tingilinde

ingenuity at 40!

The little helicopter that could - 40 flights now (scroll down for the flight log)

 

spiral from a falcon 9 launch

steve strogatz

He's interested in the dynamics of non-linear systems..  most famously a paper on cricket choruses that gave the mathematical foundation for the small world problem .. six degrees of separation for example.  Here's a fun public talk on synchronization 

 

Around the same time he gave a talk on the dynamics of a long friendship he had shared with his high school math teacher.  He posted a bit of it online and has written a book on it.

aero

Pushing the limits on a practical car.

snip

...

Mercedes-Benz, which has produced its own stately but wasteful machines over the years, has a different view of the future. Called the Vision EQXX, it’s an electric four-door-sedan concept that employs a radically efficient aerodynamic form. In recognition that the energy of current electric batteries quickly depletes and takes a long time to replenish, there’s no room to sacrifice slickness to indulge style. With a highly efficient drivetrain and a light curb weight (for an EV), the EQXX managed a trip from Stuttgart, Germany, to Silverstone, England, fully 747 miles, on a single charge. Its absurdly low 0.17 drag coefficient was critical in making that happen.

...

 

 

taking better smartphone photos

Use the RAW file format and editing software.  If you're buying a new smartphone, you may want to get as much memory as you can afford.

 

 

computer fan c-r boxes

A few experimenters are noting Corsi-Rosenthal boxes made with multiple computer fans are quieter, per unit of air moved, the the conventional C-R does.  Important in schools and other settings.  An issue is cost.  Here's a place that offers kits and prebuilt units.

 

building a rather impressive movie camea

a tip of the hat to Greg

ev specific tires

Important note if you have an electric car.

snip

...

Yes, tires intended for conventional internal combustion engine (ICE) vehicles will fit your EV car's wheels, but using them in this way would be a bad idea. Tires meant for EVs are engineered to withstand the additional weight, dynamic loading, and tractive demands of an EV, among other things. Using non-EV tires will likely result in far more accelerated wear, heat-related issues, and the potential for wheelspin from a rest, which, even with traction control, could conceivably induce a loss of directional stability.

...

 

 

from earth to moon

There are a number of interesting strategies - a tip of the hat to Bart

the symbol of a new agency

 

the eagle is in Dirac notation