QUANTUM BIOLOGY - EXAMPLE 33.4 : (a) According to Landauer (1986), the capacity of human memory is approximately X bits. Assume that a human retains 2 bits / second of visual, verbal, tactile and musical memory, find the value of X if a human lifetime is approximately 2.5 billion seconds. (b) The total power consumption of the human brain is about 25 Watts. The bread of 100 grams will produce 1000 kilojoules of energy. How much bread is needed to run a human brain for 1 day?
Answer Posted / kangchuentat
QUANTUM BIOLOGY - ANSWER 33.4 : (a) Let X = human memory / second x human lifetime, then X = 2 bits / second x 2.5 billion seconds = 5 billion bits. (b) One day has 24 hours or 24 hours x 3600 seconds / hour = 86400 seconds. Let Watt = Joule / second. Total energy consumption of human brain per day = 25 Joules / second x 86400 seconds = 2160000 Joules = A. Energy generation of bread = 1000000 Joules / 100 grams = 10000 Joules / gram = B. Mass of bread needed to run a 25 Watt human brain for 1 day = A / B = 216 grams. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Explain what types of valves are recommended for slurry services?
How can hexavalent chromium be removed from aqueous waste streams?
my qualification is b.tech- industrial biotech. i was read about many chemical engineering subject as a allied like unit operation, chemical thermodynamics, chemical reaction engineering , mass transfer and separation, downstream processing and principle of chemical engineering. and i have 2 yrs working exprience on in the field of instrumentation and control... and my query is "can i able work as process technologist" and which subject i want conc. more?........
What are some factors to consider when trying choosing between a dry screw compressor and an oil-flooded screw compressor?
What types of pneumatic conveying systems are typically used?
How can you prevent bridging in a dilute phase pneumatic conveying system?
Name some common problems associated with dense phase pneumatic conveying?
Hi, This is Naveen, plz if anybody have experience of IOCL interview, send me question.
hi all i have doe cheical engg, but i have to go for iob po interview so can anybody suggest me abt the kind of qns that can be asked.
Difference between Synthetic foaming agents V/S Protien based foaming agent?
How can I evaluate the thermal relief requirements for double block-in of 98% sulfuric acid?
Are you having any experience in antibody designing?
repected sir i have given gate exam today.......... if i ll get the better rank in that ....what is the next process .....shall i give another one test......or wat....i dint get properlly..... plz help me or mail me on Nish_gasti@yahoo.co.in
What are the assumptions made for kynch theory?
How i can calculate heat transfer in reactor at unsteady state and what data should i have? I want equation and process to calculate it? As there is steam or brine in jacket