Not everyone can wear a mask, so let’s publicly humiliate them!

In February or early March, if you wore a mask, you were publicly humiliated and the subject of antagonism on social media – masks were useless when worn by the public said the experts!

Weeks later, wearing a face mask was then encouraged. But if you wore the wrong kind of mask – such as a surgical mask or a non-medical grade N95 used mask you had in your shop, which you bought last year – you were publicly called out for wearing PPE that should be turned over to your local hospital. (Reality check – hospitals threw away donated PPE that had been used or was unsuitable).

Then, they said, use a home made cloth or improvised face mask. If you were not wearing a face mask, you were then publicly humiliated and called out for putting other people at risk, you selfish jerk!

I have seen comments on social media and in newspaper Letters to the Editor, calling out people for wearing bandannas, scarves or other insufficient face covering (which was, in fact, specifically listed as sufficient by the CDC).

Now businesses are banning people with bona fide documented medical reasons for not covering their airway, in violation of the ADA.

No matter what you do regarding face masks, you are  wrong. There is no way to do the right thing – anything and everything you do is  wrong in someone’s view.

Continue reading Not everyone can wear a mask, so let’s publicly humiliate them!

TikTok Secretly Spying On iPhone Users?

TikTok app on iPhone has been copying the contents of the “clipboard”. Now that your clipboard is shared across devices, stuff you copied to the clipboard on a Mac can end up on an iPhone and then intercepted by TikTok. TikTok will have to change the feature, moving forward. Whether something similar is done on Android is not known.

Ever copy a password to your clipboard? Well, duh, we all have!

Source: Warning—Apple Suddenly Catches TikTok Secretly Spying On Millions Of iPhone Users

The “hovercover” – very interesting concept

Throughout the week commencing June 8th, Griffon Hoverwork & Stuart Canvas Group successfully delivered and installed…

Posted by Griffon Hoverwork on Tuesday, 23 June 2020

Interesting concept, using hovercraft-like technology to create a “floating” covered area on a sensitive surface. See the above for more information.

I am a hovercraft enthusiast. I just finished re-coating the surface of my 14 foot hovercraft from its original blue color to Piper Cub Yellow. This is a homemade hovercraft, covered in aircraft fabric on the top surface, and powered by a 16 hp lawn mower engine. Top speed is about 25 mph. Total weight is about 300 pounds and can carry 2 adults (3 adults if not too big and you are patient about getting up on the air bubble).

The original blue covering was peeling and cracking. That was painstakingly removed from the old fabric over a period of weeks. The fabric was repaired (several torn sections had to be fixed), cleaned, vacuumed, re-shrunk (heat shrinkable fabric), and then coated with an adhesive layer, then 3 coats of a “filler” layer and ultraviolet light protectant, and then five coats of Piper Cub Yellow. I used the Stewart Systems water-based coating system, rather than the traditional nitrate dope and butyrate dope method. Really liked using the Stewart Systems products, their tech support was very helpful, their online downloadable e-book is excellent – and I would recommend their products for similar fabric coverings.

When operated with 2 people, the hovercraft exerts a force of perhaps 7 to 9 pounds per square foot – vastly less than a person standing on their feet! A 200 pound person is putting 200 pounds on the ground – over may be 1/2 square foot of surface, by comparison!

coronavirus apps do not need 60+% adoption to be effective 

A meme has been established that smart phone contact tracing apps need at least 60% adoption to provide any benefit. That is not the correct interpretation as their could be detections at lower adoption levels, and if you detect anyone, then that is defined as a “benefit”, albeit, it may be a very small benefit – such as detecting one or two potential contacts, which is probably not sufficient to make any difference in disease spread.

MIT Technology Review cites Iceland as an example of 40% adoption rate and suggests this is a “significant level of adoption”.

Uhhh, no, and the source they cited to make this claim actually says the app “hasn’t helped much”.

Continue reading coronavirus apps do not need 60+% adoption to be effective 

UK’s NHS tried to stop development of third-party contact tracing smartphone apps

The UK has since abandoned its NHSX developed app and is now moving on to a new app based on Google/Apple tech, but is not expected to release the new app until … end of 2020:

Developers of several apps were urged to stop work by either NHSX or the Ministry of Defence, who told them their apps might distract attention from NHSX’s app when it was launched. Last week the app was abandoned after three months, with work beginning on an alternative design without any deadline.

Prof Tim Spector, of King’s College London, said that NHSX had treated his Covid symptom tracker research team as “the enemy”. “We were hampered from the beginning, in March when we first contacted NHSX,” he told the Observer. “They were very worried about our app taking attention away from theirs and confusing the public.

Source: NHS Covid app developers ‘tried to block rival symptom trackers’ | Technology | The Guardian

Adoption of contact tracing app in France off to a very slow start

France was one of the first Western countries to build an app to track exposure to the coronavirus, but sluggish takeup rates could limit its usefulness in preventing a second wave.

Source: French Contact-Tracing App Struggles with Slow Adoption. It Isn’t Alone – WSJ

What many do not understand is that it requires a lot of people to have a smart phone and to install and use the app for a phone to detect potential coronavirus exposures.

To illustrate – in most modern countries about 80% of adults have a smart phone (plus or minus). When we adjust the figure for young kids who do not have a smart phone, about 2 in 3 people have a smart phone or 63%.

If half of all smart phone users install a contact tracing app, then we have about 32% have the app. In order to detect a contact, you need to be close to someone else with the same app. The probability of that occurring is .32 x .32 or 10%. Thus, what seems like wide spread adoption yields a potential of detecting just 10% of possible Covid-19 contacts.

And this probability does not take into account the problems with contact tracing apps:

  1. Incapable of detecting contacts across time (someone sits on a bus seat, coughs, gets up, leaves, and then you sit there)
  2. Difficulties with multi-path radio signals that result in false signal strength readings (this is common)
  3. Incapable of detecting when there is a barrier between contacts. For example, you are on a bus stopped at a bus stop while the driver takes a break. Someone with Covid-19 standing outside the bus results in alerting your phone that you just had a contact. Except you really did not due to the physical barrier.

Japan pulls its coronavirus tracking smartphone app due to software design errors

The Japanese government has pledged to fix within a week bugs that have caused its coronavirus contact-tracing smartphone app to be shut down, the health minister said Tuesday.

The free app, which was launched Friday and downloaded around 3.71 million times as of Tuesday morning, erroneously accepts ID numbers not issued by the Health, Labor and Welfare Ministry, Katsunobu Kato, the minister responsible for the system, said at a press conference.

Source: Bugs force Japan gov’t to temporarily shut down virus contact-tracing app