Category: Measuring technology

Atomic clocks that exploit the vibrations of cesium atoms are extremely accurate. But physicists around the world are not satisfied with it. Their goal: the nuclear clock based on energy changes in the thorium nucleus.

The primary atomic clocks of the Physikalisch-Technische Bundesanstalt in Braunschweig

Photo: Physikalisch-Technische Bundesanstalt

All watches work on the same principle. Something is triggered periodically so that it vibrates. Then the vibrations are counted. A certain number equals one second. For the first watches it was the (more…)

Road or air transport becomes safer through high-resolution weather data. So far, however, lacked a dense network of sensors. MIT researchers show that signal fluctuations in existing systems are suitable for weather observation.

Sky with clouds and light

ClimaCell’s software makes use of globally available communication networks for mobile communications and the Internet of Things.

Photo: Panthermedia .net / Lightpoet

“The weather affects every industry in every market in the (more…)

Around 10 million tons of food ends up in Germany every year, even though they are still edible. Fraunhofer researchers have now developed a pocket scanner that enables retailers and consumers to easily determine the actual shelf life of vegetables, fruits and the like.

You can see the food scanner and some tomatoes.

In the future, the food scanner would be able to store food in front of the garbage can if it is still consumable.

Photo: Fraunhofer IOSB

The mobile scanner uses a near-infrared (NIR) (more…)

As fast as the engineers at the KIT research institute in Karlsruhe, no one has ever measured a bullet in flight. Never so fast and so accurate. What is this good for? If you want to drive autonomously, you have to be able to record the environment extremely fast.

Graphical representation of the measuring process with a laser beam on a bullet: You have never been able to measure that fast and accurately. The method would be ideal for capturing the environment of autonomously driving cars.

Graphical representation of the measuring process with a laser beam on a bullet: You have never been able to measure this fast and accurately. The process would be ideal for capturing the environment of autonomously (more…)

The pyramids of Cheops are among the Seven Wonders of the World. However, researchers are always making new discoveries inside, like a 30-meter-long cavity. How can that be?

The computer graphics show a potential cavity in the Cheops pyramid southwest of Giza. Researchers have discovered it using cosmic rays.

The computer graphics show a possible cavity in the Cheops pyramid southwest of Giza. Researchers discovered it using cosmic rays.

Photo: ScanPyramids Mission / dpa

Pyramids are considered to be mysterious structures. Although they are constantly explored, there are always new (more…)

The Leverkusen motorway bridge may not even be used by light trucks anymore, the

  • Schiersteiner motorway bridge between Mainz and Wiesbaden 2015 was even closed for a few months. Bridges in Germany are partly in a bad condition. But not all. The TU Munich is now investigating why some old bridges survive modern truck traffic relatively well and others do not.
  • “There are many bridges with a calculated deficit, but you can not see any damage to the structures (more…)

    The highest mountain in the world, Mount Everest in the Himalayas in Nepal, is to be re-measured this year. Why? The mountain could have shifted because of the heavy earthquake in 2015 in Nepal. Also, the likelihood that its altitude has changed is large.

    Summit of Mount Everest, taken by a DLR motor glider in 2014, before the devastating 2015 earthquake. There is speculation since then whether the summit of the highest mountain in the world has dropped or even increased by a few centimeters.

    Summit of Mount Everest, taken by a DLR motor glider in 2014, before the devastating 2015 earthquake. whether the summit of the highest mountain in the world has dropped or even increased by a few centimeters.

    (more…)

    This is a nightmare for every ship crew: transmission damage at sea. It is not only dangerous if a giant tanker is left lying in a busy traffic channel, for example: towing is expensive and the cargo does not arrive on time. Soon there will be sensors that sit in the middle of the gearbox and pay attention.

    Container ship Hamburg Express in the Elbe: If such ships remain due to gearbox damage, this not only causes high costs. The ships also block shipping routes. Engineers are developing sensors that monitor the wear of gears and clutches directly in the transmission itself. Gearbox damage is thereby detected in good time.

    Container ship Hamburg Express in the Elbe: If such ships remain due to gearbox damage, this not only causes high costs. The ships also block shipping routes. (more…)

    What a nice Christmas present for Alma: The observatory in Chile has received so-called Band-5 receivers. It looks for weak signals from water in the Universe.

    This composite image shows a new Alma Band 5 image of the colliding galaxy system Arp 220 (in red) over an image of the Hubble Space Telescope (blue / green). With the newly installed Band-5 receivers Alma looks at a whole new part of this radio spectrum and improves the possibility of the telescope in the universe to search for water. This image is one of the first to use Band 5.

    This composite image shows a new Alma Band 5 image of the colliding galaxy system Arp 220 (in red) over an image of the Hubble Space Telescope ( blue green). With the newly installed Band-5 receivers Alma looks at a whole new part of this radio spectrum and improves the possibility of the telescope in the (more…)

    How do broken hair sound? The French cosmetics company L’Oreal has now found a way how fragile and damaged hair can be made audible as music. This year, the first devices will be introduced in hairdressing salons around the world. It’s the first electronic technique of its kind in hair cosmetics.

    Making hair sound: The French cosmetics company L'Oréal has developed a new technology in its Japanese research and development center the whole is scanned. Sensors collect the data into music in real-time based on algorithms. And this reports on the condition of the hair.

    Let hair sound: The French cosmetics company L’Oréal has developed a new technique in its Japanese research and development center in which the complete scan is made. Sensors (more…)