Author: Saswata Sarma

Saswata Sarma
Hey there, I am using raabnits.
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Why doesn't my phone scroll if I place a ring on the screen?

(Full disclosure — I posted this first on Physics SE and it was suggested it might be a better fit here.) If I place a ring on the screen of my phone, and then try to scroll with my finger...

5 mins ago 2
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What was the first "all-civilian" animal spaceflight?

As long as SpaceX is (inaccurately) claiming the "first all-civilian spaceflight", what was the first spaceflight with animals that were all "civilians"? That is, they...

8 mins ago 2
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Thevenin theorem about Vth

Hi everyone! This is the question related to thevenin theorem. I have found Rth by making 6kohm open but I'm having some difficulties finding Vth for this circuit.Can someone please guide...

28 mins ago 2
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What are the various Bitcoin nodes available which I can connect to via my lightning node

I am thinking of running my own lightning node in testnet. Going through the tutorials it seems the lightning node needs to be connected to bitcoin node inorder to get connected to bitcoin...

51 mins ago 2
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unable to right click on Ubuntu Studio xfce

I just installed Ubuntu Studio 20.04.03 xfce on my Asus M80VD-EB76 laptop. I'm liking it so far, except that I can't get two finger right click to work like I had on my old ubuntu...

52 mins ago 2
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What is the file of a USB in Android?

Considering that Android uses the Linux kernel, and that it reflects the recognized devices in /dev, /media and /run/media, where is the equivalent of fe. /dev/sda for a USB flash? I know...

52 mins ago 2
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What happens when a source cannot supply enough current

So this is a really simple EE question but I am having trouble wrapping my head around it. Basically, what happens if my circuit draws more current than my source is able to supply? For example,...

1 hour ago 2
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How do I find the exchange an address belongs to

How do I find the exchange that an address belongs to? I have an address that I have sent Bitcoin to but I forgot what exchange that address was for.

2 hours ago 2
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ESP32 ILI9341 Intermittent White Flashing Screen on Power Up

I am designing a tool for a CNC Machine and it's my first attempt at PCB design, I was looking for some help in troubleshooting an issue. I'm using an ESP32 MCU and it's connected to an ILI9341...

2 hours ago 2
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Display Systemd's ExecStart instruction with dynamic-variables

Wondering if there's a way to extract the complete ExecStart instruction utilized by any given Systemd service. See that by "complete" I'm referring to the interpolated version of...

4 hours ago 2
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using bzip gzip zip in bash

#!/bin/bash #check if the user put a file name if [ $# -gt 0 ]; then #check if the file is exist in the current directory if [ -f "$1" ]; then #check if the file is readable in the...

4 hours ago 2
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How to quote after semicolon

If I'm quoting a text that comes right after a semicolon, would I type "....text" or capitalize the word that comes right after the semicolon like "Text"?

5 hours ago 2
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Can you run a terminal emulator under a tty?

I would like to know if you can run a terminal emulator under a tty since I just started the program alacritty. If there is a way, no matter how hard it would seem, I would like to try it,...

5 hours ago 2
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Can tar decompress an archive without untarring it?

If I have a compressed archive (e.g. archive.tar.xz), I can decompress it and get the archived files back with tar xf archive.tar.xz. As far as I understand, this is technically...

6 hours ago 2
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Complex Frequency

I am building up a RF transceiver using integrated up/down converter chip. This particular chip requires a complex Intermediate Frequency as inputs for up conversion (Tx-IF-I, Tx-IF-Q). ...

7 hours ago 2
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Deliyannis-type narrowband filter is oscillating when I apply GND to the input

TLTR: My Deliyannis-type narrowband filter is oscillating when I apply GND to the input Vin. I was expecting to get almost zero volts, but I am actually getting a sine wave at almost 20KHz....

7 hours ago 2
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Use bash instead of tcsh for non-interactive shells

I have an environment similar to the one in this question: Different shells for interactive and non-interactive work I'm currently stuck with tcsh as my "official" default shell....

7 hours ago 2
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Troubleshooting Casio graph 90+E USB

My son owns a Casio graph 90+E USB calculator (French version), and put it in so-called exam mode. It thus flashes a red LED periodically even when off, which drains the batteries faster....

7 hours ago 2
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How to formally state the positive,negative feedback and his effect on the circuits?

I understand the concepts, I mean, if the idea is an amplifier or filter or any linear device, we use the negative feedback. But in the case of a Schmitt trigger or the hysteresis, the positive...

7 hours ago 2
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What are worthwhile descriptive visualisations?

I am currently in the final stages of writing my master thesis. I have collected quantitative data through a questionnaire to test the hypotheses derived from literature. Details are as follows:...

7 hours ago 2
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