Is there a bicycle powered water pump available? A simple way to keep
the basement dry when the power goes off, if so.
I can't find any. It ought to be simple though.
A regular bike rider can easily put out 250w for hours, which ought
to keep ahead of a flood with lots of room for breaks.
It's more fruitful than bike riding, and people do that for hours; going for 100
mile rides both Saturday and Sunday, for instnace.
Look at the motivation when the water's gaining on you.
Some people are home most of the time, and there's a fine water alarm in the sump
The thing about human powered is that it outlasts the power outage easily, and
gives you something to do in the dark. No fumes, no stale gasoline running out,
no dead batteries.
It's not as if you'd have to do it continuously, just when the alarm tells you the
water has risen again; then pump it dry again. There's lots of water storage under
the floor before the well is full again.
Consider the horsepower it takes to lift a given volume of water a given
height in a given time. A man isn't good for much, bicycle or no. This
was well known to the 19th century navies of the world wrt bilge pumps and
to firefighting before the era of portable steam engines.
Reminds me of a friend who thought we would fly on bicycles some day, it
was just a matter of improving the mechanical efficiency. That he couldn't
run up a few flights of stairs without being exhausted didn't seem to be a
Likewise those who think the country can be run by sunbeams. There's only
700 watts/sq meter of sunlight falling on the surface of the earth. At the
equator. At noon. With no clouds. The ONLY way to increase that number is to
move the orbit of the earth closer to the sun.
10 sq meters of a mirror or 10 sq meters of photovolactic cells. Same area.
If you do all the computations, you'll find that a solar collector farm the
size of the Los Angeles basin (1200 sq miles) would be sufficient to power
California. All the people remaining in Los Angeles would, unfortunately, be
in the dark.
Not that there's anything wrong with that.
You missed my point...A lens or curved mirror in space which was a few
times larger in diameter than the earth would be ANOTHER way to
"increase that number".....
It was a joke, son....ergo the <G> I added.
Jeff Wisnia (W1BSV + Brass Rat '57 EE)
"As long as there are final exams, there will be prayer in public
There *have* been a few flights of such aircraft already, you know.
Not as far-fetched as it might seem, actually.
Electricity consumption in the United States is on the order of 4
trillion KwH annually. There are somewhat over 4000 hours of daylight in
a year (12 hr/day avg. * 365 days), so supplying this demand would
require the generation of roughly one billion Kw per hour of daylight.
Now suppose that 100 watts/sq meter of the incident sunlight could
actually be converted to electricity, on a year-round average. A big
supposition, perhaps, but bear with me.
To generate one billion Kw (one trillion watts) at 100 watts/sq meter
requires a collector array with an area of 10 billion square meters.
That's actually not as big as it sounds like at first, just square 100 Km
on a side.
The total land area of the United States is approximately 9 *trillion*
square meters; thus, a collector array comprising only about one tenth of
one percent of the nation's land area could be sufficient to supply all
of its electricity needs.
I don't think so.... human-powered aircraft won't work very well on Mars,
where the atmosphere is too thin to provide much lift.
And of course aircraft of any type won't work *at*all* on the Moon, where
there is *no* atmosphere. DUH!
Not likely, I admit -- but such machines *do* exist, and it's perhaps a bit
presumptive to suppose that we've already explored and exploited the limits of
such technology. It's still less than a century since heavier-than-air flight
was "known" to be impossible. :-)
I think I missed something. Bicycle powered sump pump incase of power
failure. So the power goes out and the alarm goes off, so you run down
stairs and pedal your but off. Hey !! wait a minute . The power went off
,whats powering the alarm. Maybe you could rig up some kind of generator
powered by one of those hampster wheeles to power the alarm.
Of course if my grocery store and drug store and all the other stores
down town and in malls weren't FULLY LIT with 6 tube fluorescents on
24x7 and if houses didn't have a standing draw of 1kw or more even when
everything is "off" (see wall warts, fast-on TVs, computers that turn on
from a keyboard button push, etc, etc),
then maybe we'd pull a tad less power.
Working at a giant data center and wth billions of desktops, I'd love to
start to see computers come out for new users that weren't necessarily
FASTER (do we really need 3GHz desktops?), but more efficient.
We hire people and give them 600-1GHz desktops, but it's just 2002 tech.
The cost of a CRT vs. an LCD is equal when you count the costs of AC and
the extra power over a couple years.
Having worked on trading floors, money/square foot savings are also huge.
Stick a WattsUP meter on your TVs and other appliances and see what it
costs for them to be "off" for a month.
Hell, throw 4 PV panels on your roof with an 800 watt inverter, it will
reduce your power bill and pay for itself in around 8 years at the outside.
I think you are joking. This is just too funny........
Of course, if you are serious, why the bike? Just lay on your back in
the water and blow real hard thru the pipe. this forcing the water up
the pipe. Be sure to stop to breath.....
On a more practical note, have you ever heard of a gas powered
generator? They also make battery powered sump pumps that use a 12
volt car or marine battery.
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