Wednesday, January 28, 2015

What a difference 150,000 km makes!

NASA / JPL / UCLA / MPS / DLR / IDA / Emily Lakdawalla

Dawn's view of Ceres on January 25, 2015 (animation)

This animation is composed of 20 images gathered over a period of about an hour for optical navigation purposes. Dawn was 237,000 kilometers from Ceres at the time.

Thursday, January 15, 2015

Google got some 'splainin' to do.

These are the estimated earnings over the course of 3 hours today. It started out with a respectable $1.55 for the morning, and then faded fast. What is the deal? This is not the first time, in recent days, where moderate initial earnings dropped to nearly nothing.

missile gif

Tuesday, January 13, 2015

Saturday, January 3, 2015

Rocket powered bike hits 333 kph

"On November 7th of 2014, on the famous Circuit Paul Ricard located at Le Castellet in South of France, François Gissy has reached an incredible speed of 333 km/h on the rocket-propelled bicycle designed by his friend Arnold Neracher."

This looks like a hydrogen peroxide engine, a good choice for such a task as it is relatively safe and still powerful enough to get the job done. There is really no limit to how fast a rocket powered bike could go, supersonic runs are probably possible.

A significantly faster rocket bike at Bonneville can be seen here:

3D Moon