منابع مشابه
Ancestors of the "Archives".
In Europe and America specialist physicians, national societies, and journals devoted exclusively to the medical care of children were well established by the end of the last century. In Britain a few physicians would give an opinion on a sick child while retaining their interest in the medicine of the adult. In 1896 an attempt was made to start an AngloAmerican journal of children's diseases t...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
The Freeman Ideas on Liberty
O n average, Federal Reserve chairmen come and go at about the same rate as U.S. presidents. Dating from the creation of this country's central bank (1913), we have seen sixteen presidents (Wilson to Bush) and fourteen Federal Reserve Chairmen (Hamlin to Bernanke). The Fed Chairmanship, however, has seen more variation in years of service—Franklin D. Roosevelt notwithstanding. Spanning four pre...
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عصر روشنگری زمان شکل گیری ایده های مدرن تربیتی- آموزشی بود اما تاکید بیش از اندازه ی دوشاخه مهم فلسفی زمان یعنی عقل گرایی و حس گرایی بر دقت و وضوح، انسان عصر روشنگری را نسبت به دیگر تواناییهایش نابینا کرده و موجب به وجود آمدن افرادی تک بعدی شد که افتخارعقلانیتشان، تاکید شان بر تجربه فردی، به مبارزه طلبیدن منطق نیاکانشان وافسون زدایی شان از دنیا وتمام آنچه با حواس پنجگانه قابل درک نبوده و یا در ...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1921
ISSN: 0036-8733
DOI: 10.1038/scientificamerican03011921-247supp