Tuesday, May 31, 2011

आवोगाद्रोज़ नम्बर, बिल ब्राइसन और एक फ़ुटनोट


बिल ब्राइसन की किताब 'अ शॉर्ट हिस्ट्री ऑफ नियरली ऐवरी थिंग' का लुत्फ़ किसी चस्के की तरह लूटने में लगा हूँ. आप के वास्ते एक फुट नोट. और एक सलाह कि अगर आपका कोई परिचित/बच्चा विज्ञान से घबराता है तो उसे इस किताब को पढ़ने को अवश्य कहें. -

... The principle led to the much later adoption of Avogadro's number, a basic unit of measure in chemistry, which was named for Avogadro long after his death. It is the number of molecules found in 2.016 grams of hydrogen gas (or an equal volume of any other gas). Its value is placed at 6.0221367 x 1023, which is an enormously large number. Chemistry students have long amused themselves by computing just how large a number it is, so I can report that it is equivalent to the number of popcorn kernels needed to cover the United States to a depth of nine miles, or cupfuls of water in the Pacific Ocean, or soft drink cans that would, evenly stacked, cover the Earth to a depth of 200 miles. An equivalent number of American pennies would be enough to make every person on Earth a dollar trillionaire. It is a big number ...

किताब की पीडीएफ़ फ़्री में यहां से डाउनलोड कर सकते हैं - A Short History of Nearly Everything

2 comments:

प्रवीण पाण्डेय said...

बड़ा रोचक लग रहा है अंकों का संसार।

abcd said...

adbhut !
adbhut aur naayaab !!
adbhut aur durlabh !!!

its a treat to read this document.