From a distance, Qin Hongfei glanced at it casually with her eyes, and reminded Qin Yun without turning her head, "Reagent, the one in your hand is mosquito blood, which is used to research and make something for mosquito repellent. Don't touch it, some of the things there are poisonous, I extracted it from poisonous flowers and plants, be careful not to poison yourself, I haven't even researched the antidote." There are fields around here, and when the weather gets hot, there are many mosquitoes that are unavoidable. There is no mosquito coil liquid in this era, and the smell of mosquito coils is too strong, she doesn't like it.

Qin Yun, who had already opened the lid and curiously dipped a little red from the bottle on his index finger, turned green! "Ahhh! Why didn't you say it earlier!" Oh

my!

Such a small bottle is full of mosquito blood?

How many mosquitoes did you kill to extract it!

This is just half a tube.

Also, will I be poisoned if I touch it?

Qin Hongfei found the "toys" and called Qin Fei to help. She looked back at him speechlessly, her bright face expressionless: "I don't blame you for messing with my things, but you blame me?"

Qin Yun thought so too, and said tremblingly, "I'm sorry."

Qin Hongfei said, "I forgive you, it's not very poisonous, at most it may itch or swell, you don't have to be afraid because you have thick skin, but don't touch it next time." These are relatively small toys.

Sometimes she would catch poisonous snakes and other things for research.

Some people do research in a fixed scope, but Qin Hongfei knows more teachers. She has read a little bit of this and that since she was a child. She is very interested in the ocean world of knowledge and has a little bit of everything. She is not an expert! She is not greedy and does not seek to be an expert. She just needs to use it to meet the daily knowledge needs of life.

Qin Yun stared at his index finger and suddenly said, "This... It would be good if it swells. There is a reason not to do homework, right?"

Qin Hongfei didn't want to pay attention to him. She and Qin Fei worked together to move the small things to the empty space on the table. They were all a pile of bulk things. However, it was such a pile of bulk things that was quickly assembled into a finished product in Qin Hongfei's hands.

First, there was a lightweight electronic instrument scanning device.

Then there was a screen with a mess of wires. Qin Hongfei connected all the wires and a simple screen popped up immediately.

The heart rate monitor was an improved version of the heart rate monitor that Qin Hongfei developed, but it was also a little different because it had a multi-functional mode and was also made portable, light and easy to carry.

The parts were also hard to find. Qin Hongfei went to the second-hand market many times to get some parts and finally made it with a few parts himself. He spent a lot of money and his 50,000 savings were almost half gone, but fortunately it was successful.

"What did you call me over for?" The head walked in with a grim look on his face.

"Testing the next new toy." Qin Hongfei's tone was surprisingly gentle, "Is Tang Xiaojin busy? If not, call him over too."

Alas!

It's hard to find mice these days, and you have to take care of their lives.

If it were in the previous life, as long as she needed it, someone could always send her a 'little white mouse' for experimentation, and she could do whatever she wanted with it, and she wouldn't have to worry about it.

When he heard her talk about testing, he said speechlessly and firmly: "Don't even think about it." What