Evolution is usually understood as a change in biological organisms over an extended period of time.

Presents information about the Jews who resisted and fought the Nazis and the heroic gentiles who provided them with false identities, hiding places, and documentation, allowing them to escape persecution.

The Jewish faith is an ancient religion filled with a remarkable history, meaningful rituals, and a mandate from God to do good in the world. Although small in number, Jews have influenced events in world history for almost four thousand years. The religion's beginnings are discussed along with core beliefs, common practices, and challenges for the future.

The Vietnam War cost the lives of more than 50,000 US soldiers, and sparked major unrest at home in an ultimately unsuccessful attempt to keep North and South Vietnam from being united under a Communist regime. Through thoughtful narrative supported by fully documented quotes this title begins with A Brief History of the Vietnam War and then examines these questions: How Did Fear of Communism Lead to US Intervention in Vietnam? How Did the Tet Offensive...

3D printing is revolutionizing health care. 3D printers are now used to make low-cost prostheses, replace diseased organs, produce new pharmaceuticals, and create models to guide surgeons through difficult operations. This cutting-edge technology has the potential to make health care more affordable, more personalized, and more available to people around the world

"COVID-19 was declared a pandemic in March, 2020, when nearly 120,000 cases were reported in over 110 countries. By that time scientists were already working frantically to develop a vaccine to combat the disease. By the summer of 2020, COVID-19 cases had surpassed 20 million, and more than 735,000 people had died. The search for a COVID-19 vaccine was a race against time versus an insidious virus that knew no boundaries and left few people untouched."...