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With biomass plants, the government wanted to ensure that the climate targets would be met. The government set aside 10 billion euros for the construction of 628 biomass plants. Objections to the biomass plants soon arose: they would not be as CO2-neutral as was assumed and there would be more useful ways to use the biomass.

In 1905, the popsicle was invented by eleven-year-old Frank Epperson. He made a drink with water and some soda powder that he stirred through with a stick. Because his mother told him to go to sleep, he left the drink. When he woke up the next morning, it had frozen and the drink with the stick in it was frozen too. This was the first popsicle.

Columbus was looking for a faster sailing route to the Dutch East Indies. He planned to sail there via the West. With the financial support of the Spanish Queen Isabella, his ships left for the West, but instead of finding a new route to the Dutch East Indies there, he found the undiscovered continent of America.

The yellow fever mosquito in South America transmits several diseases in large numbers, including the dengue virus, the yellow fever virus, chikungunya and the Zika virus. The cost of dengue on Aruba is high and many agreed on the need for these actions. It was not possible to raise the intended amount; more than half was promised, but that was all. More parties were sceptical and eventually the project was stopped.

The worst air disaster ever occurred on the runway of the airport on the Canary Island of Tenerife. Two Boeings collided there at full speed. One Boeing did not have take-off clearance yet, but other circumstances also played a role. It was very foggy and there was confused communication with the control tower. Since then, flying has become much safer. Airline staff are allowed to make mistakes and admit them, so that everyone can learn from them.

Hotline to Home was a telecom project with the aim of strengthening and maintaining important social contacts of hospitalised patients, using a combination of new technology and supporting communication volunteers. Unfortunately, it turned out that the patients involved did not understand the benefits of this project. The acceptance of video calls turned out to be low, contrary to theoretical considerations. Scarce personal contact was preferred to image calling.