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AkshayGenius

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2019 Revision of the SI units

en.wikipedia.org
4 points·by AkshayGenius·2 mesi fa·1 comments

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AkshayGenius
·mese scorso·discuss
This sounds very interesting and very much in-line with what I’ve been musing as a soon-to-be father.

One question that comes to my mind is do your kids compare their experiences to their friends? If their friends have access to a laptop with internet, or a music subscription service with all the music constantly available (a la Spotify), do they not compare and ask you why their experiences must be so limited? Why do their friends get to be on iMessage and they just have a landline phone number.

These are the kinds of questions that worry me about how much the kids can truly buy in to this. But maybe I’m overthinking this.
AkshayGenius
·2 mesi fa·discuss
In 2019, four of the seven SI base units were redefined. Reading the redefinitions makes for an interesting read and to re-evaluate, understand, frame and model the fundamental forces and quantities of universe in your mind. I’m curious what impact, if any, this has had in scientific research and/or any related fields and how it has been received.
AkshayGenius
·anno scorso·discuss
Is there a reason we keep trying to use higher frequencies in every new wireless standard (Wi-Fi, 5G, now 6G) instead of trying to increase the maximum possible bitrate per second into lower frequencies? Have we already reached the physical limits of the amount of data the can be encoded at a particular frequency?

Lower frequencies have the advantage of longer distances and permeating through obstructions better. I suppose limited bandwidth and considerations of the number of devices coexisting is a limiting factor.
AkshayGenius
·2 anni fa·discuss
Only tangentially related, but on my MacBook Pro simply running

   cat /dev/random 
causes my terminal to hang and my speakers start emitting a loud buzzing sound until the terminal is force-quit or system is restarted.

I can understand the terminal not being able to handle the amount of data from /dev/random but for the speakers to start emitting sounds as a result of this is certainly very strange. Almost like /dev/random was being piped into /dev/audio or something. Anyone have an explanation?