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access to Germany is very hard. The blitz the bombing known as the the blitz began in September 1940. after the nazis failed to beat Britain's Royal air force.

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This is a screen shot from Myon from a book about spies.

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This is a screen shot from Myon from a book about spies.

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This is a Brian pop video about Alan Turing.

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This is a Brian pop video about Alan Turing.

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Come crack top-secret codes with Alan Turing, the Mathematics visionary who conceived of the first computer and helped the Allies win World War II.

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look
surveillance
intelligence
foreign
faraway
courage
exotic
memorize
mission
unique
pressure
binoculars
global
positioning
sophisticated
key-logger
night vision goggles
F.B.

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good and badfi

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https://vimeo.com/48369413
this is a video that I found on wonderopolis but it is only watch able on vimeo

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This is about spies.

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Today we're WONDERing about secret information, and one of our favorite ways to send it is to use writing that can't be seen. Add to the Join the Discussion section below and use the term #appear in your comment if it's one of yours, too!
ATTENTION, SECRET WONDER AGENTS: Today's Wonder, should you choose to explore it, is one of great mystery...and science. Your challenge is to leave a written on a piece of paper in a way that people won't see the , even if they stare right at it.
What do you think? How would you answer the challenge? It can be fun to think like a spy and figure out ways to send secret messages. One way to do this (and answer the challenge) is to use .

When the is exposed to , such as under an or over a candle flame or 100-watt bulb, the acids in the turn a different color and the becomes visible. You can find many -activated inks right inside your kitchen, including clear soda, lemon juice, apple juice, onion juice, milk, soapy water, sugar water, and vinegar.

Another type of is chemically activated. Chemically-activated inks can be made from any two substances that are colorless until mixed with one another. When the receiver adds the second developer, the chemical between both substances causes the color to change and the to appear. Vinegar alone can be -activated, but if you add red cabbage water instead of , it becomes a chemically-activated .

A third kind of is a favorite of amusement parks. Long ago, if you needed to leave an amusement park to go to your car, they would simply your hand. When you returned to the park gate, as long as you had the , you didn't have to pay to come back inside. These stamps were easy to copy and allowed people to sneak in without ever paying for a ticket.

Today, many amusement parks use -activated inks. If you need to leave the park, they will your hand, but you may be surprised when you look down to find nothing is there. When you return to the park, they will ask you to put your hand under a special , and just like magic, a glowing appears.

-activated inks work because they contain substances that glow under different types of , but remain to the naked eye. This means no big, ugly marks on your hand and no more free admission for anyone trying to sneak in. Examples of -activated inks include laundry detergents containing brighteners, soaps, and human .

may not be obvious to the naked eye, but pen scratches and abnormalities on the paper can be signs of its presence. Some inks are easier to develop than others, which means anyone with knowledge of inks may be able to your .

For example, let's imagine you use soapy water to write your . If someone found your paper, they might use , chemicals and ultraviolet . Since soapy water is to each of these, it wouldn't take them long to reveal your top-secret .

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Today we're WONDERing about secret information, and one of our favorite ways to send it is to use writing that can't be seen. Add to the Join the Discussion section below and use the term #appear in your comment if it's one of yours, too!

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why are night vision googles green when you use it? When available light is captured and amplified, it's turned into electronic information that has to be transmitted to the eyes.

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Have you ever seen a show or movie about a spy? If so, you may know spies use special glasses to see in the dark. These tools are called night vision goggles. Today's Wonder of the Day takes a closer look at how they work!

Are you WONDERing whether night vision goggles really work? Yes, they do! In fact, they work very well. On a cloudy, moonless night, the best night vision goggles can help people see over 200 yards away.

First, it's important to understand something about light. Did you know that not all light is ? It's true! The light we can see is called light. It's only a part of the electromagnetic spectrum . There are other types of light that can't be seen by the naked eye. This includes infrared and ultraviolet light.

How do night vision goggles work? That depends on which ones you're using. There are two types of technology used in night vision goggles. They are enhancement and thermal .

enhancement amplifies existing light. This makes images easier to see. Even on the darkest nights, tiny bits of light are present. Some of this light may be infrared light that people can't see. Night vision goggles using enhancement technology collect all the available light. Then, they it so that you can easily see what's going on in the dark.

The other night vision technology is called thermal . Have you ever heard the word "thermal"? If so, you know that this technology has to do with heat.

Hot objects, including human bodies, give off some heat in the form of infrared light. Night vision goggles use thermal technology to that infrared light. This way, you can see an of what's going on in the dark. It's based on the amount of heat being made by objects.

Thermal works well when trying to see people in the dark. It's also better suited for the darkest conditions. Most night vision goggles, however, use enhancement technology .

Night vision technology has many uses for the military and law enforcement. For example, it can be used to find people in the dark. It's also helpful for and surveillance . Night vision can also be used for hunting and watching animals after dark.

Have you ever seen a night vision ? If so, you probably noticed that it had a green glow. Night vision goggles are made with screens that produce green pictures. That's because human eyes are better suited to looking at green pictures for long periods of time.

Have you ever needed to be able to see in the dark? Night vision goggles can definitely help with that problem! They're not just for spies and soldiers. Everyday people use night vision goggles for many purposes. Maybe you'll get to try a pair for yourself one day!

NGSS.PS3.B, NGSS.PS4.B, NGSS.PS4.C, CCRA.L.3, CCRA.L.6, CCRA.R.1, CCRA.R.2, CCRA.R.4, CCRA.R.10, CCRA.SL.1

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Have you ever seen a show or movie about a spy? If so, you may know spies use special glasses to see in the dark. These tools are called night vision goggles. Today's Wonder of the Day takes a closer look at how they work! Are you WONDERing whether night vision goggles really work?

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This is a link to something about wartime spies.

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DK Learning: Make every lesson your best yet

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DK’s uniquely visual approach engages students, enhancing their learning experience

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spies are mostly Important because when other people are doing a private talk with someone else then king send spies to see what they are talking about.

when people are sleeping spies maybe take your stuff to the king and they brake it and you never get it back.

people chose to be spies because they are very good hiders/seekers

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this is a link for "spies"

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Do you ever pretend to be a spy? It can be a lot of fun to sneak around the backyard, gathering intelligence (information that is useful) on beings, such as squirrels and the neighbor's dog!

Being a real spy is not easy, though. It takes a lot of to travel to and places, putting yourself in unknown and potentially-dangerous situations.

Spies need to be smart. For spies to gather valuable intelligence , they have to be intelligent, too! Spies often speak several languages and must be able to lots of information important to the completion of a successful .

Spies also must be creative and able to adapt to situations that change quickly. When faced with a problem, spies must make good decisions under . Part of being prepared for anything includes making sure you have the right gadgets with you on every .

While television shows and movies about spies may make it seem like spies have gadgets that can do just about anything, not all of what you see on television or the movie screen is realistic. Spies can and do use a wide variety of gadgets to make their lives easier, though. Let's take a look at some of the real-life gadgets that spies use.

A lot of spy work involves surveillance . Surveillance is a fancy word that just means watching or closely observing a person or a group of people. To avoid being seen themselves, spies often use fancy gadgets to help them with their surveillance .

For example, to keep an eye on someone from a distance, a spy might use binoculars . Spies might also use high-tech cameras hidden in all sorts of different objects, from pens and buttons to key fobs and ties!

Surveillance doesn't have to be done in person, though. In fact, it doesn't even have to involve seeing. Sometimes spies just listen. A sneaky spy might slip a bug into a telephone to eavesdrop on someone's conversations. An even sneakier spy might use an audio monitoring device hidden in an electric power strip!

Modern spies have to tackle all sorts of sophisticated technology at times. To find information in a computer or to crack a password, for example, a spy might have to use a , which secretly stores all keystrokes entered on a keyboard.

If a spy needs to keep track of someone on the move, a GPS ( Positioning System) tracking device might come in handy. Spies who use GPS trackers can place one on a vehicle and follow its movements with a computer from anywhere in the world.

There are many other types of spy gadgets out there - and probably many we don't even know about! From document scanners to night vision goggles, many of these devices have other legitimate uses beyond spying.

When used by spies, though, their use may technically be illegal in many areas. Of course, spies often work outside the bounds of the law, but remember to always obey the law when you're just pretending to be a spy!

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Do you ever pretend to be a spy? It can be a lot of fun to sneak around the backyard, gathering intelligence (information that is useful) on beings, such as squirrels and the neighbor's dog! Being a real spy is not easy, though.

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war spies are super important because they find out a lot of info about the army like how meny they have.

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spies

I like spies becose of there gagits.

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Sir Franklin Walsingham
Nathan Hale
Juan Pujol
Moe Berg
Klaus Fuchs
Rose Greenhow
Mata Hari
Allen Dulles
J Edgar Hoover
Felix Dzerzhinsky
Stella Rimington
Kim Philby
James Angleton
John Walker

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SPIES

I chose this topic because it looked cool, interesting and fun to read.

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I chose the spy topic because I mostly play cops and robbers with my aunts so I wanted to choose it

My second reason is because I love to spy on my little brother and scare him. (Don't tell him that)

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spies
I chose spies because there gadgets are awsome

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this is a link video about a spy looking at his brother digging a hole in the moon and getting out to the space ship.

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Between 2007 and 2009, the Japan Aerospace Exploration Agency (JAXA) captured more than 600 incredible photos and videos of the moon with an orbiting Selenological and Engineering Explorer (SELENE) mission spacecraft, informally called Kaguya. Named after a lunar princess from Japanese lore, Kaguya had 2.2 megapixel HDTV sensors onboard, giving us some incredible HD firsts from the moon.

Watch two more videos by the Kaguya Spacecraft: Earthset Glare Viewed and Lunar South Pole Earthset Viewed.

The Earth sets in the glare of the sun in this rarely-seen video from the Kaguya lunar orbiter in October 2008.

JAXA's Kaguya spacecraft spies the Earth in the distance as it passes below the south pole of the moon in November 2007. This video is usually presented with the Earth above the moon's horizon, but has been inverted here to show north as up.

For more of JAXA's HD photos from the moon, check out this gallery at Arstechnica.

Next: More moon, more JAXA, and videos that touch on The Overview Effect, including Planet Earth in 4K: Time lapse images taken by an orbiting satellite and The 45th Anniversary of Earthrise.

via The Planetary Society, h/t @m_m_campbell.

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Earthrise from the moon, captured by JAXA Kaguya Spacecraft | The Kid Should See This

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Smart videos for curious minds of all ages: Science, art, nature, animals, space, technology, DIY, food, music, animation, and more! The Kid Should See This is a free video resource for parents, teachers, and kids of all ages. Watch a huge collection of high-quality, kid-friendly, age appropriate, educational videos together at home, during homeschool, or in the classroom.