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The following two websites seem to contradict each other.
Source: http://www.babymed.com/getting-pregnant/male-masturbation-fertility-sperm-count
The first source suggests that masturbation decreases a man's fertility, because it advises that a man should conserve the ejaculations for intercourse in order to maintain a higher sperm count.
Source: http://www.mayoclinic.com/health/male-masturbation/AN01189
The second source suggests that masturbation has no effect on a man's fertility or sperm count.The two sources contradict each other, because masturbation can't affect and not affect the fertility at the same time. It has got to be one or the other, not both. Though, it may also be both but under different conditions. Sneazy ( talk) 04:08, 26 August 2013 (UTC)
...(either with a female or solo - it doesn't matter which). Does it matter if it's two males? CambridgeBayWeather ( talk) 04:01, 27 August 2013 (UTC)
What is the pKa1 for the deprotonation of boric acid? Yes, I know what I'm asking - I'm aware of the dominant hydrolysis reaction taking place under aqueous conditions. Plasmic Physics ( talk) 07:53, 26 August 2013 (UTC)
What is the equilibrium constant for:
{{
cite journal}}
: CS1 maint: extra punctuation (
link)
DMacks (
talk) 22:05, 27 August 2013 (UTC)On an old (ca 1915) globe, there is a great circle marked with a double line. It crosses the equator at 18°W and at 162°E, at an angle corresponding to the Earth's axial tilt, and is tangent to the tropics at 72°E (in India) and at 108°W (in the South Pacific). What might be the purpose of this line? 85.226.204.42 ( talk) 08:53, 26 August 2013 (UTC)
Does anyone know exactly why teflates (with OTeF−
5) are such great oxidizing agents (They even oxidize Kr and Xe!)?
Double sharp (
talk) 11:16, 26 August 2013 (UTC)
It seems that there's more and more news about bacterial diseases that are resistant to (almost) all available antibiotics. Are we doomed? Will there always be new antibiotics waiting to be discovered that can treat bacterial diseases, no matter how much the bacteria evolve? It seems that the odds are stacked against humans in this fight, because to be useful any new antibiotics not only need to kill bacteria, they also need to be safe for humans. Will we run out of safe compounds to try? -- 173.49.10.42 ( talk) 11:50, 26 August 2013 (UTC)
I had long thought that Indurain's resting heart rate of 28 bmp was a "one in a million" unusual heart rate for well trained athletes. However, when searching for this in the net, I found that this is apparently not the case, there are many people who claim that they are fit healthy amateur athletes who have resting heart rates below 30 bpm. But then, I have myself a resting heart rate that can range from the low 40s to the high 30s and I know quite a few people with similar heart rates, so in that respect it doesn't seem unusual for people who train a lot harder than me to have heart rates in the high 20s. Count Iblis ( talk) 12:22, 26 August 2013 (UTC)
Suppose, we have all three quantities in the equation "Force = mass x acceleration" constant. Now, if I want to plot the graph of "F" and "a", in which "F" lies on y-axis and "a" lies on x-axis. What type of graph this would be? Concepts of Physics ( talk) 16:31, 26 August 2013 (UTC)
A minor reason often cited as a factor in the closure of Alcatraz prison was that the raw sewage went straight into San Francisco Bay. What happens to it now? The tourist load is heavy and I wager more sewage is generated today than when the prison was operating. Tarcil ( talk) 17:54, 26 August 2013 (UTC)
Hi,
By the article that I've read it's seem that the amount of radiation which hit the ground in some Latitude depends in the Latitude of the place.
I ask why; the Earth's orbit radius around the sun is way more bigger than the Earth radius.
So I would expect that the change in the amount of radiation will be minor around the globe.
Another think, in the true north the radiation direction should be vertical to the ground.
So I would expect that the amount of heat there will be far more less than it is(like Venus).
Exx8 (
talk) 22:22, 26 August 2013 (UTC)
Science desk | ||
---|---|---|
< August 25 | << Jul | August | Sep >> | August 27 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
The following two websites seem to contradict each other.
Source: http://www.babymed.com/getting-pregnant/male-masturbation-fertility-sperm-count
The first source suggests that masturbation decreases a man's fertility, because it advises that a man should conserve the ejaculations for intercourse in order to maintain a higher sperm count.
Source: http://www.mayoclinic.com/health/male-masturbation/AN01189
The second source suggests that masturbation has no effect on a man's fertility or sperm count.The two sources contradict each other, because masturbation can't affect and not affect the fertility at the same time. It has got to be one or the other, not both. Though, it may also be both but under different conditions. Sneazy ( talk) 04:08, 26 August 2013 (UTC)
...(either with a female or solo - it doesn't matter which). Does it matter if it's two males? CambridgeBayWeather ( talk) 04:01, 27 August 2013 (UTC)
What is the pKa1 for the deprotonation of boric acid? Yes, I know what I'm asking - I'm aware of the dominant hydrolysis reaction taking place under aqueous conditions. Plasmic Physics ( talk) 07:53, 26 August 2013 (UTC)
What is the equilibrium constant for:
{{
cite journal}}
: CS1 maint: extra punctuation (
link)
DMacks (
talk) 22:05, 27 August 2013 (UTC)On an old (ca 1915) globe, there is a great circle marked with a double line. It crosses the equator at 18°W and at 162°E, at an angle corresponding to the Earth's axial tilt, and is tangent to the tropics at 72°E (in India) and at 108°W (in the South Pacific). What might be the purpose of this line? 85.226.204.42 ( talk) 08:53, 26 August 2013 (UTC)
Does anyone know exactly why teflates (with OTeF−
5) are such great oxidizing agents (They even oxidize Kr and Xe!)?
Double sharp (
talk) 11:16, 26 August 2013 (UTC)
It seems that there's more and more news about bacterial diseases that are resistant to (almost) all available antibiotics. Are we doomed? Will there always be new antibiotics waiting to be discovered that can treat bacterial diseases, no matter how much the bacteria evolve? It seems that the odds are stacked against humans in this fight, because to be useful any new antibiotics not only need to kill bacteria, they also need to be safe for humans. Will we run out of safe compounds to try? -- 173.49.10.42 ( talk) 11:50, 26 August 2013 (UTC)
I had long thought that Indurain's resting heart rate of 28 bmp was a "one in a million" unusual heart rate for well trained athletes. However, when searching for this in the net, I found that this is apparently not the case, there are many people who claim that they are fit healthy amateur athletes who have resting heart rates below 30 bpm. But then, I have myself a resting heart rate that can range from the low 40s to the high 30s and I know quite a few people with similar heart rates, so in that respect it doesn't seem unusual for people who train a lot harder than me to have heart rates in the high 20s. Count Iblis ( talk) 12:22, 26 August 2013 (UTC)
Suppose, we have all three quantities in the equation "Force = mass x acceleration" constant. Now, if I want to plot the graph of "F" and "a", in which "F" lies on y-axis and "a" lies on x-axis. What type of graph this would be? Concepts of Physics ( talk) 16:31, 26 August 2013 (UTC)
A minor reason often cited as a factor in the closure of Alcatraz prison was that the raw sewage went straight into San Francisco Bay. What happens to it now? The tourist load is heavy and I wager more sewage is generated today than when the prison was operating. Tarcil ( talk) 17:54, 26 August 2013 (UTC)
Hi,
By the article that I've read it's seem that the amount of radiation which hit the ground in some Latitude depends in the Latitude of the place.
I ask why; the Earth's orbit radius around the sun is way more bigger than the Earth radius.
So I would expect that the change in the amount of radiation will be minor around the globe.
Another think, in the true north the radiation direction should be vertical to the ground.
So I would expect that the amount of heat there will be far more less than it is(like Venus).
Exx8 (
talk) 22:22, 26 August 2013 (UTC)