Simple solutions to complex problems

Simple solutions to complex problems

Each post is devoted to a simple solution to a complex problem.


A simple way to manage multiple smart electronic locks in a very secure manner

23 Oct 2024 5 minute read 0 comments I_g_o_r

A smart electronic lock is an electronic lock, which has a programmable interface to set up different PINs or passwords for the smart lock, duration of these PINs/passwords, some rules, etc. and do not use keys, magnetic cards or other physical objec...

A simple way to cope with depression caused by negative events

8 Oct 2024 2 minute read 0 comments I_g_o_r

World Health Organization estimates that there are about 300 million people with depression worldwide (see [1]). There are many types of depression and many ways to cope with it (see [1-2]). In this post we consider a simple way to cope with depressi...

Simple ways to treat common cold, cough, etc.

1 Oct 2024 3 minute read 4 comments I_g_o_r

In this post we consider some simple ways to treat common medical conditions, which are described in [1]. Here are simple recipes for treatment of common cold. Recipe 1: Fresh ginger 15g, green onion stalk 15g, and pear 120g. These ingredients are bo...

A simple way to dispel popular myths about multi-tasking

24 Sep 2024 3 minute read 2 comments I_g_o_r

There are many popular myths about multi-tasking, which are false. For example, such myths as: -multi-tasking is an universal human ability, which can be applied to any situation; -multi-tasking improve productivity; -multi-tasking improve performanc...

A simple way to train your working memory

17 Sep 2024 2 minute read 2 comments I_g_o_r

The authors of [1], define the working memory (WM) in the following way: “Working memory (WM) is what allows you to access information (in your short and long term memories) and put it to good use. IQ is what you know. Working memory is what you can...

A simple way to optimize learning efficiency from reading dense textual info

12 Sep 2024 1 minute read 4 comments I_g_o_r

In this post we consider a simple method to optimize learning efficiency from reading dense textual information. This method is based on the method described in [1]. The author of [1] states: "Paying attention is central to memorization. Trying to re...

A simple way to convert a physical passwords notebook into a virtual passwords notebook

5 Sep 2024 2 minute read 2 comments I_g_o_r

Traditional passwords managers are not secure, because they violate the main principle of risk management (“do not keep all eggs in a single basket”) and have a single point of failure problem (if a master password or an encryption of a file where al...

A simple way to run a public DPG on mobile devices

28 Aug 2024 2 minute read 0 comments I_g_o_r

Many countries have plans for cashless societies by 2030. What this means for us is that all our assets and money will be in digital forms and will be protected only by our passwords and private keys. A skill in secure management of multiple password...

A simple way to simulate “perfect passwords” with dynamical passwords generators (DPGs)

7 Aug 2024 3 minute read 0 comments I_g_o_r

Keith Martin, who is a professor of information security at Royal Holloway University of London, defines “perfect passwords” in the following way (see [1]). A “perfect password” is a password with the following properties: a) it should be unpredictab...

A simple way to understand how secure are your cryptos with your crypto wallets

13 Jul 2024 6 minute read 0 comments I_g_o_r

Probably, you heard or read that crypto currencies are stored in crypto wallets, by analogy as cash is stored in ordinary physical wallets. If you believe in this statement then you was fooled by the above analogy as many, so called crypto experts, w...