DAVID POGUE: The military made only one uranium bomb, because separating rare U-235 from the more common U-238, which doesn't work in fission reactions, is a very difficult process. Dude, you just caught a shark with your bare hands! Then, flip the shark upside down, which induces a trance state called "tonic immobility." Once the shark is calm, we test its reaction to a piece of ordinary, non-magnetic lead
If you can remain aloft using aerodynamic lift, you are not in space If you can get there using the buoyancy of a lightweight gas, you are not in space For reference: (and sorry to the rest of the world who prefer to think in Metric units. Hence, I shall use feet, conforming to the most widely used international convention.) 1,000-5,000 feet: Standard operating altitude for most general aviation aircraft 10,000 feet: Above this altitude, supplemental oxygen becomes a concern for unpressurized aircraft
NARRATOR: The magnetic field from the track induces a current in the superconducting puck, which, in turn, creates an opposite magnetic field that makes the puck levitate. They can obtain, at that store, foods that are from almost anywhere in the world, that have been transported and kept cool, and then they can keep them in their own home
The Energy Story - Chapter 3: Resistance and Static Electricity
Around 600 BCE (Before the Common Era) Greeks noticed a strange effect: When rubbing "elektron" against a piece of fur, the amber would start attracting particles of dust, feathers and straw. Glass, however, when rubbed with silk, acquired what he termed "vitreous electricity." He thought that electricity repeled the same kind and attracts the opposite kind of electricity
Questions Index
Thru my experimenting, I learned that you can make just as much HHO using 3 plates, as you can using 9 plates; the difference is it just takes more amperage using fewer plates. Answer What is the best way to know when the alternator is being over worked? Answer Explain Neutrals! Answer What is going on in my cell? I am frustrated
The Japanese mechanic that I took it to charged it with something in a large tank without evacuating it and said I could buy it at the auto parts store but they seem to have many options. Perhaps in the future, Before more cheap, easy and harmful products become widely available, someone will take a longer and harder look at the outcomes of using them
BAD PHYSICS: Misconceptions spread by K-6 Grade School Textbooks
(In fact, a bathtub full of air weighs about a half kilogram, but we cannot easily demonstrate this weight while living in an atmosphere.) It's hard to teach the weight of water to the fishes, and hard to teach the weight of air to human grade-schoolers. When you want to change the focusing power of your eye, you apply "contact lenses" to the cornea surface, or you undergo surgery which re-sculpts the cornea's curvature
Learn more Where Loon has been Project Loon began in June 2013 with an experimental pilot in New Zealand, where a small group of Project Loon pioneers tested Loon technology. Project Loon is a network of balloons traveling on the edge of space, designed to connect people in rural and remote areas, help fill coverage gaps, and bring people back online after disasters
The starboard side of A-deck, however, proved a lot more difficult to escape from, for a few reasons: First, the wind was blowing the fire and smoke to starboard. He was probably in error in attributing the gas leak to the sharp turn up to the mast, because clearly the increasing tail heaviness was in evidence many minutes before that turn
Why does wet cold air feel so much colder than dry cold air? - Physics - Science Forums
Wet air is denser, and more molecules come in contact with your skin than less dense, non-humid air, hence the perception of temperature is more intense.Moist air is less dense that dry air. Imersed in wet air (a better conductor) your surface attains a temperature nearer that of its surroundings than it would surrounded by dry air (a poorer conductor)
Make Hydrogen Gas - Clean Burning, Inexpensive, Lighter than Air!
Hydrogen is a highly esteemed alternative fuel candidate because its combustion with atmospheric oxygen results in only clean water vapor, rather than carbon compounds as is the case with most other fuels. as always!harry883 years agoReplyI have found a diagram that was on hooloovoo33s instructable thanks hooloovoo33 it demonstrates my description with bottle instead p.s
Nevertheless, a scale model was duly carved from polystyrene foam, its centre of pressure estimated, and the model set up in a wind-tunnel at Imperial College. Recommend 37 Report Permalink HugoEckner Aug 1st 2010 23:25 GMT Hi folks, Great article, but I would not hold your breath waiting for a vacuum filled carbon fiber tubes airship any time soon
Why are there no green stars? - Bad Astronomy : Bad Astronomy
The answer is that photosynthesis does not depend on the total amount of light energy but on the energy per photon and the number of photons that make up the light. If you use a traditional camera, with a roll of film, the white balancing is non-existent, and a film for outdoor use will produce ugly yellow pictures indoors, and a shot that includes indoors and outdoors at the same time will fail miserably either inside or out
kritikl If the US government wants to solve the problem of cleaning up the environment and make US the green state, make the eco system more farm productive so as to promote good quality air and water as a result of boosting the hydrogen fuel cell technology, then it should embrace and support hydrogen fuel cell cars by giving larger tax credits on a sliding scale from 1 to 5 years with the highest tax credit in the first year because prices of Hydrogen fuel cell cars are likely to go down if there is a demand in buying and selling the vehicle in the first three years for both new and used cars. The First Law of Thermodynamics prevents any more energy being produced by burning the hydrogen in air (reaction with oxygen) than what was used to produce the hydrogen from water in the first place
Q: Where does the term "Blimp" come from? A: The popular story is that during World War II, a military general visited one of the many airship stations operated by the U.S. Q: Why do Airships Fly? A: Why airships fly is explained by the Principle of Archimedes: "Bodies submerged into a fluid receive from it a lifting force which is equal to the mass of the displaced fluid." (This is the same principle that explains why boats float on water.) The airship is filled with a lifting gas (Hydrogen, Helium, hot air or natural gas)
Lifting Power of Helium and Hydrogen and Rigid Airship Operations
2) While methane is a tried and true way to power your engines and generators, it is expensive, wasteful, and down-right dirty when you compare it with my own system. Reply Mike Dinsdale November 7, 2012 at 2:37 am In the design of the Trimorphic Disc Sail the issue of the expansion of the lifting gas be it helium or hydrogen is compensated for by the expansion of twelve segmented gas ballonets interconnected by hoses and small valves within a ring mesh array able to expand
For more detailed information on design and construction -- Stay tuned! NOTE: For any type of experimental fire balloon, it is not a good idea to rely too much on an outside heat source. This provides "negative draft," which helps to reduce the de-stabilizing effects of "billowing." "H-Frames" are made by tying three balsa wood sticks together with string
Scientists do not fill the balloon to capacity for strategic reasons: as a balloon rises into the atmosphere, the pressure around the balloon decreases. That person should mail the radiosonde back to a reconditioning center where scientists read the data, repair any damages and reuse the radiosonde for a future flight
Solar Hot Air Balloon Message-in-a-Bottle
have you ever wondered why it is that government people when they harm a non government person gets off the hook on a technicality when it is clear they are guilty? the exception to this rule is if they government person is televised red handed in the act. Once the surface of the bag cools below the dewpoint for that humidity, those same X grams will drop out of vapor form into liquid water on the inside of the bag
How to Become a Hot Air Balloon Pilot - Balloon Flight Training
You will be expected to assist in handling equipment weighing several hundred pounds, be able to withstand hard landings (yours not mine), and working outdoors in temperature extremes. We are pay as you go, so there is no requirement to put down a large sum at once, however; if you have to take breaks in training, for any reason, it will ultimately cost you more
No comments:
Post a Comment