"Chenghui Wu Qianlu 100 yuan, welcome to visit next time!"

In the supermarket, the sweet-sounding clerk squinted and smiled at Bi Fang, who was packing the bag, and Bi Fang nodded and rushed out with two big bags.

The special monitoring equipment was not enough, and Bi Fang needed to make a batch of homemade, so he went to the supermarket to buy a large amount of milk, vinegar, and some snacks.

Something seems to be wrong?

If Bi Fang was live streaming at this time, there would definitely be a large number of live broadcast viewers complaining like this, because what Bi Fang bought was too normal.

Are you sure you're not here to buy groceries?

Except for the milk, which doesn't look like it can be drunk during the tour, the rest, a bottle of vinegar, well, maybe the old party likes to eat sour, and the rest of it, potato chips, happy water, biscuits, jelly......

Anyone who sees these goods will not feel that they can make anything special, and it is completely a necessary survival material for a fat house.

It turns out that behind the wilderness hunk is actually a happy otaku!?

Of course not.

Bi Fang poured all the things he bought on the hotel sofa, took out a small basin, opened the milk lid, and poured all the milk into it.

He really only went to the supermarket for two things, milk and vinegar.

Cameras are everywhere – always assume you've been filmed.

The rest of the snacks are all designed to cover up the existence of these two things, so as not to appear too purposeful and suspicious.

Of course, milk and vinegar are not thought of by ordinary people, but caution is the best, in the eyes of people like Bi Fang, they are the best materials for making camouflage tools.

A small amount of foam floated from the milky milk, and Bi Fang poured almost a liter of milk into the container.

Tapping the chopsticks along the edge of the container to break up the foam, Bi Fang brought it into the microwave oven in the room, flipped through the microwave oven's power meter, and adjusted the time to five minutes to start heating.

The high-end hotel suites are also fully equipped with furniture and appliances, and some even have private kitchens.

Five minutes later, Bi Fang brought out the steaming, but unboiled milk, on which a thin layer of "milk skin" had curdled up.

Opening the vinegar bottle, Bi Fang took a stainless steel spoon and added eight spoonfuls of vinegar to the container full of milk, while puncturing the milk skin and stirring constantly.

When mixing is complete, a large amount of flocculent sediment wraps around the handle of the spoon.

Scoop up the sediment, the handle of the spoon is level with the line of sight, and Bi Fang pinched the flocculent, sticky and continuous.

Very good.

That's what Bi Fang wants.

To hide valuable data, keys, or surveillance devices such as cameras and microphones, all you need is two common ingredients in the kitchen: milk and vinegar.

When heated and filtered, the casein in the milk solidifies into a gelatinous, plastic-like substance, a mixture that can be shaped into any shape and dried to a clay-like consistency.

This ever-changing substance can be shaped, colored, and mimicked the shape of rocks, bricks, logs, or anything else, making it the go-to point of intelligence for camouflage valuables or surveillance equipment in specific environments.

The only thing to note is that during the heating of the milk, it should not be allowed to boil, so that the result is not filament, but flocculent.

The isolation of DNA proteins in high school organisms is essentially the same method.

Bi Fang took out a spare short-sleeved sleeve, covered it under the container, and poured it into the sink, straining out the filamentous mixture.

In practice, 500 grams and one pound of milk can make an egg-sized "milk plastic ball", which can hide a miniature camera.

It's not enough to have a camouflage, you also need a camera and a microphone.

These are also difficult to do.

When he was on a mission, he thought that he might not be able to bring too much equipment, so he asked Richard and others to buy quite a few baby monitors.

Any computer city, large supermarkets will have it, and it only needs a simple modification to become a hidden camera.

Bi Fang only needs the parts inside, and the big shell is thrown away.

He removed the components — the transmitter, the battery pack and the camera lens — but didn't cut the wires that connected the components.

A toothpick is then inserted into the camera lens, and the "special plastic" that has just been obtained is glued to the lens, and the "plastic" around the lens is pinched into the shape of a rock.

When the toothpick is removed, the original position of the toothpick can leave an imperceptible pinhole, and the camera can monitor through the small hole.

Bi Fang poured out some vinegar, mixed an appropriate amount of milk and stirred, and the color soon turned brownish-gray, which is the "pigment" of dyeing.

Paint the rocks in a neutral color or depict a special texture of the landscape outside the target house, place the transmitter and battery pack in a waterproof sealed bag, and finally attach the "rocks".

When the time comes, the following part can be buried in the soil, it does not need to be too deep, too deep will cause the signal to fail, and finally set up the camera so that it can capture the desired picture.

In order to ensure that the camera's "angle of view" is properly positioned, Bi Fang did not remove the toothpick until the last minute and used the angle of the toothpick to measure the field of view.

The probability of such a shot being found is very small.

Even if it is discovered, disassembled, and exposed wires, in the eyes of ordinary people, it is nothing more than a waste product, buried by the wind and sun.

During installation, the spray glue can also be sprayed on the rock lens, and the soil collected on site can be covered on the rock lens as another layer of camouflage, which is almost foolproof.

A microphone is also required.

It is relatively simple to conceal a voice-activated recording device in the target room or car, but without amplification equipment, it is unlikely that effective intelligence can be obtained.

A complete monitoring system requires a microphone to amplify the sound.

In the absence of specialized tools, mobile phones, audio jacks, and headphones can also be converted into effective monitors.

The difference between the two is extremely simple, they do the opposite.

Bi Fang dismantled the earphones purchased at the cheap grocery store, revealing two conspicuous wires, a red positive wire and a black negative wire.

The function of the device can be changed by simply switching the polarity of the two wires.

A microphone is essentially the same instrument as a speaker, and any speaker—from earbuds on headphones to a stereo system in a TV—can be turned into a microphone in just a few minutes.

A loudspeaker converts an electrical signal into sound, and a microphone converts sound into an electronic signal that can be processed and amplified.

Bi Fang cut off the output of the speaker wire, connected it to the audio jack, and plugged the audio jack into the camera equipment he had just made.

All small recording devices essentially work this way, but there are two additional points to a phone that will be muted and set to auto-answer.

That is, you can intercept intelligence in real time without having to risk returning to the target location to retrieve the equipment.

The applicability of this bugging installation technique is strong.

It's a pity that Bi Fang doesn't have too many mobile phones.

Bi Fang also taught Richard and others this trick, and asked them to install one on their cars, so as not to be sneaked in when the time came.

Simply deactivate one of the vehicle's rear speakers and plug its wires into a tape recorder or telephone to assemble a vehicle monitoring device.

In public places, they can also be hung in the pocket of their coat and dangled around, and the earbuds can be used as a covert intelligence detection station.

The sound, picture, and camouflage are all there, but in just an hour, Bi Fang has once again made a batch of monitoring equipment that can be used.

He put on his backpack and had to do his work today.

Night.

Bi Fang, Mandy, and Keko came to Dolphin Bay again.

Although following Bi Fang's instructions, the two have changed hotels, but this is still difficult for Bi Fang, and it is even simpler, because this time the hotel has a balcony, no longer a glass curtain wall.

Just under the watchful eyes of the guard, Bi Fang brought the two out.

Perhaps because of the proximity to the dolphin season, there are a lot more people in Dolphin Bay tonight.

Large firewood has also been piled up on the beach, and it looks like a grand bonfire will be formed tomorrow night.

The mission cycle is much longer than Bi Fang imagined, surveying the terrain, making plans, and patiently observing.

"There were two teams of people in the tunnel just now, do you see?" Bi Fang turned his head and asked Mandy and Keko.

The two nodded, signaling that they had seen it too, and that it was a very bad sign.

As soon as the two teams got off the mountain, they ran up the mountain, shaking their flashlights incessantly, and they moved very quickly.

They want to get started as soon as possible.

Richard told Bi Fang that when they first came to Ben, they had also met the same group of people, and they would take a closer look at the broken branches.

Usually only when there are dolphins in Dolphin Bay, they will go up the mountain to check on them, just to see if anyone is following them.

Bi Fang had already encountered dolphins last night, and everything meant inevitable.

The center of gravity of Dolphin Bay is its right side, and the three of them put their equipment on the left side of Dolphin Bay last night, which is easier to go to sea and observe.

Today, Bifang has placed most of the equipment in a tree with a wide field of vision, and the observation point is higher, with an unobstructed view from top to bottom.

Mandy wears an infrared camera on his head, also in case someone suddenly appears.

Not only that, but they also have professional underwater divers who are responsible for underwater investigations and carpet searches underwater, and Bi Fang doesn't want them to discover those equipment.

Underwater sound detectors, underwater cameras, underwater infrared cameras, these are the results of their efforts to stay overnight, Bi Fang and Richard want to understand everything that happens here, and they want to have a three-dimensional experience in all directions.

They wanted to hear every sound the dolphins made and every word the fishermen said, not just to reveal the carnage, but to record something that would change people's hearts.

Last weekend, the humpback whale's long and sad wail echoed in London's Trafall Square, and the great sadness was like a gushing out, and the icy water overflowed the square and covered everyone.

Thousands of demonstrators demanded an end to the killing of cetaceans.

In the sixties of the twentieth century, the IWC sat idly by and watched the slaughter of cetaceans.

Until the appearance of a man - Roger Payne.

It's not a character out of an anime, a real hero.

He launched the cetacean rescue campaign by exposing the animals' songs to the world, and the impact was terrifying.

Anyone who has ever heard the mournful cry of a whale can deeply feel the sadness contained in it, which is as turbulent as a volcanic eruption.

Now that the demonstrations have resumed, the participants are determined to change the situation, because the number of cetaceans slaughtered has risen again and a new leader must take over.

Roger Payne is in his seventies, and people like him.

Handful.

Tonight is destined to be a difficult night.

"Take this." Bi Fang handed each of them a note with a series of numbers on it.

"What is this?"

"The phone number of the Huaxia Embassy, save it, keep the note by your side, if you encounter danger, or catch it, contact me, the second is to contact this number."

"Oh no, we have ugly ......"

"Trust me, take it, it's more trustworthy, just in case, remember to stuff your phone in your sock, and besides, I asked each of you to prepare more than two phones, ready?" He folded the paper in half and stuffed it into the collars of the two men.

These are all to prevent trouble, once they are caught, they will definitely be searched, and a mobile phone is placed in the open place, which is used for them to "find out".

The other one is hidden closely, so you must prepare more than two.

Sometimes simple hiding doesn't work, and the best hiding is to make the enemy think that they have achieved their goal.

The sound of the east hitting the west, adjusting the tiger away from the mountain, the meaning is almost the same.

"Oh well, hopefully I won't be using it one day." The two of them accepted the note very honestly.

After doing all this, the trio turned and entered the forest, completely ignoring the no-entry signs.

It's a pity that Bi Fang is not good at learning, so he only thinks that the yellow sign reads.

"Welcome to Taiji."

......

In the early hours of the morning, the three of them evaded the searching mountain people, but just as they were about to walk down the mountain, suddenly, the bright light of lightning flashed Keko's eyes.

Fortunately, Bi Fang's eyes were quick, and he pulled Keko back, hiding his figure with his back against the tree.

"Anyone? Who's there? ”

As if sensing the anomaly, the mountain people shouted.

Keko swallowed, his heart pounding, his temples swelling violently.

"It's over, I didn't see it." Mandy licked her lips and whispered.

The moment the mountain people ran out, he happened to look away, and the infrared line of sight did not shine at all.

Bi Fang squatted down, picked up a stone from the ground, weighed it, and slammed it into the other side.

The stones streaked across the field of vision, making a sound that quickly attracted the attention of the mountain people, and the flashlight quickly disappeared with the shouting and shouting.

"Are you gone?"

Keko swallowed his saliva, his forehead already wet with sweat, and his whole body felt as if he had been fished out of water.

The villagers who patrol here, each with a firewood knife at their waist, if they are caught, it is self-evident what they will face.

After about five or six minutes, Fang Fang nodded: "It should be gone." ”

Just when the three of them thought it was all over and came to the foot of the mountain.

Richard and others in the hotel were suddenly attacked.

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