President Abraham Lincoln, Inventor

May 5, 2019

Lincoln is the only U.S. president to have registered a patent. His invention was for a device to help riverboats that ran aground on sandbars. He started work on the device in 1848 when he was a U.S. congressman representing Illinois, and he registered it in 1849. Apparently, he was traveling home from Washington when his boat got stuck on a sandbar, giving him the idea. There’s no indication that the device was ever marketed, but is a demonstration of his great creativity.

#trivia #Lincoln #inventions #uspresidents

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Samsung reveals Galaxy S10 Series of Cellphones

February 21, 2019

Trouble deciding which Samsung cellphone might be right for you? Read the attached Wall Street Journal article which compares the features and costs of the new series of Galaxy S10 phones. It comes in four variations not counting the foldable phone which is coming out April 26.

The foldable cellphone will have tablet-size screen but will fold to pocket size – but be prepared to pay close to $2,000. See below.

#samsung #samsungphones #celltech #technews #earlyadopters

Robots Take Stock for Retailers

January 28, 2019

In pilot studies robots are being tested in retail establishments to check shelves for real time inventory control, and restocking.  It seems as if this is an application whose time has come.  #robotics #roboticsnews #technews #AInews

new job for robots- taking stock for retailers – wsj

Mesh Wi-Fi Kills Dead Zones

December 6, 2018

Mesh wi-fi systems explained and compared.  Joanna Stern, tech reporter for the Wall Street Journal field tested six mesh wi-fi routers and showed how they compare in various categories from signal strength to ease of use.  For the full article from the WSJ (12/6/18) clink on the link below.  #meshwifi #wifideadzones #meshrouters #joannastern

Kill Your Wi-Fi Dead Zones! The Best Mesh Systems for Your Home – WSJ

Irreproducibility Crisis in Science

September 27, 2018

Reproducibility of results is one of the prime building blocks of the scientific method.  A scientist doing the same experiment as another, under the same conditions, is expected to get confirming results.  Pressure on academicians to publish has led to a widespread irreproducibility crisis which has gotten past the peer review process in many cases.

Two common problems are p-hacking and HARKing.  “P-hacking involves running statistical analyses until they produce a statistically significant result; HARKing stands for “hypothesizing after the results are known.”  Everyone using statistics has to know that these are absolutely unacceptable practices.

The attached Wall Street Journal article is about a Cornell University professor, who had an excellent reputation until recently being exposed and being repudiated.

A Cornell Scientist_s Downfall – WSJ

Health Apps are the next “must haves.”

September 21, 2018

Apps to help you manage and protect your health and wellness are quickly going center stage.  From monitoring the amount of exercise you get, to monitoring your blood sugar and heart rate to the new heart monitors on the Apple Watch Series 4, health tech is changing fast.  This article from 9/19/18 gives just a glimpse.

Open Your App and Say ‘Ahh_ – WSJ

Facial Recognition Algorithms Not Perfect

September 18, 2018

Facial recognition programs are already being used but are not always quite ready, and nowhere near perfect.  This Wall Street Journal article (September 18, 2018) highlights some of the successes and failures of deployed facial recognition systems.  How perfect does it have to be to have value finding criminals in a crowd?l

Don_t Believe the Algorithm – WSJ

Degree Days explained

September 15, 2018

“Degree days” is a measure of energy needed to cool or heat building spaces to a comfortable temperature.  It is useful for planning energy costs for different locations, and is far superior than using average temperatures in which highs and lows tend to cancel eachother.  The link below to the Numbers column of the Wall Street Journal is the best explanation I have seen on the subject.  The second link is to a U. S. government website which is also very helpful.

How Do Energy Companies Measure the Tem…re? Not in Fahrenheit or Celsius – WSJ

https://www.eia.gov/energyexplained/index.php?page=about_degree_days

 

Applying Technology for Helping the Elderly – iPads and Robots

May 29, 2018

iPads and robots are  being used to help the elderly manage everything from chronic medical conditions to loneliness.  The link below is to a Wall Street Journal article dated May 29, 2018 which discusses some of these issues.

For the Elderly Who Are Lonely, Robots Offer Companionship – WSJ

Computers help fight malaria

April 25, 2018

Health officials use geospatial mapping to track malaria’s spread, the then use machine learning and artificial intelligence to analyze the data and to deploy resources in the most efficient way possible.

For the full article in the April 25, 2018 Wall Street Journal, click here:

How Long Till the Final World Malaria Day? – WSJ