A solar powered radio is a portable radio receiver powered by photovoltaic panels. It is primarily used in remote areas where access to power sources is limited.
- 1 Do you need matches on the Moon?
- 2 What would you need to survive on the Moon?
- 3 What planet can humans live on?
- 4 Can we live without the Moon?
- 5 How long can you survive on the Moon without a suit?
- 6 Do astronauts drink milk?
Do you need matches on the Moon?
DIY Solar Powered Radio
Magnetic compass ‘The Moon has no global magnetic field, which makes a magnetic compass virtually useless.’ 15. Box of matches ‘ Matches are virtually useless on the Moon because there is little oxygen.’
What would you need to survive on the Moon?
When astronauts live and work on the Moon, they will need access to life-sustaining oxygen, water and other resources. On the Moon, and eventually Mars, they could collect local resources on the surface and transform them into breathable air; water for drinking, hygiene, and farming; rocket propellants and more.
Is survival on the Moon possible?
Although you might think it would be cool, humans could not live on the moon! (Maybe one day in the future) The moon has almost no atmosphere, so there’s no air for us to breathe. There is no water on the moon either, and we need to drink water to survive.
What is parachute silk used for?
6 The attributes of fluidity, softness and lightness that made silk and rayon suitable for parachute use also made them suitable for underwear, blouses and wedding dresses. Parachute fabrics were much in demand for wedding dresses, as white was common and much yardage was desirable.
What happens if you lit a lighter in space?
What the fire will look like – NASA Astronauts have intentionally sparked small, controlled fires in space before, but nothing bigger than a candle or match-size flame. A three-foot-long controlled flame in zero gravity is the biggest NASA has ever attempted. Fire behaves differently in space than it does here on Earth.
- If you light a match on Earth, the flame is long and pointy because hot gases rise upward from the flame, keeping it straight and sticking up.
- But in space, buoyancy does not exist — so the flames spread out in all directions.
- NASA scientists know space fires can be erratic, but they don’t fully understand the properties and mechanics.
That’s because — up until now — experiments like this have been extremely dangerous. They’ve also (luckily!) never sparked such a large fire on a spacecraft to learn from. Read more about NASA’s Saffire-I experiment here, and watch NASA’s footage of the Cygnus spacecraft detaching from the ISS on June 14: Julia Calderone contributed to this post.
Can fire burn on Moon?
MIT School of Engineering | » How does a match burn in a spacecraft? In a little ball, and very slowly By Sarah Jensen When women of the Northern Qi Dynasty created the first rudimentary matches of pine sticks and sulfur in order to heat their homes and cook, they weren’t concerned with how their invention would operate outside of their villages.
- It would be another 1,384 years before the first human traveled in space — plenty of time to consider how flames might behave there.
- Igniting a match happens much the same way it did in 577 AD, whether in Northern Qi, Indiana, or inside the International Space Station, says Aaron Johnson, a PhD candidate in aeronautics and astronautics and the Man Vehicle Laboratory.
The ingredients necessary for ignition are oxygen, fuel, and heat. “Oxygen is in the atmosphere, and the fuel is the wooden stick and the sulfur and oxidizing agents in the match head,” he says. “The heat is provided by friction created when the match is struck against a surface.” Once the match is lit, however, combustion in the space station will work a little differently because of the way hot air moves in microgravity.
- Gravity exists inside a spacecraft, but nothing on board — astronauts and candles included — can feel its effect,” explains Johnson.) On earthbound birthday cakes and old-fashioned Christmas trees, hot air is created around a lit candle wick, and because it is less dense than cold air, it rises.
- Through the process of convection, air currents draw the flame upward, creating its familiar teardrop shape.
Simultaneously, cold air is pulled into the void at the wick through diffusion, supplying the flame with the oxygen it needs to burn. In zero or microgravity, although a flame’s heat is less dense than cold air, it doesn’t rise. Without the air molecules moving about, the flame takes the shape of a sphere — and will burn for quite a long time.
Diffusion is slower than convection in microgravity, so the rate of combustion is slower than on the Earth’s surface,” says Johnson. “In space, less oxygen is required for a flame to sustain, and it will burn longer because oxygen is being consumed more slowly.” Lighting matches in a spacecraft may not seem like the brightest thing to do in light of the many as-yet-unanswered questions about how materials burn, but that’s exactly why NASA is engaged in flammability experiments.
Since 2009, its Flame Extinguishment Experiment (FLEX) on board the International Space Station has explored the behavior of fire in microgravity. “By studying candles and flames in space, we can learn how combustion works in various conditions,” says Johnson.
We know that a traditional fire extinguisher in space introduces air currents that only feed the fire and speed up the combustion process, and these studies will help us design better fire extinguishers for use in spacecraft.” Environments outside the spacecraft present their own challenges to creating a cozy fire.
“On Mars, for example, the atmosphere is mostly carbon dioxide,” says Johnson. “The fuel and oxidizer in a match head would cause the tip to burn, but not for long because of lack of oxygen.” And in the moon’s complete lack of atmosphere, a match cannot ignite at all — explanation enough for why Neil Armstrong didn’t celebrate his step onto the lunar surface with a candlelight dinner.
What planet can humans live on?
Life in Our Solar System? Meet the Neighbors – Among the stunning variety of worlds in our solar system, only Earth is known to host life. But other moons and planets show signs of potential habitability. more
What’s the human population on the Moon?
What is the population of the moon? The current population (human) of the moon is zero. In nineteen sixty-nine and the early nineteen seventies the population of the moon was two. Joel Comstock sr. } LIVE Points 333 Rating Help make Alexa smarter and share your knowledge with the world : What is the population of the moon?
Can we live without the Moon?
A boon for life – As Earth spins, it wobbles slightly on its axis. On some worlds orbiting other stars, this causes extreme seasonal changes. The gravitational pull of the moon moderates Earth’s wobble, keeping the climate stable. That’s a boon for life.
- Without it, we could have enormous climate mood swings over billions of years, with different areas getting extraordinarily hot and then plunging into long ice ages.
- We might even have the Moon itself to thank for life on Earth.
- As the moon orbits, its gravity tugs on the side of Earth closest to it more than the side that’s farther away, sloshing the seas back and forth.
We call this sloshing the tides. Today, tides are good for surfers and sea creatures, but in the past they might just have provided the spark needed to turn the primordial soup – a collection of simple, precursor chemicals – into complex life. Four billion years ago, about the time life began, the moon was probably about half as far from Earth as it is now, huge tides would ebb and flow every few hours.
- According to Richard Lathe’s tide theory of life, these tides created the conditions under which double stranded DNA molecules replicated with each tidal cycle.
- This may have created the molecular foundations for the first lifeforms to emerge.
- This theory is fairly speculative, however, and only one of a number suggested for the origin of life.
Even if tides aren’t responsible for the emergence of life, they certainly make life on Earth far more diverse. Along the coast, distinctive habitats have necessitated unique adaptations. It’s here you’ll find intertidal spiders, like this one named after Bob Marley or sea stars that like nothing more than prying open a mussel, ejecting their own stomach into the hapless mollusc and feasting on the digested mess later.
Do magnetic compasses work on the Moon?
Q&A (Published 1988)
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Credit. The New York Times Archives See the article in its original context from August 30, 1988, Section C, Page 8 TimesMachine is an exclusive benefit for home delivery and digital subscribers. This is a digitized version of an article from The Times’s print archive, before the start of online publication in 1996.
- To preserve these articles as they originally appeared, The Times does not alter, edit or update them.
- Occasionally the digitization process introduces transcription errors or other problems; we are continuing to work to improve these archived versions.Q.
- Does a compass work on the Moon? A Theoretically, yes, but ”you wouldn’t want to depend on getting back home using it,” said John W.
Dietrich, curator of lunar samples at the Johnson Space Center, Houston. On Earth, a compass needle points to the North Magnetic pole. But on the Moon, Mr. Dietrich said, ”there is no magnetic field that would be detectable by your average Earth compass.” There is general agreement that the Moon once had a magnetic field, he said, but while this paleomagnetism is being studied, ”based on only a few samples of lunar rock, we can’t say much beyond that.” On the Moon, a compass needle ”would point at whatever direction happened to be indicated by the remnant magnetism in the surface rocks,” if it were strong enough to be detected.
”We don’t know what kind of a distribution of magnetism we have” on the Moon, he said, ”because the Moon hasn’t been explored to that extent.” ”The theory that is generally accepted,” he said, is that the Earth’s field is generated by the central part of Earth’s core rotating faster or slower than the rest of the Earth.
”We infer that on the Moon, that condition no longer exists. The core that’s there now does not run faster or slower than the outer part of Moon. It could be molten, and running at the same speed, but we don’t know.” Q. Can you get a suntan through glass? A.
- It depends on the kind of glass, but ordinary window glass does not allow the short ultraviolet rays that tan and burn to go through it very easily.
- In fact, this ”borosilicate glass, or crown glass, is an effective screen for rays below 350 nanometers, or billionths of a meter, in wavelength,” according to Dr.
Raj Roy, associate professor of physics at the Georgia Institute of Technology, who specializes in optics. ”There are other kinds of glass, such as quartz glass, that do allow the shorter wavelengths to go through,” he said, ”but it is much more expensive to make.” : Q&A (Published 1988)
How long can you survive on the Moon without a suit?
How long humans could survive in space without a spacesuit Following is a transcript of the video. Narrator: What would happen if you went to space without a spacesuit? Whatever you do, don’t hold your breath! The vacuum of space will pull the air from your body.
So if there’s air left in your lungs, they will rupture. Oxygen in the rest of your body will also expand. You’ll balloon up to twice your normal size, but you won’t explode. Your skin is elastic enough to hold you together. Any exposed liquid on your body will begin to vaporize. So the surfaces of your tongue and eyes will boil.
Without air in your lungs, blood will stop sending oxygen to your brain. You’ll pass out after about 15 seconds.90 seconds after exposure, you’ll die from asphyxiation. It’s also very cold in space. You’ll eventually freeze solid. Depending on where you are in space, this will take 12-26 hours, but if you’re close to a star, you’ll be burnt to a crisp instead.
- Either way, your body will remain that way for a long time.
- Gut bacteria will start to eat you from the inside out, but not for long, so you will decompose very slowly.
- You could be floating in space, unchanged, for millions of years.
- Who knows, maybe an advanced alien race will discover you! EDITOR’S NOTE: This video was originally published in May 2017.
: How long humans could survive in space without a spacesuit
Can you live on Pluto?
Potential for Life – The surface of Pluto is extremely cold, so it seems unlikely that life could exist there. At such cold temperatures, water, which is vital for life as we know it, is essentially rock-like. Pluto’s interior is warmer, however, and some think there could even be an ocean deep inside.
Do astronauts drink milk?
Do astronauts drink milk in space? Space is the final frontier, as limitless opportunities abound in the infinite universe. Although humanity has still only set foot on the moon, efforts are underway to go much more farther than what the present generation could have ever imagined.
Living in space would be an essential part of such journeys, which brings to the mind lots of questions about the lifestyle of astronauts, especially what do they drink and eat. For milk lovers, the first question would probably be whether astronauts drink milk in space. Moreover, what type of milk it is – organic full cream milk, healthy double toned milk, best full cream milk, or any other type? Let’s take a look at the facts and find the answers to such questions.
As per NASA, one of the world’s leading space agencies, food for astronauts in space has undergone a sea change over the decades. While earlier, food was mainly available as refrigerated cubes and semi-liquids held in tubes, now there’s a dedicated section where food can be prepared/reconstituted, served on attachable trays and eaten with the standardknife and fork.
- Astronauts are even provided the opportunity to decide their own menu and what they would like to eat on specific days.
- And yes, dairy products are there in the list of food items that are available to astronauts in space.
- These are all available as refrigerated foods, which can be brought to ambient temperature using specialized equipment.
Dairy products in space do include milk, but not in the liquid form as one might have on planet earth. Milk isavailable in powder form and can be reconstituted in the dedicated preparation and dining area. Since it is in powder form, it really doesn’t matter whether it’s organic full cream milk, healthy double toned milk, best full cream milk, or any other type of milk.
- What does matter is that ‘dairy products in space’ says a lot about their high nutritive value.
- Space foods are strictly prepared to ensure that they have the right level of nutrients that can provide each astronaut with all the Recommended Dietary Allowances (RDA) of vitamins and minerals.
- If dairy products were not nutritious, they would never have made it to the space menu of astronauts.
If dairy products can travel so far in space and provide nourishment to astronauts, it is proof that milk and milk products are good for health. It provides all the more reasons to those living on earth to continue their intake of dairy products such as organic full cream milk, healthy double toned milk, best full cream milk, etc.