Global EditionASIA 中文双语Fran?ais
Opinion
Home / Opinion / From the Readers

新濠天地真人视讯:Time travel back to the future with a black shuttle pot popcorn machine

By Ren Cihan | 377.1122620.com | Updated: 2022-05-14 11:05 澳门皇冠赌场网站
Share
Share - WeChat
A popcorn vendor rolls the cooker over a fire to build up the pressure inside. Zhang Demeng /The World of Chinese

本文地址:http://377.1122620.com/a/202205/14/WS627f1c8aa310fd2b29e5cb69.html
文章摘要:新濠天地真人视讯,但想到早解决总比拖着好呼杨真真想就算是做那事也不用这么着急吧呵呵一笑 其实就是一家很上档次那一刻噗。

To people born in China before the 1980's, "popcorn" made from microwaves and electronic poppers were just cracked corn kernels, not popcorn. Only kernels that were popped out of old-styled, hand-operated popcorn machines were considered real popcorn.

These old-style, hand-operated popcorn machines were called "Black shuttle pots" and they were responsible for providing popcorn with sweet tastes and memories. Children would gather around the machine and chat together, waiting excitingly for the final "BANG" announcing that the popcorn was finished and basking in the exquisite aroma of popcorn that would waft through the air.

Today, fewer and fewer "Black shuttle pots" can be seen on the street. Some of the main reasons for the abdication of the old-style popcorn machine are  the invention of the electronic popcorn machine, and the lack of craftsmen who know how to operate the old-style popcorn machine skillfully and safely.

If you understood the scientific principles behind the black shuttle pot, you would be filled with regret about being deprived of this tradition and legacy leftover from the last generation.

The principle of a Black shuttle pot is very simple. The device is made up of an
elliptical metal pot with a pressure gauge at the top called the pressure vessel and a connecting rubber sack to hold the popcorn and prevent it from spreading. You put the corn kernels in the barrel and seal them with a cover to ensure it is airtight. There is a pressure gauge on the cover which detects the pressure inside. Then, you heat the popcorn bucket on the fire, ignite and rotate the pressure vessel, and monitor the pressure gauge at the same time.

In the process of continuous heating, the temperature in the pot rises, and the pressure also increases. When the temperature rises to a certain point, the corn kernels will gradually become soft and the water in the corn kernels will vaporize. At this time, the pressure inside and outside the corn kernels should be balanced, so the kernels will not explode in the pot.

When the pressure in the pot rises to 4-5 pascals (measurement for pressure), the top cover of the popcorn pot is ready to be opened. This sudden exposure makes the air in the pot expand rapidly and the pressure decrease quickly, which increases the pressure difference inside and outside the corn kernels, resulting in the rapid expansion of high-pressure steam in the
kernels. The kernels burst instantaneously, which then becomes delicious popcorn.

Dangerous? Not at all. "Myth Busters", an American TV show on the Discovery Channel, shot an episode which tested if this old-styled popcorn machine from China would cause an explosion. They all anticipated it would act as a bomb and if operated incorrectly. It did not explode as they expected it to.

Cool? Absolutely! Do not doubt that an engineering miracle was invented a hundred years ago. According to the 1893 Chicago World Expo Chicago, a British man called Charles Cretors showcased the "Kingery's Steam Power Peanut Roasters" which was considered a rudimentary popcorn machine. Isn't it like time travel back to the future?

Ren Cihan is a G11 student at the Experimental High School Attached to Beijing Normal University.

The opinions expressed here are those of the writer and do not necessarily represent the views of China Daily and China Daily website.

If you have a specific expertise, or would like to share your thought about our stories, then send us your writings at opinion@377.1122620.com, and comment@377.1122620.com.

Most Viewed in 24 Hours
China Views
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
澳门皇冠赌场网站 皇冠体彩直营 揭秘网络棋牌骗局视频 88娱乐2客服电话 多宝游戏游戏火热pk
沈阳娱网棋牌游戏 澳门太阳城集团网上 88msc广东会娱乐官网 永盛最新棋牌 永利皇宫代理管理网手机
好赢彩票MG电子 皇冠代理专员发放佣金 开户注册送28元体验金 澳门sb61tt平台登录 万喜堂彩票app下载安装
金龙娱乐官方网 葡京牛牛 申博咪牌百家乐 电子游戏老虎机 申博登录不了