A non-parabolic dish will deliver a signal virtually as good as a true paraboloid if the deviation from the perfect parabolic shape is less than 1/8 of a wavelength. At one GHz, that's a bit under four centimeters.
Back in the Seventies when HBO was being delivered to users via a 2.3 GHz link, a homebrew antenna made from an aluminum "snow saucer" sled and a one-pound coffee can for a feedhorn delivered a better picture than the legitimate units.
rj
Actually, if they are living (or have automated monitors) within a radius of roughly 80 light years, they know we're here. We've been broadcasting our presence via radio waves for about that long now, and our broadcasts are unmistakably "intelligently designed".
In which case, there may be a big sign on the back side of Pluto saying QUARANTINED -- DO NOT ENTER.
Haven't been to the Blue Fox in Tijuana, have we? They used to have vertical slots in the edges of the tables; you'd put a silver dollar in the slot and the young lady would...ummmm...remove it.
Save 150 pounds of airplane weight and you can carry another 150-pound package in the hold -- and UPS will charge the shipper almost $700 to fly it from New York to L.A. overnight.
Not necessarily deficient behavior. Cats have a reputation for "sneaking off to die", but it's more like sneaking off to survive. They have strong recuperative powers and can get over some pretty serious injuries and illnesses -- if a predator doesn't get to them in their weakened state. So when sick or injured they'll go to their favorite hidey-hole for protection.
the thing about biplanes is they need very little speed to stay in the air, due to all the wing area.
Not hardly. A biplane has no more lift-generating capability than a monoplane of the same total area...in fact less, because of interference between the two wings. The primary reason for a biplane is that by adding a few struts and wires, you can easily make a lightweight structure strong enough to carry heavy loads -- and you can do it with simple manufacturing techniques.
A secondary advantage is that a biplane has less overall wingspan than the equivalent monoplane. That means a lower polar moment of inertia in the roll axis which improves maneuverability.
The main disadvantage is that all those struts and wires hanging out in the breeze create something called intersection drag, which goes up rapidly as the airspeed increases. Yes, biplanes generally fly slowly -- because they have to, not because they can.
Oohhh-kay...one cubic decimeter is about 0.016 cubic feet, so one cubic foot of snow weighs about 1000/0.016 = 62500 grams.
Freshly-fallen snow is roughly 1/10 to 1/5 as dense as liquid water, so one cubic foot of snow weighs about 6250 to 12500 grams. At one million crystals per gram, that's -- guess what -- about 0.625 to 1.25 billion crystals per cubic foot.
Who made one cubic foot equal to 1000 grams?
Mother nature. Air is part of her recipe for snow.
I'd be inclined to talk to a chemist and/or a metallurgist about compatibility between the pool chemicals (chlorine, various hypochlorites, carbonates, bisulfates, etc.) and your waterblocks.
I love that meme. Imagine an editorial written in 1936, going like this:
"Germans see Hitler as the benevolent, charismatic leader who will help them up out of the despair of the Depression and into a new age of prosperity and pride in their heritage. Americans see him as potentially destabilizing. Somewhere between the two, you'll find the truth."
Actually it was a room built as a bathroom, completed as a darkroom, and the sink was retired when I went digital; it's back to being a bathroom now. But you're right in principle...when a drain is expected to be idle for long, a drain primer is better than a leak.
The poster I replied to seems to prefer "fuhgeddaboudit" as a solution.
Oh, I just asked my ass and it holds the same opinion.
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A non-parabolic dish will deliver a signal virtually as good as a true paraboloid if the deviation from the perfect parabolic shape is less than 1/8 of a wavelength. At one GHz, that's a bit under four centimeters. Back in the Seventies when HBO was being delivered to users via a 2.3 GHz link, a homebrew antenna made from an aluminum "snow saucer" sled and a one-pound coffee can for a feedhorn delivered a better picture than the legitimate units. rj
It's mostly iron and silicates. The outer 0.00000001 percent of it is mostly water.
rj
In which case, there may be a big sign on the back side of Pluto saying QUARANTINED -- DO NOT ENTER.
rj
Hey, TFA may go deeper into the math, but the generation ship is one of the oldest premises in science fiction.
rj
Experience builds judgment. Poor judgment builds experience.
rj
If you're a sailor, it's the smell of land.
rj
...muzzle loader.
rj
IANAL, but I suspect that having paid a fine once and signed an agreement will set them up for a real penalty if they do it again.
rj
Haven't been to the Blue Fox in Tijuana, have we? They used to have vertical slots in the edges of the tables; you'd put a silver dollar in the slot and the young lady would...ummmm...remove it.
rj
More to the point, why install wireless to save wiring the seats when you have to wire the seats for laptop power anyway?
rj
Save 150 pounds of airplane weight and you can carry another 150-pound package in the hold -- and UPS will charge the shipper almost $700 to fly it from New York to L.A. overnight.
rj
Not necessarily deficient behavior. Cats have a reputation for "sneaking off to die", but it's more like sneaking off to survive. They have strong recuperative powers and can get over some pretty serious injuries and illnesses -- if a predator doesn't get to them in their weakened state. So when sick or injured they'll go to their favorite hidey-hole for protection.
rj
They're the things underneath with wheels on them.
rj
Not hardly. A biplane has no more lift-generating capability than a monoplane of the same total area...in fact less, because of interference between the two wings. The primary reason for a biplane is that by adding a few struts and wires, you can easily make a lightweight structure strong enough to carry heavy loads -- and you can do it with simple manufacturing techniques.
A secondary advantage is that a biplane has less overall wingspan than the equivalent monoplane. That means a lower polar moment of inertia in the roll axis which improves maneuverability.
The main disadvantage is that all those struts and wires hanging out in the breeze create something called intersection drag, which goes up rapidly as the airspeed increases. Yes, biplanes generally fly slowly -- because they have to, not because they can.
rj
rj
Freshly-fallen snow is roughly 1/10 to 1/5 as dense as liquid water, so one cubic foot of snow weighs about 6250 to 12500 grams. At one million crystals per gram, that's -- guess what -- about 0.625 to 1.25 billion crystals per cubic foot.
Who made one cubic foot equal to 1000 grams?
Mother nature. Air is part of her recipe for snow.
rj
...for the Corleone Family to improve its popularity.
[whinny]
Well, no, a pint's 1.04375 pounds the world around.
rj
No way. We had Hormel Potted Meat Food Product. Three times the fat of Underwood Deviled Ham at one-third the price.
rj
I'd be inclined to talk to a chemist and/or a metallurgist about compatibility between the pool chemicals (chlorine, various hypochlorites, carbonates, bisulfates, etc.) and your waterblocks.
rj
Sorry, left a "not" out of that...;-)
rj
rj
I love that meme. Imagine an editorial written in 1936, going like this:
"Germans see Hitler as the benevolent, charismatic leader who will help them up out of the despair of the Depression and into a new age of prosperity and pride in their heritage. Americans see him as potentially destabilizing. Somewhere between the two, you'll find the truth."
rj
Ohhh...kay...
How much would you pay to be cured of cancer?
rj
Actually it was a room built as a bathroom, completed as a darkroom, and the sink was retired when I went digital; it's back to being a bathroom now. But you're right in principle...when a drain is expected to be idle for long, a drain primer is better than a leak.
The poster I replied to seems to prefer "fuhgeddaboudit" as a solution.
Oh, I just asked my ass and it holds the same opinion.
rj