrpc=signrawtransaction" (I mean, I need this make sure my script is tested […]

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Ask Engineering

Do I need to put a resistor in series with relay coil?

I need to design a circuit to drive a relay and I have some doubts. Do I need a resistor in series with relay coil, I mean, between transistor and relay coil ? Why I always find relays with 12V, can I use a 5V source to energize the coil? Unfortunately, I don’t have current […]

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Mastering Development System & Network

SSH reverse proxying from multiple servers

I was able to reverse proxy from my macOS which worked fine but I didn’t really understand it, I mean, I did but I can clearly see there are some gaps in my understanding, may be the concept of reverse proxying is not very clear to me. ssh -R 7000:localhost:24 hostname ssh -R 7000:localhost:24 x.x.x.x […]