主要赞助单位
一个独立的联邦机构在1950年由美国国会创建的,以促进科学的进步。
该奥多内尔基金会致力于建筑模型方面,以提高教育质量。
浮力
更新日志浮力
-
1.05 (11-3-31)
- density: Removed 1 significant figure from lead and gold in the density table
- buoyancy: Changed the brick density from 1922 to 2000 so that the brick mass is exactly 10.0kg in the "same volume" mode
- buoyancy: Block labels ("A", "B") in the playground node are now behind force value readouts
- buoyancy: Removed fluid drag vector display
- Removed the 2L bottle
- buoyancy: Changed masses for the "Same Mass" and "Same Density" modes to round numbers.
- Fixed scale bug where it reported incorrect forces while being controlled by the user. This has a side-effect where the scale can be dragged into the ground, but will pop back into the scene when released.
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1.04 (10-12-16)
- Fixed "reset all" when in "My Block" mode
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1.03 (10-12-16)
- Removed tick marks from the side of the pool
- Improved the block control panel
- Added ability to throw blocks
-
1.02 (10-10-12)
- Improved the colors of the density slider readouts
- Made 'styrofoam' translatable
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1.01 (10-9-20)
- Limited the wood mass and volume so that the pool can't be overflowed
- Fixed: Reset all broken for block texture and combo box
- Fixed: Slider thumbs don't fade out when the value is below the slider minimum
- Changed show/hide table button color
- Hides material table when the user switches away from the mystery mode
- Fixed bug where My Object would turn to Aluminum
- Disabled directly changing the density of the custom object
- Moved the "Show Table" button
- Tweaked the appearance of the custom object properties box
- Removed the word "balloon" from the table of material densities in "mystery objects" mode
- Changed densities of blocks in "objects of same mass" mode to include volumes with decimal places
- Fixed the mass of blocks in the "objects of same density" mode so that calculations with 2 decimal points come up exactly equal
- Changed the mass of blocks in the "objects of same volume" mode so that some objects sink and some float
- 1.00 (10-9-12)
陈江涛(华南师范大学教育信息技术学院2009级硕士研究生 cjtmw@163.com)
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