Search:                        
Please support my efforts by ADVERTISING!
Serving a Pleasing Blend of Yesterday, Today, and Tomorrow™

Vintage Magazines

Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post
Electronics Illustrated

Formulas | Data

Electronics | RF
Mathematics
Mechanics
Physics


Calvin & Phineas

Archive | Sitemap
kmblatt83@aol.com

Resources

Radar | AI
Cogitations
RF Museum
Videos | Pics |
Things | Logos
Radio Datashts
WJ Tech Notes
Day in History

Entertainment

Crosswords
Humor | Podcasts
Quotes | Quizzes
Tech Comics

Parts | Services

1000s of Listings


About RF Cafe

Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook
Modular Components - RF Cafe Website

Calculus of Negligence aka "Hand Rule"

Calculus of Negligence, The Hand Rule - RF Cafe WebsiteWhilst reading an article on legal liability, I ran across a reference to the Hand Rule, formulated by Judge Billings Learned Hand (yes, that was his given name). Hand, who studied both philosophy and law, was a judge credited with a keen sense of honor and fair play as applied, in conjunction with Constitutional principles, to such as patents, torts, admiralty law, and antitrust law. The Hand Rule was born out of a trial where an improperly secured barge escaped its moorings and caused damage to other boats. Per the Hand Rule:

"[T]he owner's duty, as in other similar situations, to provide against resulting injuries is a function of three variables: (1) The probability that she will break away; (2) the gravity of the resulting injury, if she does; (3) the burden of adequate precautions. In mathematical terms: B < PL, where B is the cost (burden) of taking precautions, and P is the probability of loss, and L is the gravity of loss. Simply stated, negligence is ruled if the effort required to prevent an event is less than the likelihood that the event will occur, multiplied by the severity of the loss. This, of course, is all subjective, which is why he who hires the lawyer best able to define values for B, P, and L wins the case. I propose an alternate name for it: Fuzzy Law.

Posted  October 2012

Innovative Power Products (IPP) 90 deg Hybrid Couplers - RF Cafe Website
Please Support My Advertisers!
Aegis Power | Centric RF | RFCT
Empower RF | Reactel | SF Circuits

Alliance Test | Isotec
Windfreak Technologies Frequency Synthesizers - RF Cafe Website

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Windfreak Technologies Frequency Synthesizers - RF Cafe Website
EMC Directory Test Equipment & Facilities - RF Cafe Website

Espresso Engineering Workbook

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Please Support RF Cafe by purchasing my ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

These Are Available for Free

Wireless System Workbook™

Espresso Engineering Workbook™

Smith Chart™ for Excel