Miscellaneous Facebook posts & comments in or around Sept. 2022

When author of post or comment is not mentioned, it should be assumed that it is me (Ravi S. Iyer).

To save time, I am usually not providing my FB post links but only contents. I am also not hyperlinking links. So readers may have to copy-paste links from this post onto a browser link box and then browse to that link.

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Scary snooping power of high-end mobile phone cameras

Tweet below with short video shows how with a sophisticated mobile camera (Samsung S22 Ultra which seems to cost around Rs. 1 lakh) one can easily be snooped upon. 

https://twitter.com/Astro_Healer_Sh/status/1575059649602400257

With iPhone 13 Pro ... https://twitter.com/dorjeeG/status/1575327850474913794

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Great singing by Jeffrey Iqbal (Pakistani it seems though I thought he is a white American guy) and playing of Tabla by Jomy George (seems to be from Kerala and not African-American though that's what I thought at first glance) in this 50 second short video of part of a 2006 Hindi film song.

mitwa jomygeorge and jeffrey iqbal, https://www.youtube.com/watch?v=mgMSl00i3Js, 50 seconds, published by Jomy George on 30th Dec. 2020

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I looked up the net for this and noted that the same pic was on the wiki page of open-air schools. The page has a good introduction section which explains that such open-air schools were set up as a way to combat spread of TB. From https://en.wikipedia.org/wiki/Open_air_school :

Open air schools or schools of the woods were purpose-built educational institutions for children, that were designed to prevent and combat the widespread rise of tuberculosis that occurred in the period leading up to the Second World War. The schools were built to provide open-air therapy so that fresh air, good ventilation and exposure to the outside would improve the children's health. The schools were mostly built in areas away from city centers, sometimes in rural locations, to provide a space free from pollution and overcrowding. The creation and design of the schools paralleled that of the tuberculosis sanatoriums, in that hygiene and exposure to fresh air were paramount.

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FB post:  https://www.facebook.com/ravi.s.iyer.7/posts/pfbid031RvVhMkmfn21s8BCrMMLZiX4X79yFahhjRdUK2rEfLE7RB9Xj7xMgXeT3w9ggMRMl

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FB post:  https://www.facebook.com/ravi.s.iyer.7/posts/pfbid02VEjnzLwXRRzukWvEJfFz9HNrkED2m8d3NvkGYrvkJZqk1e1zmL5gwdnHotRi3rSbl (has pics)

Nice motion sensor light product

SENIOR WORLD Juvo Wonderlite Motion Sensor Battery Operated Automatic LED Light (White) https://amzn.eu/d/baSrbh1 , Rs.890.

It is easy to figure out where to place the product or how to move or wave one's hand, in front of the sensor part of it, for the light to come on. The light is good enough to easily see inside the room.

It switches off after 30 seconds but comes on immediately if one waves one's hand or moves in front of the sensor of the product.

I was wondering about safety of infra red sensor in motion sensor light: As per its above product page on amazon, it uses PIR (Passive InfraRed) sensor.

https://en.m.wikipedia.org/wiki/Passive_infrared_sensor states that PIR motion sensors do not emit InfraRed (IR) light. So they must be safe.

It has 3 settings of On (can be used as a torch which does not auto shutdown after 30 seconds), Auto (motion sensor operates and light has 30 second auto shutoff setting), and Off (it stays off till slider is moved to On or Auto). There are cheaper products of this type on Amazon but while I was looking around, the cheaper ones I came across did not have On, Off and Auto settings.

It also senses the light in the room and if there is a lot of light then it does not come on even if one moves in front of the sensor.

It uses 3 AA batteries - it does not have a rechargeable battery.

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On FB post:  https://www.facebook.com/eve.gardener.980/posts/pfbid032NrbFJPQe2eg2L9XYjis81SLErhP6dWsadLudLNcnbDGnkP7G2Xa6XeFaHwEvndnl , I wrote:

Very insightful comment by Will Durrant!

...
I have read one of these volumes in my youth. I think it was called, "The Age of Faith". I was very impressed by the book.


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