Chapter 113 Thermometer, a Guiding Light!

Gretel left the largest and most boring daily preparation work to the new pharmacist, and happily plunged into the alchemy room.

The two people were busy back to back. Ringer set up the distillation device and watched the condensed water fall into the container drop by drop. After making sure that he didn't need to keep an eye on it for the time being, he slipped over to see Gretel.

I was startled as soon as I passed by: Gretel squinted his eyes, holding a thin quill pen, and was drawing lines on the long glass tube. The glass tube was fixed on the wooden shelf, vertically downward, with one end hanging in the boiling hot water. The water splashed, and the hot steam hit Grete's face, but he seemed to be unconscious and concentrated on drawing the line.

In the center of the glass tube, a thin bright silver rose straight up. Grete's pen tip landed on the end of the bright silver, pulled it horizontally, and then moved his steps to compare it carefully. After observing for a long time, I finally breathed a sigh of relief:

"nailed it……"

Lin Ge asked curiously. Grete unhooked the glass tube from the shelf, carefully laid it flat, and drew a long line along the wall of the tube. Listening to Lin Ge's question, he looked back happily:

"Make a thermometer!"

"Wen...what?"

"Thermometer!" Grete's eyes sparkled. Oops, it really made his liver bleed. I was stuck in the extremely hot studio, working day and night with the jewelry craftsman - a small place where the jewelry craftsman moonlighted as a glass blower - for seven or eight days!

Isn’t it just a glass pipe? One stick costs less than 10 yuan on Taobao, and ten sticks cost 30 yuan. Shipping is free and shipping insurance is included! As a result, in this different world, he had to do everything by himself!

Heating, stretching, pinching off - just this step alone will destroy countless glass tubes - then heating, welding a short glass tube up, heating and vacuuming, so that it can absorb mercury. Turn it upside down, insert the lower part into the ice water, let it shrink to the bottom, and heat and seal the top...

Fortunately, inhaling mercury was the last step. It was specially placed next door and specially cooled with ice water. If he works a little rougher, the mercury vapor can poison him, believe it or not!

"Thermometer? What does this do?" Ringer was confused. Grete raised a bright smile:

"It indicates the temperature!"

Oops, the body temperature is 37 degrees 5 or 38 degrees 3. Finally, I don’t have to touch it with my hands...

Although a thermometer is not as good as a stethoscope or a sphygmomanometer, it can still be considered a useful gadget in clinical terms! Really, without tools, it will look wrong wherever the disease comes from!

"Well, you see, the mercury in the glass tube expands when it encounters heat, and contracts when it encounters cold. Look, I inserted it into ice water now - does it go down? Then insert it into boiling water , he ascended again.

At different temperatures, the height of mercury is different. We use this principle to indicate temperature. Just hold the lower part and don't move it. After a while, you can see the temperature of your fingers..."

The "useful thing" in Gretel's mind is almost like a small artifact in Ringer's eyes. As he listened to Gretel's explanation, his eyes became brighter and brighter. He held his breath and stretched out his fingertips to pinch the mercury bulb of the thermometer. Grete simply handed him the thermometer:

"Try it yourself, be careful not to put it on the fire or break it. Don't bother me... let me think about how a straight line is divided into 100 parts..."

Gretel muttered and threw himself on the table, scratching his scalp desperately, trying to remember how to draw the tick marks. Murmurs kept coming from behind:

"It expands when it's hot... it shrinks when it's cold... it expands when it's hot... it shrinks when it's cold..."

Hey, uncle, you are very savvy! Thermometer or something, nothing else matters, only the four words "thermal expansion and contraction" are the essence! Gretel smiled secretly and raised his voice:

"Different substances have different boiling temperatures! You can try more. When doing distillation and extraction, use a thermometer to help control the temperature. The efficiency will be higher!"

"Yeah?!"

Lin Ge responded in surprise. Grete ignored him and finished marking the temperature mark, then turned to do the bacterial culture experiment.

The thermometer is not a valuable thing, so as long as you don't smash it, you can play with it as you like. But doing experiments is more important. From time traveling to now, he has accumulated a lot of topics!

Finally, a coolie came to the door. The most tedious tasks of making distilled water, making physiological saline, and making alcohol were thrown away. Hurry up and do experiments!

Gretel hummed and arranged a stack of petri dishes on the table and put down the culture medium. Half of the petri dish was filled with aspic, and the other half was filled with agar - thank God, he finally bought Gelidium...

Next, spread out a row of gauze, a ceramic spoon, a scalpel, and a piece of wood used as a tongue depressor, wash your hands, and place your left hand face up on the table——

"One, two, three! Magic trick - clean!"

The light of magic trick shines continuously on all materials.

Grete rubbed all the experimental materials, including the fingers of his left hand, on the two culture media.

Next, take the same high-temperature sterilized material and rub it over both media as well. Finally, wash your hands, disinfect them with alcohol, dry them, and carefully apply the culture medium.

"Let me think about what I'm missing... By the way, purifying diet! Water creation!"

Use the sewage treated by the purified diet and the purified water generated by the water production technology to complete bacterial culture. Grete labeled each petri dish and wrote down the source of the sample and the culture time. After doing this, he finally breathed a sigh of relief and returned to the study to start writing the paper:

""On the sterilizing effect of mage tricks, purifying diet, and water creation"... Well, let me think about it, should I go back to the mage tower and add the water in the water element pool for comparison..."

boom! ! !

There was a sudden explosion outside the door. Gretel's hand trembled, and a large drop of ink fell on the paper, immediately staining the paper:

"What happened?"

Don't let the alchemy room have a problem! The still is still there! One cannot walk away! There is also a sterilization room downstairs. The pressure cooker must not explode...

He rushed out desperately. In the lounge opposite, Priest Donald also rushed out with a book in his arms. There was a series of footsteps on the stairs. Alvin, Joanna, and Patrick who were reading in the consulting room, together with Little John sitting at the front desk, rushed up:

"What's the matter?"

"What happened?!"

"Little Gretel, are you okay?"

"I'm fine!" Gretel shouted back. He followed the sound and rushed into the alchemy room opposite, and saw the new Lin Ge lying on the window with half of his body leaning out of the window. Hearing Grete's footsteps, he tremblingly raised his black right hand, tears streaming down his face, crying and laughing:

"I broke through! - I broke through! I finally broke through to a level 1 mage. Wuwuwuwuwu..."

So it was you who did it just now? Grete rushed to his side and looked down. The smell of gunpowder smoke has not yet dissipated in the air. Opposite the alchemy room and below, there is a black burn mark on the roof of the bungalow, which has obviously been burned by the flames. Gretel swayed on his feet and quickly took two steps back, summoning the strong wind to blow away the smell:

"Linge! Even if you break through, don't blow up the toilet!!!"

Thanks to x-on:book friend 20210420150519849 for the reward of 3000 starting coins

Thanks to x-on:Origami and Zzheart for the 100 starting coins.

After checking the information, I found out that making a thermometer is very difficult... so difficult... Finally, I changed my plan and asked the protagonist to find a jeweler to make it instead of letting him make it himself. And I would like to lament that modern industry has really reduced costs so low.

Please collect, recommend, book reviews... please vote for me...