All posts by Nicholas Gerbis

Eureka! I Have Lost It!

The original keyboard cats.

Left to our own devices and allowed to live without constant fear of death by hunger or violence, we devise some pretty startling stuff.

Sure, some of our better efforts don’t outlast our calamities, or go obsolete before their time or simply never get their chance to shine because no one yet recognizes the need for them. But you can’t keep a good idea down forever, as I explore in this list of …

10 Times Humanity Found the Answer (and Then Forgot)

You Shall Not Pass: Making the Most of Your Passport

A British biometric passport.
A British biometric passport.

The idea of a document that extends protections over subjects as they travel is old — as in, Old Testament old. But the standardized booklet that we now use for establishing identity and citizenship when crossing international borders has only been with us for about a century. More to the point, in the post-9/11 world, it’s become a lot more important.

In this article, I cover the ins and outs of how to get one, when you’ll need one, and what to do if you lose one.  Along the way, I’ll pass along some travel tips, discuss passport alternatives and help you protect your children from  abduction across national borders.

How Passports Work 

After 85 Years, Physicists Confirm Weyl Particle

Photo portrait of Hermann Weyl.
Hermann Weyl. Photo courtesy ETH-Bibliothek Zurich.

In 1928, the equations of British physicist Paul Dirac helped to describe the workings of the subatomic particles known as fermions. Within a year, other theorists – including a contemporary and schoolmate of Einstein’s named Hermann Weyl – had come up with solutions to Dirac’s equations that meant two other, quite odd types of fermions might also exist.

Proving them right would take some time, and Weyl’s quasiparticle assumed a kind of legendary status until 2015, when three separate teams confirmed its existence (my article says two, but a third popped up after I wrote it). Read on to find out more about this “ghost particle” and how it could transform electronics.

Meet Weyl, the Massless Particle That Could Upend Electronics

Blood Will Tell: A Blood Spatter Analysis Update

Eduard Piotrowski of Poland’s University of Krakow published the first major blood spatter study in 1895, but its impact was limited to a few inventive European sleuths like German chemist Paul Jeserich and French forensic scientist Victor Balthazard. The American legal system did not adopt spatter analysis as evidence until the landmark case of State of Ohio v. Samuel Sheppard, and the field did not truly take off until the 1970s, after forensics expert Herbert MacDonell published his influential Flight Characteristics of Human Blood and Stain Patterns.

Blood spatter analysis has undergone major refinements in methods and language since then, including a recent and growing shift toward incorporating computers. I discuss several of these shifts in my 2015 update of Shanna Freeman’s 2007 article:

How Bloodstain Pattern Analysis Works

Press Release: Open SESAME: Proteins Link Cell Metabolism to Genetics, Offer Possible Cancer Target

Researchers have found a new link between a cell’s basic life functions and its genetic operations. The connection involves a protein complex named SESAME, which uses enzymes responsible for glycolysis to activate proteins that regulate genetic material. Glycolysis is the first stage of cellular metabolism, the chain of biochemical reactions by which cells break down food, build proteins and amino acids, and produce energy.

Although their research involved yeast, the authors say the link may hold true in humans. If a SESAME equivalent in humans is found, it could offer insight to enable novel approaches for cancer risk prediction and treatment. Read my full press release at Stowers Institute for Medical Research:

Protein complex links cellular metabolism to gene expression, offers potential therapeutic target