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造环形山改进逼真版本来了,三下科学课件.【吴老师交互课件】

  • 2026-05-09 00:56:02
造环形山改进逼真版本来了,三下科学课件.【吴老师交互课件】

环形山撞击改进版本无水印来了。

这是一份名为“我们来造环形山”的交互式天体物理模拟课件,它用网页的形式,把月球表面变成了一个可以亲手“砸”出坑来的游乐场。你不需要任何复杂的设备,只要在电脑、平板或者手机的浏览器里打开这个文件,就能立刻开始一场关于陨石撞击的探索之旅。

这个课件最核心的玩法极其直观——在月面上拖拽发射陨石。当你打开页面,会看到一片灰白色的月球表面,上面布满了大大小小的环形山。如果你想自己制造一个,只需要用鼠标或者手指在月面上按住不放,然后向某个方向拖动,再松开,就会有一颗陨石沿着你拖拽的方向呼啸着飞过去,狠狠地砸在月球上。拖动距离的长短决定了撞击的力度,拖得越远,撞击越猛烈。每一次撞击都会伴随着逼真的声响和短暂的手机振动(如果设备支持的话),陨石落地的一瞬间,一个新的环形山就诞生了。

但这个课件的魅力远不止于“砸坑”这么简单。它引入了一套相当完整的陨石参数系统,让你可以像真正的科学家一样,控制撞击的各种变量。在屏幕左侧,有四组滑块,分别控制陨石的大小、速度、密度和撞击角度。你完全可以尝试各种组合:比如用一颗高速但密度较低的石质陨石垂直撞击,看看能砸出什么样的坑;或者换成一枚沉重又缓慢的铁质陨石,以很小的倾斜角度擦过月面,观察它砸出的椭圆形坑是什么样子。屏幕右侧还有四个“天体类型”按钮,让你在石质陨石、铁质陨石、冰质彗星和巨型小行星之间切换。不同的材质不仅影响撞出来的坑的颜色和形态——冰质彗星会留下偏冷的色调,铁质陨石则更暗沉——还会影响撞击的音效和碎片的质感。

每一次撞击产生的环形山都不是简单复制粘贴的。课件用了一套复杂的不规则多边形生成算法,让每一个坑都独一无二。大的环形山会呈现出中央峰——那是撞击后地壳回弹形成的小山包;坑壁上会有阶梯状的阶地,那是重力作用下岩层滑塌的结果;坑的周围还可能溅射出放射状的辐射纹,那是撞击抛出的碎屑物质铺成的亮纹。如果你凑近了看,还能发现坑壁上标注了“不规则环形山壁”、“溅射辐射纹”等文字说明,就像博物馆里的展品标签一样,告诉你眼前这个地貌叫什么名字、是怎么形成的。更贴心的是,课件甚至会在撞击点周围生成飞溅的碎片粒子、冲击波动画,以及一群小小的次级撞击坑——模拟那些被主撞击抛出的碎块再次砸到月面上留下的痕迹。

在科学教学方面,这个课件的设计是可圈可点的。它内置了一个“知识”弹窗,详细介绍了环形山的真实科学背景:撞击速度通常高达每秒12到72公里、大型环形山会产生中央峰是因为地壳回弹、地球上目前只发现了约200个撞击坑因为大部分已被风化侵蚀……另一个“特点”弹窗则说明了课件中模拟的多种地貌特征及其对应的真实地质成因。这样一来,学生不仅是在“玩”,更是在玩的过程中理解撞击坑的形态分类与形成机制。底部的实时数据显示着你一共造了多少个坑、最大的直径和深度、以及重叠撞击的次数——这些数据可以帮助学生进行定量比较和实验记录。

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  1. CONNECT:[ UseTime:0.000519s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000918s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001318s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000779s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000498s ]
  6. SELECT * FROM `set` [ RunTime:0.000213s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000537s ]
  8. SELECT * FROM `article` WHERE `id` = 501766 LIMIT 1 [ RunTime:0.000411s ]
  9. UPDATE `article` SET `lasttime` = 1778306558 WHERE `id` = 501766 [ RunTime:0.006989s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000320s ]
  11. SELECT * FROM `article` WHERE `id` < 501766 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000481s ]
  12. SELECT * FROM `article` WHERE `id` > 501766 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000444s ]
  13. SELECT * FROM `article` WHERE `id` < 501766 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000945s ]
  14. SELECT * FROM `article` WHERE `id` < 501766 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000590s ]
  15. SELECT * FROM `article` WHERE `id` < 501766 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002410s ]
0.085654s