Tuesday, May 17, 2005

Researchers find way to produce very large diamonds very fast

A while back they discovered diamond stars, and now they're making them in blocks:

The standard growth rate is 100 micrometers per hour for the Carnegie process, but growth rates in excess of 300 micrometers per hour have been reached, and 1 millimeter per hour may be possible. With the colorless diamond produced at ever higher growth rate and low cost, large blocks of diamond should be available for a variety of applications. "The diamond age is upon us," concluded Hemley.

It will never be the same again.

Thursday, May 12, 2005

Beam Me to Mars :: Astrobiology Magazine :: Search for Life in the Universe

This is just so fiendish:

A typical Mars mission would begin as Earth and Mars are approaching the point of closest alignment as they progress in their orbits, with the Earth slightly behind Mars. A conventional rocket first launches the target spacecraft into orbit around Earth. The Magbeam station would fire a plasma beam at the target spacecraft for about four hours, giving it a boost toward Mars. The spacecraft coasts to Mars in about 50 days, after which another station in orbit around Mars fires a plasma beam at the spacecraft to slow it down.

The spacecraft goes into orbit around Mars and the astronauts descend to explore the surface. After 11 days, they launch to Mars orbit, where the Martian station fires its plasma beam again to accelerate the spacecraft toward Earth. After coasting toward Earth, the station in orbit around Earth fires its plasma beam at the spacecraft to capture it in Earth orbit.

And then onto Jupiter:

If the challenges can be overcome, the Magbeam system will offer several benefits: First, a fast trip to Mars will reduce the space radiation hazard to astronauts. High-speed particles from the Sun and interstellar space continually bombard any spacecraft traveling between planets. However, this space radiation can be deflected by planetary magnetic fields or absorbed by a planet's atmosphere. Getting astronauts quickly from one planet to another will reduce their exposure to space radiation. The high-speed makes Magbeam useful for missions beyond Mars as well, "We think this would be a good system for delivering payloads to Jupiter and beyond," said Winglee.

Friday, May 06, 2005

PhysOrg: Carnegie Mellon robot will run time trials to enter $2 million desert race

Just a reminder that this race is happening in October. I think my first post to this blog concerned this race (I seem to remember that the 'winner' of the race last year only managed something like 7km out of 150km...).

Wednesday, May 04, 2005

Economist.com | Cold fusion
Not yet a precursor to a starship engine, perhaps, but maybe an ancestor of Dr McCoy's portable diagnosis machine.

Creating fusion using a crystal. As opposed to, for instance, bubbles and rock and roll?