Why We Sleep
Sleep is one of the most important but least understood aspects of our life, wellness, and longevity. Until very recently, science had no answer to the question of why we sleep, or what good it served, or why we suffer such devastating health consequences when we don’t sleep. Compared to the other basic drives in life – eating, drinking, and reproducing – the purpose of sleep remained elusive.
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This dictionary is for checking the spelling and meaning of english words, and has special notes throughout the text to give extra help and guidance on difficult spellings, words that are easily confused with each other, and tricky points of usage. .
The oxford advanced learner’s dictionary is the world’s bestselling advanced level dictionary for learners of english. Now in its 10th edition, the oxford advanced learner’s dictionary, or oald, is your complete guide to learning english vocabulary with definitions that learners can understand
A brief history of time: from the big bang to black holes is a popular-science book on cosmology by english physicist stephen hawking. It was first published in 1988. Hawking wrote the book for readers without prior knowledge of physics and people who are just interested in learning something new.
An authoritative dictionary for students, teachers, translators and general readers includes over 50,000 entries and related phrases and idioms includes over 200 illustrations covers a wide range of scientific and technical vocabulary lists words relevant to the indian subcontinent gives accurate pronunciation in english provides detailed meanings and synonyms in english and tamil includes detailed notes on english grammar, vocabulary and usage
The only thing to fear is loss of ambition. But if you’ve got plenty of that, then you have nothing to fear at all’ – neil degrasse tyson neil degrasse tyson is arguably the most influential, acclaimed scientist on the planet. As director of the hayden planetarium, and host of cosmos and startalk, he has dedicated his life to exploring and explaining the mysteries of the universe. Every year, he receives thousands of letters – from students to prisoners, scientists to priests.
The pocket oxford english dictionary offers over 120,000 words, phrases, and definitions. It covers all the words you need for everyday use, carefully edited from the evidence of the oxford english corpus, a databank of 21st century english, containing over 2 billion words.
If you think the world is coming to an end, think again: people are living longer, healthier, freer, and happier lives, and while our problems are formidable, the solutions lie in the enlightenment ideal of using reason and science. Is the world really falling apart? Is the ideal of progress obsolete? In this elegant assessment of the human condition in the third millennium, cognitive scientist and public intellectual steven pinker urges us to step back from the gory headlines and prophecies of doom, which play to our psychological biases.
The grand design is a popular-science book written by physicists stephen hawking and leonard mlodinow and published by bantam books in 2010. The book examines the history of scientific knowledge about the universe and explains eleven-dimensional m-theory.
What scientific term or concept ought to be more widely known? That is the question john brockman, publisher of the acclaimed science salon edge.org (“the world’s smartest website”—the guardian), presented to 205 of the world’s most influential thinkers from across the intellectual spectrum—award-winning physicists, economists, psychologists, philosophers, novelists, artists, and more. From the origins of the universe to the order of everyday life, this idea is brilliant takes readers on a tour of the bold, exciting, and underappreciated scientific concepts that will enrich every mind.
The compact oxford italian dictionary covers over 90,000 words and phrases, and 120,000 translations of contemporary italian and english. Includes all essential italian and english words, based on findings from the oxford languages tracker
සිතියම් පොතක් යනු නිශ්චිත ප්රදේශයක භූවිෂමතාව දෙනෙත් ඉදිරියේ කැටි කර දක්වන අපූරු නිමැවුමකි. මේ ශ්රී ලංකා සිතියම් පොතින් භූ ලක්ෂණ සිතියම්, දේශගුණික, ආර්ථික ප්රවාහන කලාප දැක්වෙන සිතියම් ඇතුළු සිතියම් කරණයට අදාල සියලු තොරතුරු අන්තර්ගත වේ. ආදර්ශ සිතියම් ද සහිතව ඔප කඩදාසියේ කල්පවතින නිමාවකින් යුක්තව සම්පාදනය කොට තිබේ.