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.
Adafruit is on Mastodon, join in! adafruit.com/mastodon
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — Chip inventories rise as demand falls
Wearables — Go insane with a membrane (button or keypad)
Electronics — Shift away from basic arithmetic
Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython 8.0 RC 1 Out, Board Guides, and Much More! #CircuitPython #Python @ThePSF @micropython @Raspberry_Pi
Adafruit IoT Monthly — Cat Doorbell, Deep Algae Bloom Detector, and more!
Microsoft MakeCode — MakeCode Thank You!
EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 02/01/23 Featuring Adafruit Floppy FeatherWing with 34-Pin IDC Connector!
No comments yet.
Sorry, the comment form is closed at this time.