fresh bytes
Subscribe Now

Scientists are about to change what a kilogram is

If Jon Pratt were an international criminal mastermind, he would fly to Paris, don an all-black suit and ski mask and sneak into the elegant French baroque building that serves as headquarters for the Bureau International des Poids et Mesures.

His mission: “To set the whole world’s system of mass into disarray,” Pratt said. “This is my dastardly plan.”

In this hypothetical scenario, Pratt slips past the security guards, disables the alarm system and picks the lock on a temperature-controlled, airtight safe deep in the bowels of the BIPM. Inside, he finds his target: a small platinum and iridium cylinder weighing exactly one kilogram. It’s the kilogram, crafted in 1889 to serve as the single standard by which all other kilograms are measured. People call it “le grand K.”

“I’d take out a nail file, and I’d scratch a little bit off,” Pratt said. Then he’d slip back into the night. “And the next time they take the thing out” (to test the accuracy of the world’s other kilograms) “everything else will be wrong.”

Continue reading at The Washington Post

Leave a Reply

featured blogs
Jan 21, 2022
Here are a few teasers for what you'll find in this week's round-up of CFD news and notes. How AI can be trained to identify more objects than are in its learning dataset. Will GPUs really... [[ Click on the title to access the full blog on the Cadence Community si...
Jan 20, 2022
High performance computing continues to expand & evolve; our team shares their 2022 HPC predictions including new HPC applications and processor architectures. The post The Future of High-Performance Computing (HPC): Key Predictions for 2022 appeared first on From Silico...
Jan 20, 2022
As Josh Wardle famously said about his creation: "It's not trying to do anything shady with your data or your eyeballs ... It's just a game that's fun.'...

featured video

AI SoC Chats: Understanding Compute Needs for AI SoCs

Sponsored by Synopsys

Will your next system require high performance AI? Learn what the latest systems are using for computation, including AI math, floating point and dot product hardware, and processor IP.

Click here for more information about DesignWare IP for Amazing AI

featured paper

MAX22005 Universal Analog Input Enables Flexible Industrial Control Systems

Sponsored by Analog Devices

This application note provides information to help system engineers develop extremely precise, highly configurable, multi-channel industrial analog input front-ends by utilizing the MAX22005.

Click here to read more

featured chalk talk

WiFi 6 & 6E: Strengthening Smart Home Enablement

Sponsored by Mouser Electronics and Qorvo

Demands on WiFi are growing exponentially, and our aging standards and technology are struggling to keep up. Luckily, WiFi 6 and 6E represent a leap in WiFi capabilities for our systems. In this episode of Chalk Talk, Amelia Dalton chats with Tony Testa of Qorvo about the ins and outs of WiFi 6 and 6E with their increased speed, capacity, and efficiency.

Click here for more information about Qorvo Wi-Fi® 6 Solution