Ninth-grade students at a school in Denmark carried out an experiment that caught the attention of scientists around the world, and its results may make you think twice about filling your home with wireless devices.
Five schoolgirls ran the experiment after noticing that sleeping with their mobile phones next to their heads made them less able to concentrate the next day. As they did not have the money to study the human brain, they decided to watch the effect of Wi-Fi signals on plant growth. The results were rather startling.
They put six trays of seeds away from wireless signals and six next to two Wi-Fi routers, which by their calculation gave off about as much as one mobile phone.
Over the 12 days of the experiment, the seeds away from the signals grew normally, while those near the routers died and turned brown. The science teacher supervising them said there were no other factors involved: light, temperature and humidity were checked throughout.
Earlier studies had shown that city trees growing close to wireless signals show signs of radiation damage, such as peeling bark and falling leaves.
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