 小小浑天仪 今天展示一个和小宝贝一起拼的乐高机器，说明书上叫小卫星，有点像古代的，那种掩饰天体运转的天文仪器。不过这个是超级简化版，只要一个主星和围绕它旋转的卫星。 https://newappaz.oss-accelerate.aliyuncs.com/wherein_images/post/20210311/1b9de11745ba4d2989ae9a2fee5bf6cc.jpg 核心原理就是下面那两个齿轮了，齿轮的咬合方式，能够把水平的旋转转化为垂直方向上的旋转。这种机械原理应用很广泛的，最常见的就是直升飞机，直升飞机的发动机主轴也是水平旋转的，通过这样一组齿轮将发动机主轴的旋转方向改为垂直方向驱动螺旋桨叶旋转。所以我觉得这个小乐高也可以叫直升机模拟器。如下图：  还有就是f35B型战斗机，就是可以短距起飞，垂直降落的那个版本，机身里面有一个升力风扇，也是通过这种齿轮的咬合方式获得发动机的动力。  图片来源：rolls-royce.com 当然，小宝贝只是觉得这个很好玩，但是多少会给她留下一点机器原理的印象吧。
| author | cheva |
|---|---|
| permlink | qpsor6 |
| category | hive-105017 |
| json_metadata | {"app":"peakd/2021.03.7","format":"markdown","tags":["cn","cn-reader","creativecoin","palnet","stemsocial","neoxian","lifestyle","life"],"image":["https://cdn.steemitimages.com/DQmeRrb7TkDqKizyKtTJzNZrZA7zQZEiYTWqxYVRfHKLaAr/%E5%B0%8F%E5%8D%AB%E6%98%9F.gif","https://newappaz.oss-accelerate.aliyuncs.com/wherein_images/post/20210311/1b9de11745ba4d2989ae9a2fee5bf6cc.jpg","https://cdn.steemitimages.com/DQmb7V5ji3WXQZWZjQ6yDr455wK2Hsg6hJTgV61giMymrgz/Understanding_Helicopter_s_Engine_Turboshaft.gif","https://www.rolls-royce.com/~/media/Images/R/Rolls-Royce/content-images/defence-aerospace/liftsystem-engine.jpg"]} |
| created | 2021-03-11 07:57:12 |
| last_update | 2021-03-11 07:57:12 |
| depth | 0 |
| children | 1 |
| last_payout | 2021-03-18 07:57:12 |
| cashout_time | 1969-12-31 23:59:59 |
| total_payout_value | 10.240 HBD |
| curator_payout_value | 10.207 HBD |
| pending_payout_value | 0.000 HBD |
| promoted | 0.000 HBD |
| body_length | 897 |
| author_reputation | 260,792,800,893,595 |
| root_title | 乐高小卫星 |
| beneficiaries | [] |
| max_accepted_payout | 1,000,000.000 HBD |
| percent_hbd | 10,000 |
| post_id | 102,302,274 |
| net_rshares | 34,395,229,506,757 |
| author_curate_reward | "" |
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| cheva | 0 | 95,899,683,906 | 50.74% | ||
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| youandme | 0 | 624,187,440 | 100% | ||
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| fishbb | 0 | 1,000,554,791 | 25.37% | ||
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| ericet | 0 | 1,801,493,143 | 50.74% | ||
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| huangzuomin | 0 | 1,705,982,699 | 50.74% | ||
| liewsc | 0 | 1,516,881,841 | 25.37% | ||
| tanzy | 0 | 694,927,235 | 25.37% | ||
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| candy.tang | 0 | 11,895,647,590 | 100% | ||
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| cnbuddy-reward | 0 | 34,861,726,432 | 50.74% | ||
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| emma-emma | 0 | 5,883,326,204 | 100% |
这个很棒鸭
| author | jychbetter |
|---|---|
| permlink | qpt4ox |
| category | hive-105017 |
| json_metadata | {"app":"hiveblog/0.1"} |
| created | 2021-03-11 13:41:24 |
| last_update | 2021-03-11 13:41:24 |
| depth | 1 |
| children | 0 |
| last_payout | 2021-03-18 13:41:24 |
| cashout_time | 1969-12-31 23:59:59 |
| total_payout_value | 0.000 HBD |
| curator_payout_value | 0.000 HBD |
| pending_payout_value | 0.000 HBD |
| promoted | 0.000 HBD |
| body_length | 5 |
| author_reputation | 819,829,617,739,859 |
| root_title | 乐高小卫星 |
| beneficiaries | [] |
| max_accepted_payout | 1,000,000.000 HBD |
| percent_hbd | 10,000 |
| post_id | 102,306,148 |
| net_rshares | 0 |
hiveblocks