Telegram Group & Telegram Channel
103 造假这些先不说,小学生初中生想接触探索型的话题怎么入手,我其实想过一个很初等的适合小学生初中生的题目——用简单的光学仪器在一定距离外测一下这些高速上的标志的高度以及上面的汉字/字母的尺寸。有简单的三角形的知识就可以做,所以初中生应该没啥问题。初中课本上介绍过古人用类似的方法测量太阳的高度之类的内容,但太阳高度不是一个很适宜做的实验——看起来高大上,得到的数据个人没法交叉验证,还有很多参数只能相信权威(而且太阳太高了你必须在相隔几百千米的两地同时测)。高速上的标志这些,在相关网站查得到设计标准,理论上也可以用多种方法来测量,还可以退一步先测量一下够得着的路边的一人高的标志(比如行人过街这种),试试自己的方法行不行(实在不行拿个梯子站上去用卷尺量一量),比较适合让小学生初中生感受一下初步的探索。

如何看待武汉科协回应 2 名小学生研究茶多酚抗肿瘤获奖:学生能够独立完成实验,并按照程序申报? https://www.zhihu.com/question/407381850/answer/1343698814



tg-me.com/baozunxin/103
Create:
Last Update:

103 造假这些先不说,小学生初中生想接触探索型的话题怎么入手,我其实想过一个很初等的适合小学生初中生的题目——用简单的光学仪器在一定距离外测一下这些高速上的标志的高度以及上面的汉字/字母的尺寸。有简单的三角形的知识就可以做,所以初中生应该没啥问题。初中课本上介绍过古人用类似的方法测量太阳的高度之类的内容,但太阳高度不是一个很适宜做的实验——看起来高大上,得到的数据个人没法交叉验证,还有很多参数只能相信权威(而且太阳太高了你必须在相隔几百千米的两地同时测)。高速上的标志这些,在相关网站查得到设计标准,理论上也可以用多种方法来测量,还可以退一步先测量一下够得着的路边的一人高的标志(比如行人过街这种),试试自己的方法行不行(实在不行拿个梯子站上去用卷尺量一量),比较适合让小学生初中生感受一下初步的探索。

如何看待武汉科协回应 2 名小学生研究茶多酚抗肿瘤获奖:学生能够独立完成实验,并按照程序申报? https://www.zhihu.com/question/407381850/answer/1343698814

BY 包遵信的想法们




Share with your friend now:
tg-me.com/baozunxin/103

View MORE
Open in Telegram


包遵信的想法们 Telegram | DID YOU KNOW?

Date: |

How Does Bitcoin Mining Work?

Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. “This is how new coins are created” and new transactions are added to the blockchain, says Okoro.

That strategy is the acquisition of a value-priced company by a growth company. Using the growth company's higher-priced stock for the acquisition can produce outsized revenue and earnings growth. Even better is the use of cash, particularly in a growth period when financial aggressiveness is accepted and even positively viewed.he key public rationale behind this strategy is synergy - the 1+1=3 view. In many cases, synergy does occur and is valuable. However, in other cases, particularly as the strategy gains popularity, it doesn't. Joining two different organizations, workforces and cultures is a challenge. Simply putting two separate organizations together necessarily creates disruptions and conflicts that can undermine both operations.

包遵信的想法们 from us


Telegram 包遵信的想法们
FROM USA