Bacterial patterns invisible to the eye reveal hidden information only with correct biochemical triggers, creating anti-counterfeiting codes that are harder to copy or forge.

Batchelor’s latest book is “Buddha, Socrates and Us: Ethical Living in Uncertain Times.” There he draws on a different ...

Rajeev Dhir is a writer with 10+ years of experience as a journalist with a background in broadcast, print, and digital newsrooms. Vikki Velasquez is a researcher and writer who has managed, ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Dr. JeFreda R. Brown is a financial ...