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Volume 2 Smile Through Time and Space Chapter 7 Tritium Tube

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    What is half-life?

    Half-Life is a game developed by a fat guy with a binary brain.

    The half-life is the time required for half of the nucleus of a radioactive element to decay. Judging the historical age based on the half-life of the radioactive isotope carbon-14 is a common research method in archaeology¡ªas long as the decay content of the radioactive element is measured, it can be known that the target object has  how old.

    It sounds quite tall, and it seems to have nothing to do with the daily life of ordinary people. It has nothing to do with Bai Yang, an ordinary high school student. We ordinary people live in peace and contentment. What can it have to do with radioactive isotopes?  What could it have to do with half-life?

    Yes, please raise your left hand.

    Roll up your sleeves.

    Look at the dial of your watch in the dark - if you're an old gentleman and own a vintage luminous watch, the dial has a common radioactive isotope painted on it.

    Tritium.

    Bai Yang couldn't sleep anymore, so he immediately got up from the bed, took out his phone and opened Taobao.

    With the help of the omnipotent Taobao, there is nothing that cannot be bought.

    Tritium tube!

    Tritium tube is a common luminous tube, made of fully enclosed glass, the small one is a few millimeters long, and the big one is one or two centimeters.  The gas is weakly radioactive, which stimulates phosphors to emit light. This thing is often used on luminous watches, military compasses, and the front sight of firearms. Sometimes it is also used as a buoy indicator light by fishermen who have never been in the air force.

    The half-life of tritium is twelve years, that is to say, half of a lump of tritium will die after twelve years, and the brightness of a tritium tube will decrease by half after twelve years, and it will be nearly extinguished after twenty years.

    The time is just right!

    Just use a tritium tube as a time standard.

    Bai Yang planned to buy two brand new tritium tubes on Taobao, and then went to Xianyu to find a five-year-old tritium tube and a ten-year-old tritium tube, two new and two old¡ªbut because none of them arrived  The half-life period, so the four tritium tubes are still glowing, and the naked eye can't actually see much difference.

    Here's what he planned:

    Glue the four tritium tubes in a transparent plastic box with UV glue, and arrange them in the order of new, five years, ten years, and new. When BG4MSR digs out the time capsule, Bai Yang will let her find the time inside the capsule  Marker, and asked her to answer the glow of the tritium tubes - if the four tritium tubes are glowing normally, the same as when they were buried, it means that the other party is talking nonsense.

    What doomsday and 2040 are bullshit.

    If the four tritium tubes barely glow in the dark, it proves that the girl is telling the truth, and at least twenty years have indeed passed.

    If the five-year or ten-year tritium tube goes out, but the new tritium tube is still glowing, it proves that BG4MSR is indeed living in the future, but she miscalculated her age.

    Bai Yang thinks that there is no more solid and tenable ironclad evidence than this. This is the so-called breaking tricks with force, grasping the essence, pointing directly to the avenue, and not playing so many twists and turns, even if the opponent is James Bond.  De, it's 007, the flying thief. There are ten thousand ways to secretly dig out the underground time capsule to see what's hidden in it, and then bury it back as it is without anyone noticing, but the luminous effect of the tritium tube cannot be changed.

    And as long as I don't disclose in advance that it is a time marker, and that it is a tritium tube, it is impossible for the other party to know what it is, and it is even more impossible to lie to myself.

    Verifying with a force beyond the reach of human beings will eliminate all falsehoods and lies.

    This is Bai Yang's method.

    I buried the tritium tube here, come on!

    I'm not afraid of you using any means, whatever you want to toss about, as long as you open the cover and read it, I will definitely know whether what you said is true or false.

    Place an order!

    Thirty yuan for one, and sixty yuan for two.

    It's going to hurt for a while again.

    But Bai Yang is eager to try. As a high school student who has studied step by step since he was a child, he rarely has the opportunity to do such a bold, absurd, and deviant thing, but Bai Yang is getting more and more excited.  Breaking into a different color, in novels and movies, this is often the opening of a grand adventure, this guy didn¡¯t fall asleep until three o¡¯clock in the morning, his mind was full of his own plans, and the result was that the next day  Overslept in the morning.

    ¡¤ ¡¤

    ¡¤ ¡¤

    ¡¤ ¡¤

    Ban Xia put down her headphones and microphone, and slowly lay down on the desk.

    What did he mean by that?

    Can you provide evidence for me?  help?? Proof that this year is 2040?

    But didn't he claim to live in 2019?

    How can a person who lived twenty years ago help me?

    The girl's cheek was pressed against the cold wooden tabletop, her right elbow rested on the table, and the amulet was hung on the index finger, shaking gently like a pendulum - it was a coin left by her teacher, with a hole pierced through the coin  The red string can be hung around the neck at ordinary times, and Ban Xia's eyes follow the coin and shake it back and forth, puzzled.

    The fat little plastic table lamp is placed next to Banxia's head, which is the only light source in the room. The girl's face is illuminated by the light, while her body sits in the dark. She likes to sit in the dark and think, quietly  The night can calm her mind enough.

    How is he going to give evidence to me over a period of twenty years?

    Bury it?  hide?  Then wait for twenty years?

    Ban Xia easily thought of this, the other party lived twenty years ago¡ªlet¡¯s assume that he really lived twenty years ago (Actually, Ban Xia didn¡¯t believe it, but she had no choice), then he lived in that era  Dig a hole, bury the things he wants to send in the soil, and then notify yourself through the radio station to let yourself dig it out.

    If you can find it yourself, it will prove that all this is true.

    He will know she lives in 2040.

    She was also able to confirm that he lived in 2019.

    It sounds beautiful.

    Ban Xia stared at the red rope and the coin hanging on her finger. The coin gradually lost its kinetic energy in the friction, and the swing became smaller and smaller. Finally, it stopped and slowly rotated around the hanging rope as the axis.  Twisted into a double helix.

    This sounds reasonable, but the teacher once said that it sounds different from what it looks like, and it looks different from what it does. To judge whether something is feasible, it is not enough to rely on ears.  , eyes, hands and brain are all mobilized.

    The girl's brows slowly frowned, she was faintly worried.

    If the other party really wants to do this¡ª¡ªreally want to purposely send something to him over a long period of twenty years, then this may not be a simple matter.

    Once you have a goal, obstacles will naturally follow. This world always allows you to reach the end you don't want to go inadvertently, and at the same time sets up many obstacles in front of the goal you want to go.

    It's definitely¡ªabsolutely¡ªnot as easy as you think it is.
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