The experiment is not a test of geoengineering since it will not have any effect on the climate or the weather.

这个实验不是一项地球工程学的试验，因为它不会对气候或天气产生任何影响。

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Adding a twist to the experiment, the scientists asked a group of participants to list their monetary expenditures from the past month and another group to list weather conditions in the past month.

科学家在实验中加了一项，他们让一组人列出他们上个月的货币支出，另一组列出上个月的天气状况。

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The experiment will not spray anything other than tapwater into the air, so it is not a test of geoengineering, since it will not have any effect on the climate or the weather.

这个试验只是将自来水而非其它物质喷向空中，不会对气候或天气产生任何影响，所以它不算是一项地球工程学的试验。

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Tim Samaras founded TWISTEX, the Tactical Weather Instrumented Sampling in Tornadoes Experiment, to help learn more about tornadoes and increase lead time for warnings, according to the official website.

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The predicted severe storms come as five National Weather Service offices in Missouri and Kansas are conducting an experiment on how to better convey risks from tornadoes and severe storms.

CNN: Plains states could see tornado outbreak