第七届IYNT(2019)英文赛题
科学对抗1的主要问题
1.二维泡沫
Soap foam enclosed between two glasssheets appears as a network of polygons. Such foams evolve with time, as individual bubbles move and coalesce, and the liquid drains out. Investigate the structure and evolution of 2D foams.
封闭在两个玻璃板之间的肥皂泡沫看上去像个多边形网络。这些泡沫会随着时间的推移而演变，例如各气泡会移动并聚结，而且会有液体排出。研究二维泡沫的结构和演变。
2.山峰
What are the tallest mountains in the Solar System? Propose and analyze the theoretical models that can allow predicting the maximum altitudes of mountains on various celestial bodies.
太阳系中最高的山峰是什么？提出并分析可以预测各种天体上山脉最高海拔的理论模型。
3.盐化土壤
Saline soils may affect plant growth.How do salts affect the growth and development of plants?
盐渍土壤可能会影响植物生长。盐如何影响植物的生长和发育？
4.向日葵螺旋
Patterns of seeds in the head of asunflower have a very specific geometric structure. How can one describe andexplain such a structure? What other plants demonstrate similar geometric patternsin their leaves or seeds?
向日葵头部的种子图案具有非常特定的几何结构。如何描述和解释这样的结构？还有哪些植物在叶子或种子中表现出相似的几何图案？
5.风暴之后
Take two beakers of water and use aspoon to stir water clockwise in one beaker and counterclockwise in the other beaker.Observe the beakers after a sufficiently long time when the water flow hasslowed down. Is it possible to determine the original direction of water flowafter 1 hour? 1 day? 1 week?
取两烧杯的水，用勺子在一个烧杯中顺时针搅拌水，在另一个烧杯中逆时针搅拌。在水流减慢足够长的时间后观察烧杯。是否可能在一小时后确定水流的原始方向？ 1天或1周呢？
6.隔音
It is sometimes necessary to reduce unwanted noise in a closed space. Test various methods to soundproof your room.
有时减少封闭空间中多余的噪音很有必要。检验可以将你房间隔音的各种办法。
科学对抗2的主要问题
7.点火的玻璃
Propose and test various methods to start a fire with a magnifying glass.
提出并检验用放大镜点火的各种方法。
8.气味
Smells spread through the air, howeverit would take some time before a human nose is able to detect the smell. Study different aspects of odor diffusion and sensation of odor by humans.
气味通过空气蔓延，但需要一些时间才能被人的鼻子检测到。从不同方面研究气味扩散和人类对气味的感知。
9.阳光下的褪色
Printed pages fade in direct sunlight,especially if certain types of ink and paper are used. Propose quantitative parameters to study the prolonged exposure of ink and paper to sunlight.
印刷页面在阳光直射下会褪色，尤其是在使用特定类型的墨水和纸张时。提出量化参数，来研究在阳光下墨水和纸张的长时间曝光结果。
10.有弹性的骨头
Chicken bones kept in acidic conditions for a few days become elastic. Perform such an experiment in controlled conditions and investigate what components of bones are responsible for their mechanical properties.
在酸性条件下放置几天的鸡骨头变得有弹性。在可控条件下进行这样的实验，并探究骨骼的哪些成分负责其力学性能。
11.酵母
Investigate the rate of the multiplication of yeast at different temperatures.
研究酵母在不同温度下的繁殖率。
12.月亮
The apparent size of the Moon perceived by an observer depends on multiple factors. Investigate these factors and their role.
观察者感知到的月亮表观大小取决于多种因素。探究这些因素及其作用。
科学对抗3--你来发明
13.你来发明：烤面包
Distinctly different types of bread areproduced by varying methods of baking, proportions of ingredients, and types of flour. Suggest an experimental and theoretical study of how one or several bread varieties are baked.
通过不同的烘焙方法、原料比例和面粉类型可以制得完全不同的面包类型。提出怎样烘烤一个或多个种类的面包的实验与理论研究。
14.你来发明：眼球的移动
Human eyes are in constant involuntaryand voluntary motion when exposed to visual stimuli, such as scene viewing,reading or tracking a moving object. Use eye movement data to select and study an interesting psychological effect concerning perception of images and motion,in humans or in animals.
当人眼暴露于视觉刺激物时，例如场景观察，阅读或跟踪移动物体，人眼会持续无意识和有意识地运动。使用眼睛移动数据来选择和研究有关人类或动物中图像和运动感知的有趣心理效应。
15.分形几何
Propose an interesting experimental and theoretical investigation involving fractal geometry.
提出一个关于分形几何的有趣的实验和理论研究。
16.你来发明：短期记忆
What is the capacity and duration of human short-term memory? Suggest an experimental study to evaluate short-termmemory and factors that may have important influence.
人类短期记忆的容量和持续时间是多少？提出一项实验来估算短期记忆及有重要影响的参数。
17.你来发明：大气电学
Electric field is present in the atmosphere even in good weather. Suggest an interesting problem concerning atmospheric electricity.
即使在好天气里，大气中也存在电场，关于大气电学提出一个有趣的问题。
看完这些赛题，对哪几道题有灵感？欢迎留言！
• end •
閱讀更多 十五百科 的文章
