00:00Hi, it's time for the quiz, ready to make your brain work with these questions of type true or false, so let's go!
00:07Once upon a time, the spider's web was used to make guitar strings.
00:15It's false!
00:16The spider's web has never been used to make guitar strings, but it has been used to make violin strings.
00:23It is because the spider's web can produce unique sounds, which makes it a useful resource for the construction of musical instruments.
00:31Astronauts want spicy food in space.
00:39True!
00:40In space, most astronauts lose their sense of smell, and this sense is generally what makes us perceive the taste of food.
00:47Because of this, many astronauts begin to feel like spicy sauce, such as Tabasco, to compensate for the lack of flavor in their food.
00:58Astronauts see the yellow sun when they are in space.
01:06It's false!
01:07In space, astronauts see the white sun instead of yellow.
01:12As earthlings, we perceive the yellow sun due to a distortion caused by the atmosphere.
01:18But since there is no atmosphere in space, the sun appears like a huge white luminous sphere.
01:28A coconut is a nut.
01:36False!
01:37The coconut is actually a seed drop, that is to say, a fruit with a hard envelope around a seed.
01:44In case you were wondering, peaches and olives are also drops.
01:50Some lizards have green blood.
01:58It's true!
01:59The green-blooded 5, a New Guinea Papua lizard, has elevated levels of a greenish pigment called biliverdin, which gives its blood its unique color.
02:10The sound travels faster in steel than in air.
02:17Yes, it's true!
02:18The sound travels about 17 times faster in steel than in air.
02:23This is because the molecules are denser in a solid material than in a liquid or a gas, which allows sound waves to pass through them more easily.
02:33In England, we consider that black cats are unlucky.
02:40False!
02:41Although black cats are considered unlucky in many countries, they are considered a lucky charm in England.
02:49NASCAR drivers can lose up to 9 kg of sweat in a single race.
02:57It's false!
02:58NASCAR racing drivers can still lose up to 5 kg of sweat in a single race.
03:05This occurs due to several factors, including high outside temperatures, thick uniforms, and accumulated heat in cars.
03:13Odontophobia is the fear of teeth.
03:20Yes, it's true!
03:21People suffering from odontophobia, also called dentophobia or dental fear, do not like to go to the dentist.
03:28False!
03:29The referees run a lot, but the average speed is 20 km per match.
03:34The largest desert in the world, the Sahara in Africa, is about the size of the Amazon rainforest in Latin America.
03:43False!
03:44The Sahara is the largest desert in the world, and the Sahara is the largest desert in the world.
03:50The Sahara is the largest desert in the world, and the Sahara is the largest desert in the world.
03:56False!
03:57The Sahara is huge, but its 8.5 million square kilometers are a bit equal in Australia, not in the Amazon.
04:04The geckos generally eat their skin after their mouths.
04:11True!
04:12The geckos love to nibble on their skin, but they can't live on that alone.
04:16They also eat insects, yam.
04:20They also eat insects, yam.
04:23Ostriches are one of the rare species of birds that do not fly.
04:32It's absolutely true!
04:34Ostriches have wings, but they can't fly.
04:38However, these animals are fast and powerful runners.
04:41Ostriches can run at 50 km per hour and sprint at 70 km per hour.
04:48They use their wings as governors to change direction.
04:52The first recipe for cheese macaroni dates from the 13th century.
05:00True!
05:02It's hard to believe, but cheese macaroni is considered a traditional dish.
05:07Historians have found an Italian cookbook from the 13th century
05:11containing what they think is one of the first recipes of this kind.
05:15The black box in a plane is black.
05:25As strange as it may seem, it's false.
05:30The black boxes in planes are actually orange.
05:33These boxes record everything that happens on board a plane.
05:36In the event of an accident, they must be easy to locate.
05:39You didn't hear?
05:40Orange is the new black.
05:46M&M's mean Mars and Murray.
05:52Yes, it's true.
05:54These are the names of the family of the co-creators of the candy.
05:58A is the most commonly used letter in the English language.
06:08Foul!
06:09The most commonly used letter in English is the E.
06:12It appears in about 11% of English words, according to the Oxford Dictionary.
06:17The roar of a lion can be heard up to 8 km away.
06:25It's true!
06:29The Principality of Monaco is the smallest country in the world.
06:35No, it's false!
06:37The smallest country in the world is the Vatican City, in Rome, with a total of 0.144 km².
06:45The real name of Madonna is Madonna.
06:52It's true! Her full name is Madonna Louise Ciccone.
06:58The coffee is made from beans.
07:05It's true!
07:06The liquid coffee we drink undergoes a long process.
07:10At first, farmers harvest the coffee beans, then they are processed and dried.
07:16The beans are then roasted and ground.
07:20An octopus has three hearts.
07:25It's true!
07:26An octopus has a main, systemic heart, which distributes blood throughout its body.
07:31The two additional hearts send blood to each of its branches.
07:36Venus is the warmest planet in the Solar System.
07:43It's true!
07:44Although Mercury is closer to the Sun, it has no atmosphere and is therefore subject to large temperature fluctuations.
07:51But Venus has a surface temperature of about 450°C, which makes it the warmest planet in our system.
07:59Bananas are curved because they grow upwards, towards the Sun.
08:06It's true!
08:07A process called negative geotropism means that the fruit grows upwards in order to pierce the canopy.
08:13Fish can wink.
08:19It's false, but it would be super cute!
08:23Hot water and cold water make the same noise when they are poured.
08:29False.
08:30Strange facts.
08:31They make a different noise.
08:33Hot water has a higher viscosity than cold water.
08:38Denmark has twice as many pigs as people.
08:44It's true!
08:45Denmark has a population of more than 5 million people, but its pig population is twice as large.
08:54No one has ever gone around the world on a golf course.
08:59It's false.
09:00In March 1999, Brian Jones and Bertrand Piccard made the first non-stop flight around the world in a balloon.
09:07Their trip started in Switzerland and ended above Africa.
09:10And it only took 20 days.
09:14Scientists have developed a fork that measures the speed at which you eat.
09:22Yes, it's true!
09:23These inventors hope that people will use this fork to learn to eat more slowly.
09:29The acronym NASA means National Astronomy and Space Administration.
09:37It's false.
09:38NASA signifies National Aeronautics and Space Administration.
09:44Astronauts grow about 15 centimeters in space.
09:49False.
09:5015 centimeters.
09:51That's a lot!
09:52Usually, astronauts can grow from 2 to 5 centimeters when they travel in space.
09:57This is due to the absence of gravity that allows the spine to stretch,
10:02thus causing a small growth in astronauts.
10:05There is a scientific reason for the fact that we grumble when we hear a clicking of nails on a blackboard.
10:14True.
10:15The nails that scratch a blackboard produce a sound frequency similar to that of a chimpanzee's cry of alarm.
10:22Thus, the feeling of distress that humans feel when their nails scratch could be a sign that our sensors of danger have been triggered.
10:30Medieval bakers used chalk to whiten their flour.
10:38It's true.
10:39In the past, white bread was a sign of wealth and was sold at higher prices.
10:43Some bakers therefore colored their flour with chalk to make more money.
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