tingilinde

kenn borek air

Not a lot of people realize a good deal of scientific travel in the Arctic and Antarctic uses an unusual little Canadian airline that contracts such travel - Kenn Borek Air Ltd.  

The first flights to the South Pole after the Winter season start about now..  the airline's workhorses are modified DC-3s with turbine engines, but they use Twin Otters and other equipment.  It turns out they've had their share of drama

sully on the 737max

America's most famous pilot weighs in.

 

 

california and emission targets

Californians drive away from meeting emission targets.

 

guoliang tunnel

A road with a view.

and a short video

 

 

 

maxwell

What a great name for the latest NASA x-plane.  The X-57 Maxwell is an all-electric research vehicle.

 

 

reducing road carnage

David Levinson studies traffic for a living and has written some terrific books on the subject.  Here he outlines some ways to reduce death and injuries on the highways..   Many sensible points, but some stand a snowball's chance in hell is the US.

 

 

cultural and management issues at boeing

The New Republic looks at the 737 Max through the lens of changes in management and engineering cultures.

a tip of the hat to Dewayne

 

 

on redesigning roads

A crowd funded video on making roadways safer

Stop Killing our Children from ETA on Vimeo.

progress the republicans are fighting

What California did .. (via The Washington Post)

 

 

population density and urban public transit

Some interesting maps. 

 

it is noted that:

A minimum density of about 11,5 thousand people/sq km is required before heavy rail (subway) development makes economic reason (red and pink area on the map). The density threshold at which light rail is cost-effective is about 7 thousand people/sq km (dark orange color).

 

These are rough figures that are culturally and location dependent and change over time. Still, they're roughly right (I wouldn't state 11.5k people/km² as that implies accuracy)