How do you make dry ice?
»> Before knowing how dry ice is manufactured, you need to know that, unlike “wet” ice, it is not made of water (H2O), but of carbon dioxide, the CO2 that we expel in our breath. If in the gaseous form…
What is the difference between Thai boxing, kickboxing and full-contact?
Full-contact and Thai boxing (or Thai boxing) are kickboxing sport modalities. This story began in the 1970s, when karate, tae kwon do and kung fu fighters, dissatisfied with the limitations of their sports, created a new fighting style. Initially baptized…
What weapons are used in kung fu?
READER QUESTION Wagner J. dos Santos, Campo Grande, MSILLUSTRATES legendary toadEDITION Felipe van Deursen There are hundreds. actually the kung fu it is not a martial art per se, but a generic term for the different types of fighting in…
How did the Berlin Wall fall?
The Berlin Wall existed for 28 years, from 1961 to 1989. With the defeat of the Nazis, in 1945, Berlin (former capital of the 3rd Reich, of Adolf Hitler), was divided into four zones of influence, respectively controlled by France,…
When did hospitals emerge?
– (Disclosure/Reproduction/Wikimedia Commons) The first known ones were built in 431 BC, in Ceylon (present-day Sri Lanka), in South Asia. Two centuries later, Emperor Asoka created special institutions in India to treat illnesses similar to today’s hospitals. In Europe, its…
Why are salt, sugar and water used in the preparation of homemade whey?
»> The recipe is simple: 1 liter of water, 2 tablespoons of sugar, and 1 teaspoon of salt. Diarrhea means great loss of water from the body, causing such dehydration that it can lead to death, especially children. The secret…
Are there other places similar to the Bermuda Triangle?
(Strange World/Strange World) Yes. There are at least two other dangerous shipping regions that are named after the famous triangle in the Caribbean. One of them is the Dragon’s Triangle, which is located between Japan, Guam and Taiwan. The area…
How does a battery work?
– (Gil Tokio/Pingado/) DEAF It is also a kind of drum, but used with the tom-toms in fills. Its sound is almost as low as that of the bass drum. Surdos made from mahogany or maple produce a smoother, crisper…
Is there a skinny sumo wrestler?
(Antonio/Gaudério/Reproduction) QUESTION Will Poliveri, Sao Paulo, SP Technically, yes. For the Brazilian Confederation of Juice, the lightweight category admits women up to 65 kg or men up to 85 kg. At this weight, depending on their height, the athlete will…
How does a taser work?
WORLDWORLD-133-53-620 SHOT, CHANGED The non-lethal weapon of choice for law enforcement, the taser fires a powerful electrical pulse that immobilizes the target. The current is transmitted by two probes, which are at the tip of the pistol, in a cartridge.…