Category Archives: Science and Technology

Video: Dr. Gerald Cleaver on Icarus Interstellar, warp drive, and matter/antimatter propulsion

Project Persephone is an effort by the Icarus Interstellar group to design a workable generation ship for making a trip to a distant star: Project Persphone: British Scientists Building ‘Living Space Ark’ To Save Humanity – Huffington Post

===

Prof. Gerald Cleaver is a noted theoretical physicist in string theory at Baylor University and a member of the Icarus Interstellar team. In this video of a luncheon presentation at NASA JSC,  he gives a fascinating talk (aimed at a general audience) about the Icarus group, about interstellar flight, the possibilities of making Alcubeirre Warp Drive a reality (he says string theory is key!), and a couple of ways to create large amounts of antimatter for propulsion :

Sci-Tech video: Michel Laberge explains General Fusion

Michel Laberge, the founder of the Canadian General Fusion project (see earlier post), describes in a TED talk their route to nuclear fusion power : Michel Laberge: How synchronized hammer strikes could generate nuclear fusion – YouTube (via Next Big Future)

Video: A Dragon delivers a vege garden to the ISS

A small vegetable garden experiment was delivered to the Int. Space Station on Sunday by a SpaceX Dragon spacecraft:

Update on the mystery of the skydiver and the meteorite

Earlier in the month I posted about a Skydiver imaging a meteoroid flying past him during jump. However, analysis of the images by astronomer Phil Plait made it more likely it was just a rock that had gotten bound up in the parachute during its packing and had fallen out when the chute unfurled.

Now comes a much more detailed study that confirms the latter conclusion: Forensic Ballistics: How Apollo 12 Helped Solve the Skydiver Meteorite Mystery – The Planetary Society

Space cherry tree couldn’t wait to blossom

Space had a positive effect on one particular cherry tree seed taken to space in 2008 by Japanese astronaut Koichi Wakata to the International Space Station, where they stayed for 8 months till returned to Japan : Space sakura have returned to Earth with cherry blossom superpowers – RocketNews24.

Local botanical groups were only able to successfully breed descendants from the tree through grafting, as none of the seeds taken from it have sprouted after being sewn. Well, all except one, a seed from the Chujohime Seiganzakura that made the trip to space and back. Not only has the space sakura grown to four meters (13 feet, 1 inch) in height, flowers recently bloomed on the tree.

Generally, sakura blooming in the spring don’t shock anyone, given that all of Japan anxiously waits for the arrival of the cherry blossoms every year. The four-year-old Gifu space sakura managed to catch scientists and caretakers off guard, though, as ordinarily cherry trees of this type don’t produce blossoms until they reach a decade or so in age.

And

Scientists aren’t exactly sure why the trees in question are exhibiting such extraordinarily quick development. One researcher was quoted as saying that while it’s yet to be confirmed, they have to at least acknowledge the possibility that the environmental influences of space have somehow altered the plants’ DNA or stimulated their cells in as yet undetected ways, giving them capabilities beyond that of their earthbound brethren.

[]

Credits: karapaia.livedoor.biz

I can’t help but point out that  Zero Gravity Solutions Inc is building a business on the effects of microgravity on stem cells (pun intended).