Mathematicians say that they have solved a major, decades-old problem in geometry: how to reconstruct the inner structure of a mystery object ‘X’ from knowing only how fast waves travel between any two points on its boundary.
The work has implications in real-world situations, such as for geophysicists who use seismic waves to analyse the structure of Earth’s interior.
“Without destroying ‘X’, can we figure out what’s inside?” asked mathematician András Vasy of Stanford University in California, when he presented the work in a talk at University College London (UCL) last week. “One way to do it is to send waves through it,” he said, and measure their properties.
Now, Vasy and two of his collaborators say that they have proved that this information alone is sufficient to reveal an object’s internal structure.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — Electronics manufacturing is a burger of complexity
Wearables — Battery wash cycle
Electronics — How to make your own magnetic field probe!
Biohacking — The State of DNA Analysis in Three Mindmaps
Python for Microcontrollers — Getting Started with Adafruit Circuit Playground Express
No comments yet.
Sorry, the comment form is closed at this time.