Why not at 12 hrs, or 24 hrs, 48 hrs etc.  Does the growth rates reach a maximum at 16 hrs?
210713
Usually at this point the culture is well established, and dilutions will then be made and the optical density of the dilutions can be figured out, which determines the growth rate.  After 24 hours cells start to die off b/c of lack of nutrients.  After 48 hours, the culture will still be viable but not the best source of robust growth.  16 hours is pretty arbitrary I guess, but it usually represents an overnight incubation, ie incubate at 5pm, come back at 9am.
530634
1-4 hours.\n\nYou have to allow yourself at least 30 minutes if you want to be able to get it up again :P \n\nAny longer than 4 hours and the affect may wear off.  Any shorter than an hour and you may risk 'not performing'.
596477
No it wont stop growth. It will provide you with greater control and increased sensation when you climax.\n\nYou can do anything to excess, but you should be fine - and enjoy the benefits!
468147
don't really know if this will help or not :                                                                                                    http://www.netdoctor.co.uk/ate/health/growth_metabolism/600231.shtml
561867
I substituted a 12-Step Program.  Regarding "better effects", there is NO comparison (for me) - - Wouldn't trade today's 'effects' for the world...One Day At A Time, 10 years later...Amen. :)
293099
Maybe for another 2 years. After that, you reach the mature level where you can't grow anymore. Women tend to grow bigger than men at age 12 to 14. Then men starts to grow. I don't think you are too tall for your age. I think it's normal.
137926
This is completely normal. I would explore this to it's fullest potential and add a few more people to the mix as time progresses. Who knows where things could go.
659776
probably between 16- 23 per hour
583253
about 12-20 days at the most or less
452867
2 hours\n\nedit: WHY would it be more than 3 hours??? if the brickie does it alone it would be 3 hours max. why say 4.5 hours?? :(
198237
There's no time limit,just when you are ready to move forward and feel comfortable doing it! Life is short,so go out and enjoy it!!!!
48572
It's just so the time between cutting the roots is not a variable.  There's nothing special about noon and midnight except that she want to ensure that everyone in the class cuts the roots of the onions every twelve hours exactly.  If she had everyone cut them at, say, 11am and 11pm it would have the same effect.\n\nAlso, most plants respond to periods of light and dark and maintain some form of circadian (can't believe I spelled that right) rhythm, so the time of day could have an effect on the way the plants respond.  It's not that there's anything special about noon and midnight (they're just times we decided to start counting from), but having the times standardized avoids the effects of time of day on the experiment.\n\nIt seems to me that it's not so cool that she's making you stay up till midnight, though - I'd be pretty annoyed if any of my profs told me I had to do something at 12am, and my classes don't start till 9 :-P
2334
you have a limit ofanswers per day depending on your level
113494
No. Never.\n\nThe average age, while increasing will hit a maximum for a variety of reasons.\n\nGeneral wear and tear. We can cure and prolong disease but even with the most advance techniques we cannot replace plain worm out parts. \n\nEven if this could be done in the future, it would pose a bit of a problem.  POopulation overgrowth. Where woould peopel live? What would they do? How would they eat?  It is not like your boss would die or retire, if immortal there would be food shortages, job and economic issues, etc.\n\nThe current focus is about improving the quality of life of the years we DO have and making them more enjoyable.
40325
In the army we always started our logs @ 0000 and closed them out at 2400. so i'm not sure where your getting your info. the time 24:00:00 does, after all, only exist for one second and then becomes 00:00:01
181185
because there is only 24hours a day and its easer to put 12 then 24 numbers plus 12 is half of 24 \nand there  are some watches i know that have 24 numbers instead of 12 you can buy one if u feel better with 12numbers
216289
Actually, your teacher is wrong.  It all depends on the growth phase of the bacterial culture.   There are 3 phases in the growth of a bacterial culture; the lag phase, the log phase, and the stationary phase.  The lag phase is exactly what it describes...the bacteria divide veeeeerrrryyy slowly.  In simple terms, this is mainly due to low amounts of certain "growth signals".  It usually takes bacteria several hours to get out of lag phase and into log phase.  \n\nLog phase is the stage where the bacteria are dividing at a constant rate.  This is when you're going to take measurements for the growth rate.  Say, for example, that your cells have a doubling time of 1hr.  So if your beginning OD is 0.8 your end OD after an hour would be 1.6.  In this case B is twice b.  However using the same example, if we grow for 2 hours instead of 1, you've gone thorugh 2 doubling times and the final OD would be 3.2 verses 0.8 (B is 4x b).  So the relation between b and B is strictly dependant on the time (which is why "t" is a component of the equation) and growth rate of the cells.\n\nThe final phase of bacterial growth is the stationary phase.  This is where the number of bacteria increases to such a high density that further division is inhibited (by physical limitations such as nutrients, pH, cell/cell inhibition, etc) and the growth substatially slows.\n\nI hope this clearly answers your question.