The quietest place on earth
Do you hear your heartbeat? For most of us, the answer is not – unless you stand in the Laboratories Orfield annechous chamber, and in this case you can hear how the blood racing through your veins and the sound of your own blinking. The camera in Minneapolis has a name for the quietest place on Earth, reading background noise –24.9 A-adherent decibels, which means that the surrounding sound is much lower than the threshold of human hearing.
The longest battery
An experimental electric bell at the University of Oxford in England, for 185 years called almost continuously. Based on two dry heaps – the early types of batteries – in the series, the bell accelerates more than 10 billion times since it was installed in 1840. However, its ring is now barely audible under a jar of a glass bell that protects the experiment.
The fastest printing using brain signals
For people with certain neurodegenerative states that affect muscle control, communication can be difficult. Brain and switching interfaces offer a solution, directly converting the brain waves to the text. But until recently, this translation was slow. In 2022, researchers from the University of California to San Francisco set a record of the fastest communication using brain signals: 78 words per minute.
Impeccable consumer electronics
Definite Consumer electronicsHow iPhoneIt seems ubiquitous. More than 18 years and about the same number of generations, more than 2.3 billion Apple smartphones were sold. But when you break it into separate models, what devices did the greatest success? See how some especially popular devices are compared.
Strong magnetic field on Earth
At least among the magnets that do not explode from their own strength, the national laboratory of the national laboratory of the magnetic field with a high level of magnetic field contains a record for the most powerful magnetic fields on Earth. The 100-T-Twal Field, which is about 2 million times more than the Earth’s magnetic field, can be turned on for 15 milliseconds only once an hour.
The largest spike of electricity
British love tea. That's why Great Britain National mesh Engineers should manage bursts of using energy during popular broadcasting events, when many viewers put their kettles at the same time. A The largest surge occurred in 1990 World Cup The semifinals. Immediately after England lost the penalty game, demand increased by 2800 megavatts, which is equivalent to electricity, used about 1.1 million teapots.
The smallest pacemaker
Implantation of the majority pacemakers Invasive operations are required. But a group of researchers in North -Wall UniversityIn Evvanton, Illinois, developed a device that can be implanted through the tip of the syringe. The measurement of 3.5 millimeters in its largest dimension and suitable for newborns with heart defects, a pacemaker, which is intended for patients who need only a temporary pace, is distorted in the body after it has completed its work.
The fastest data transfer
Earlier this year, a team from the National Institute of Information and Communication Technologies and Sumitomo Electric, in Japanexploded Record 1.02 billion bits (Pepubits) After 1808 kilometers in one second or 1.86 exile per second. At such a speed, after one second you could send everything in the world, you watched Netflix In the first half of this year from Tokyo to Shanghai 4000 times. Special 19-Jader Optical fiber I did it possible.
The fastest charging
Chinese automaker Act I used a new fast charging system, which reached a peak of 1,002 kilowatts and added 421 kilometers in the range He is then In less than five minutes. This is about 84 kilometers per minute. Among the key innovations standing behind the feat: 1500-volts Silicone carbide transistors and lithium -jeelous phosphate batteries Half of the internal resistance of their predecessors.
