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Random funny trick question:
On the way not to meet, but on the way to find. In the ocean, in the lake, even in the swamp you will see, but never in the river. |
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The hostess needs to bake 6 pies. How can she cope in 15 minutes if only 4 pies are placed in the pan, and the pie should be baked for 5 minutes on each side?
(1. put 4 pies; 2. turn over 2 pies, remove 2, put 2 new ones; 3. remove 2 ready ones, turn 2 over and turn over 2 removed earlier)
The clock strikes six times in thirty seconds. How long will the clock strike twelve?
(66 seconds. Between 1 and 6 beats 5 intervals of 6 seconds, and between 1 and 12 - 11 intervals of 6 seconds)
Hours, but no hours, no minutes, no seconds.
(Hourglass)
What can't you hide in a chest?
(Sunshine)
A man jumped out of a plane without a parachute. He landed on solid ground, but remained unharmed. Why?
(The plane was on the ground)
A person makes it turn on, but when it turns on, a person immediately turns it off.
(Alarm)
The man is late for the train. There are 2 minutes left before the departure of the train, and the path to the station is 2 km. If he runs the first kilometer at a speed of 30 km/h, then how fast should he run the second kilometer?
(He will run the first kilometer in 2 minutes. The train will leave, and a person may not run further or walk the second kilometer at any speed: he missed the train anyway)
The person is completely healthy, not dead, not disabled, but they take him out of the hospital in their arms.
(Newborn)
The man looks at the portrait. "Whose portrait are you looking at?" - they ask him. The man replies: "In the family I grew up alone, like a finger, alone. And yet the father of the one in the portrait is the son of my father." Whose portrait is the person looking at?
(Father examines the portrait of his son)
The more you take from it, the more it becomes.
(Pit)
The more you poke, the bigger you get. What it is?
(Hole)
The more they trample on it, the better.
(Grape - stomp on grapes to make wine)
How does day and night end?
(letter "b")
What ends day and night?
(soft sign)
The more of them, the less weight. What's this?
(holes)
How are the buttons on the phone fundamentally different from the buttons on the calculator?
(Location, top to bottom and bottom to top)
How does summer end and autumn begin?
(Letter "O")
How do day and night end?
(soft sign)
How is a horse different from a needle?
(First you sit on a needle, then you jump, and first you jump on a horse, then you sit)
What can only be shared once?
(Secret)
How is a woman's chest different from a toy railroad?
(Nothing: both are made for children, and dads play with them)
What is the difference between a young bachelor and an old one?
(A young bachelor cleans up his house to invite a woman, and an old one invites a woman into the house to clean up)
What is the difference between a circus audience and a balloon?
(The balloon is first inflated, then let in, and the audience is first let in, and then inflated)
What is the difference between a tractor and a tomato?
(The tomato is red, and in the tractor the door opens outward)
How is the first floor different from the ninth?
(From the first floor you will fall: “Boh! - Ah!” And from the ninth floor, “Ah! - Wham!”)
How is a person different from a locomotive?
(The locomotive first whistles, then starts off, and the person first starts off, and then walks and whistles)
What is thrown into the pot before something is put into it?
(Sight)
What do they drop when they need it, and pick it up when there is no need for it?
(Anchor)
What will happen to the crow, which has a blowjob for the seventh year?
(The eighth year will go)
What happens if you cross bugs with fireflies?
(Dense network of electrification throughout the country)
What will happen if a black scarf is lowered into the Red Sea?
(get wet)
What was "tomorrow" and will be "yesterday"?
(Present day)
What in our lives always increases and never decreases?
(Age)
What is in first place in Russia, and second in France?
(letter "r")
What is visible if nothing is visible?
(Steam)
What are all the people on Earth doing at the same time?
(live)
What unfolds everything, but does not move by itself?
(Mirror)
What is always in the sun and never casts a shadow?
(Planet Earth)
What always goes down and never goes up?
(Rain)
What was yesterday "tomorrow" and tomorrow will be "yesterday"?
(Today)
What is higher without a head than with a head?
(Pillow)
That two cost more than three?
(Two pedals of automatic gearbox are more expensive than three pedals of mechanics)
What was the elephant doing when Napoleon came?
(He chewed grass.
What do cats have that other animals don't?
(Kittens)
What is a word with 40 vowels?
(Forty - 40 a)
What is the herb that even the blind know?
(Nettle)
What has a head but no brains?
(head of garlic)
What has two arms, two wings, two tails, three heads, three bodies and eight legs?
(Rider on a horse with a falcon in his hand)
What is used in hockey, in the mind of a Jew, in a woman's body and on a chessboard?
(Combination)
What disappears as soon as you name it?
(Silence)
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01.05.2024
Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>
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| Random news from the Archive Bacteria to turn sugars into synthetic oil
25.11.2021
American biochemists have created a strain of E. coli that can produce biofuels using various sugars as raw materials.
"We have created a two-step biochemical process whereby glucose can be directly converted into unsaturated hydrocarbons using living and non-living catalysts. Biofuel production in this way will bring humanity closer to the creation of a full-fledged green energy," said Wang Zhen, associate professor at the University at Buffalo and one of the authors of the study. .
Over the past decades, scientists have come up with several methods for converting plant biomass into fuel. As a rule, it is produced in several stages with the participation of fungi and different types of bacteria. These fuels can be used, but they are quite expensive to produce, and they are inferior to gasoline in terms of energy intensity.
Wang Zhen and her colleagues proposed to solve this problem with the help of bacteria that can directly convert vegetable raw materials and the sugars contained in it into a mixture of unsaturated hydrocarbons, which are similar in composition and properties to gasoline, diesel fuel and other petroleum products.
To do this, scientists have built into the genome of the common E. coli four genes with "instructions" for the production of enzymes that gradually convert glucose and other sugars into fatty acids. Specialists selected these proteins in such a way that they did not interfere with the work of all other cellular systems associated with the synthesis of fats, so they did not threaten the life of microbes.
All these enzymes were borrowed from the genomes of other bacteria, in particular, the pathogenic microbe Treponema denticola, associated with the development of periodontitis. Biochemists adapted these proteins to work with each other, and then tested whether the E. coli they created could turn sugar into an analogue of gasoline and other petroleum products.
Experiments have shown that one more component is needed for its production - a catalyst based on niobium oxide. It converts fatty acids into unsaturated hydrocarbons. In combination with microbes, this catalyst can convert about 8% of the initial mass of glucose into a biological analogue of oil.
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Amina Batorshina
Cool puzzles! [:D] So funny! [;)] [:)]
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