The star Mira was unpredictably variable. Sometimes it was blazing, brilliant and hot. Other times it was oddly dim, cool, shedding little warmth on its many planets. Gresth Gkae, leader of the Mirans, was seeking a better star, one to which his "people" could migrate. That star had to be steady, reliable, with a good planetary system. And in his astronomical searching, he found Sol.With hundreds of ships, each larger than whole Terrestrial spaceports, and traveling faster than the speed of light, the Mirans set out to move in to Solar regions and take over...

John Wesley Powell was a pioneer American explorer, ethnologist, and geologist in the 19th Century. In 1869 he set out to explore the Colorado and the Grand Canyon. He gathered nine men, four boats and food for ten months and set out from Green River, Wyoming, on May 24. Passing through dangerous rapids, the group passed down the Green River to its confluence with the Colorado River (then also known as the Grand River upriver from the junction), near present-day Moab, Utah. The expedition’s route...

A sky pirate armed with superior weapons of his own invention... First contact with an alien race dangerous enough to threaten the safety of two planets... The arrival of an unseen dark sun whose attendant marauders aimed at the very end of civilization in this Solar System. These were the three challenges that tested the skill and minds of the brilliant team of scientist-astronauts Arcot, Wade, and Morey. Their initial adventures are a classic of science-fiction which first brought the name of their author, John W. Campbell, into prominence as a master of the inventive imagination.

As Earth's faster-than-light spaceship hung in the void between galaxies, Arcot, Wade, Morey and Fuller could see below them, like a vast shining horizon, the mass of stars that formed their own island universe. Morey worked a moment with his slide rule, then said, "We made good time! Twenty-nine light years in ten seconds! Yet you had it on at only half power...." Arcot pushed the control lever all the way to full power. The ship filled with the strain of flowing energy, and sparks snapped in the air of the control room as they raced at an inconceivable speed through the darkness of intergalactic space...

The famous scientific trio of Arcot, Wade and Morey, challenged by the most ruthless aliens in all the universes, blasted off on an intergalactic search for defenses against the invaders of Earth and all her allies. World after world was visited, secret after secret unleashed, and turned to mighty weapons of intense force--and still the Thessian enemy seemed to grow in power and ferocity. Mighty battles between huge space armadas were but skirmishes in the galactic war, as the invincible aliens savagely advanced and the Earth team hurled bolt after bolt of pure ravening energy--until it appeared that the universe itself might end in one final flare of furious torrential power....

John Woodhouse Audubon , son of the famous painter John James Audubon and an artist in his own right, joined Col. Henry Webb's California Company expedition in 1849. From New Orleans the expedition sailed to the Rio Grande; it headed west overland through northern Mexico and through Arizona to San Diego, California. Cholera and outlaws decimated the group. Many of them turned back, including the leader. Audubon assumed command of those remaining and they pushed on to California, although he was forced to abandon his paints and canvases in the desert…...

Puerto Rico was acquired by the United States in 1898 following the Spanish-American War. This volume was written in 1903 as Book XII in the series “The World and Its Peoples.” The series was intended for young people, but this work would be fun listening for those of any age interested in what Puerto Rico was like in the early 20th century. Intended to familiarize people in the U.S. with their new territory, topics include the island’s people, geography, climate, flora, fauna, and schools. There is also some coverage of Puerto Rican history and the new government established under U.S. rule.

In this Journal, Joseph Banks records almost daily observations of the journey of the ship the Endeavour on the first of James Cook’s voyages to the Pacific during the years 1768-1771. There are also more detailed accounts of the events, people, flora, fauna and geology of the places where they landed. They landed at Brazil, Tahiti, New Zealand, Australia, Batavia, Cape Town and St. Helena. Joseph Banks was one of the naturalists on the Endeavour, appointed by the Royal Society. The joint Royal Society, Royal Navy journey of the Endeavour was overtly a scientific expedition with the stated purpose of observing the transit of Venus from Tahiti...

Originally published in the May, 1960 issue of Amazing Science Fiction Stories. Jack Odin has returned to the world of Opal, the world inside our own world, only to find it in ruins. Many of his friends are gone, the world is flooded, and the woman he swore to protect has been taken by Grim Hagen to the stars. Jack must save her, but the difficulties are great and his allies are few.

Joseph Lister was born near London in 1827. He studied medicine at the University of London and pursued a career as a surgeon in Scotland. He became professor of Surgery in Glasgow and later (1877) at Kings College Hospital, in London. Lister’s contribution to the advancement of surgery cannot be overestimated. Before his work on antisepsis, wounds were often left open to heal, leading to long recoveries, unsightly scarring, and not infrequently amputation or death due to infection. Lister’s work enabled more wounds to be closed primarily with sutures, drastically reducing healing time, scarring, amputations, and deaths due to infection...

The eighteenth, nineteenth and early twentieth centuries were periods of stark contrast between the opulent lifestyle of the rich and the extreme poverty of the peasants throughout the world. In addition, Russia straddled eastern and western cultures, not fitting neatly into either. The church was an important force, and those adhering to traditional eastern religions were peaceful and accustomed to 'doing as they were told'; followers of western thought were more eager for a democratic society. Add an autocratic czar and the conditions were ripe for revolution, corruption and murder...

Joseph Priestley, FRS (13 March 1733 (O.S.) – 6 February 1804) was an 18th-century English theologian, Dissenting clergyman, natural philosopher, chemist, educator, and political theorist who published over 150 works. In “Experiments and Observations on Different Kinds of Air,” he reviews experiments with gases. A common theme in this work is measuring the volumes of gases held in glass tubes, and their increase or decrease when exposed to other substances. He also tests the effects of gases on mice, plants and insects...