Ice without refrigeration. Effective trick and its solution

EFFECTIVE FOCUSES AND THEIR CLUES
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Ice without refrigeration. Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

Here is an aluminum mug, here is snow on a plank. How to make ice out of this snow? No, we won't put it in the refrigerator... Well, the snow has already begun to melt during our conversations.

Focus secret:

Please bring salt from the kitchen. We put snow in a mug, put snow in a puddle of water on a plank ... Add some salt to the snow ... Be patient, after a while ice will form under the mug. You present it to those who did not believe you.

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Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

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Random news from the Archive

Airbus helicopter on green fuel 03.07.2022

Airbus became the first aircraft manufacturer to fly a helicopter powered by both engines on 100% sustainable aviation fuel (SAF), typically derived from bio-materials, including used grease, vegetable oil and other degradable waste. The H225 helicopter used Safran Makila 2 engines.

The recent flight is in line with Airbus's commitment to certify commercial airliners and helicopters using sustainable sustainable fuels by 2030 and is on track to achieve a 50% reduction in carbon emissions without compromising flight quality.

In November, the company was already testing a similar helicopter, but at that time only one engine was running on the SAF. In addition, in March 2022, she tested the A380 Jumbo Jet airliner, one of whose engines also ran on eco-fuel. The main goal is not only to prove the ability of engines to use such fuel without design modifications, but also to evaluate the performance of all systems when using SAF. In the future, numerous tests are planned on different types of helicopters with different fuel options and engine configurations.

"Sustainable jet fuel" is obtained by recycling food waste and other raw materials - from used food fats to carbon dioxide captured from the air and agricultural raw materials. One of the advantages of SAF is that these fuels are almost identical to those obtained from fossil fuels. Today, no more than 50% SAF can be used blended with conventional jet fuel without engine modifications, which is very effective in reducing carbon emissions over the life cycle of aircraft. But Airbus wants to do more.

The use of two engines at once on the SAF is a milestone for the helicopter industry. Firstly, this will be another step on Airbus' path to certification of the use of exclusively eco-fuels, and secondly, it will reduce CO2 emissions by up to 90%.

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