History Of Science

One thousand years ago, when the United States of America did not exist and Oxford and Cambridge were backwaters of ignorance, the light of human reason shone brightly in places like Tunis, Cairo, and Baghdad. During the Abbasid caliphate for much of the 8th through middle 11th centuries, and also sporadically thereafter, tolerance of certain non-Muslim groups was enshrined in law.
He shared some of his favorite memories from the mission.
The second shuttle disaster changed the landscape for America's space agency.
The notorious study was referenced in a recent episode of "Black-ish."
Forget about the static little ladder you heard about in biology class. DNA wiggles like crazy and keeps changing its shape.
What distinguishes an outrageous idea from a reasonable one? And how are these different from a true or a false idea? I suspect that many people confuse reasonable/outrageous with true/false, which can make it difficult to understand sometimes counterintuitive scientific findings.
Sad fact: bad communication kills great ideas. So, in theory, you can have the greatest idea in the world. But if you can't communicate in a clear, concise, and compelling manner? You can forget about it.
5. Magnifying glass/glasses 2. The toothbrush 3. Marching bands The first modern hospital with nurses and a training centre