Typing might be faster, but longhand stays with you better. //

One of the most important parts of learning new information is the ability to retain it and recall it later when it is relevant. Writing by hand on paper creates a tactile, personalized experience each time a person takes notes. The complex experience of hand writing on paper contains a multitude of variable elements: the creativity of an individual’s written representation of language, the texture of the paper itself, the fine motor skills needed to translate thoughts into written language, the engagement of the physical senses, and even the reading comprehension strength that we learned of earlier. All of these complexities create a stronger memory of the information that is taken in during the note taking.

There have been a few scientific studies done on the subject of information processing through digital note taking and notes taken by hand. A recent study led by neuroscientist Professor Kuniyoshi Sakai at the University of Tokyo published in March 2021 showed that subjects who recorded calendar event information on paper showed more brain activity than subjects who recorded the same information onto a smartphone when they attempted to recall details about that calendar information later. And they recalled/entered the information 25% faster when writing it by hand.

Following the sky-high box-office numbers of “Top Gun: Maverick,” anyone who glanced at the movie trailer for “Devotion” — a true story of heroic U.S. Naval pilots, currently in theaters — probably thought producers were trying to cash in on the craze.

This historical film has been in the works for over six years, however, starting shortly after the book, “Devotion: An Epic Story of Heroism, Friendship, and Sacrifice,” began to make waves. It recounts how two long-overlooked pilots led a mission that turned the tide in the Korean War’s most brutal battle.

“That entire war has been woefully forgotten,” author Adam Makos told me in a phone interview. “The last major Korean War movie was ‘Pork Chop Hill’ starring Gregory Peck, released in 1959 — over 60 years ago. And Hollywood hasn’t gone there since.”

RCDs are very effective devices to provide protection against fire risk[1] due to insulation fault because they can detect leakage currents (ex : 300 mA) which are too low for the other protections, but sufficient to cause a fire. //

Some tests have shown that even a fault current as low as 300 mA can induce a real risk of fire (see Figure F74) //

For TT, IT and TN-S systems the use of 300 mA sensitivity RCDs provides a good protection against fire risk due to this type of fault. //

The IEC 60364-4-42:2010 (clause 422.3.9) makes it mandatory to install RCDs of sensitivity ≤ 300 mA in high fire-risk locations (locations with risks of fire due to the nature of processed or stored materials - BE2 condition described in Table 51A of IEC 60364-5-51:2005). TN-C arrangement is also excluded and TN-S must be adopted. //

In TN-C system, RCD protection cannot be used, as the measurement of earth fault current by a sensor around line conductors and PEN will lead to permanent wrong measurement and unwanted trip. But a protection less sensitive than RCD but more sensitive than conductors’ overcurrent protection can be proposed. In North America this protection is commonly used and known as “Ground Fault Protection”.