The mirror spider can rapidly shift a patchwork of minuscule reflective plates underneath its abdomen’s outer surface, altering the pattern of mirrorlike flashes. This uncommon display comes from ...

RSMSSB Grade 4 Syllabus 2026: The Rajasthan Staff Selection Board (RSSB) has released the revised syllabus and exam pattern for the Grade 4 written exam on its official website, rssb.rajasthan.gov.in.

Forbes contributors publish independent expert analyses and insights. Mark Travers writes about the world of psychology. For decades, intelligence has been often reduced to a number — an IQ score, a ...

UP LT Grade Teacher Syllabus 2025: The Uttar Pradesh Public Service Commission (UPPSC) has published 7,466 vacancies for the recruitment of LT Grade Teacher posts. Having a thorough understanding of ...

Photo by Jeff Tome Pictured are bees on hexagonal honeycomb. Often when describing patterns, they are placed in one of two categories: organic or geometric. Organic designs are ones based on natural ...

SSC Stenographer Skill Test 2025: The Staff Selection Commission (SSC) has officially announced the dates for the SSC Stenographer Skill Test 2025. Candidates who qualified in the written examination ...

Abstract: In this paper, we propose a highly accurate and radiometric variation insensitive image matching method for relative geometric calibration of optical multispectral images. First, a large ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...