In most churches, the decorations are red to symbolize the blood of martyrdom. Some churches remove all decorations on Good Friday, veiling anything that can’t be removed in black or purple. Holy ...

Germany’s transition to quantum-secure ID cards will occur in two stages. First, personal data will be protected from forgery ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Child: The ancient Egyptian civilisation began 5,000 years ago and lasted 3,000 years! It was located along the River Nile in north-east Africa. I better write this down! Oh! I’ve lost my pen. Ancient ...

The Neewer PL60C is a powerful yet relatively portable flat-panel LED. By being both an RGB and a bi-color LED, it ticks two ...

Quantum computing is reshaping the foundation of digital security and the transition to post-quantum cryptography is no ...

Abstract: Although intelligent vehicles have been widely used, the assurance of their safety remains challenging, as evidenced by the high rate of disengagement and traffic accidents. Before the ...

The price of coal, for its part, has a strong and highly significant negative effect (elasticity = −0.75, p < 0.001). This ...