Tuesday, August 26, 2014

First four attempts at rocketry videos

Clearly the Draco is perfect for this purpose and the 38mm Thunderbolt is not! Acme fin cans are fun because they often introduce a bit of spin, and there is nothing wrong with that in a non-video rocket. All of these videos were taken with a very cheap (ca. $15) spy camera from ebay. I have yet to invest more money in videos, but eventually it would be nice to get a good camera like a GoPro Hero or the like. The Draco is rather limited as to altitude; even a 29mm I motor won't get it much past 3,000 feet. That is one benefit to using the Thunderbolt; 38mm J motors and flights beyond 5,000 feet.

In any event, these are tentative first steps into video rocketry. If you have any tips or videos of your own, share in the comments.

Anchor dragged, dropped, and recovered

The top image shows a sonar survey, anchor can be seen at lower left.

Wednesday, August 20, 2014

2000 page views per day!

As this somewhat crappy screen shot shows, this blog has quite unexpectedly hit a pace of nearly 2,000 page views per day. Even with a more limited post rate, the number of page views has exploded to double the previous records.

Monday, August 18, 2014

CSXT makes another space shot, this time with footage!

See the really great footage of space as well as some nice use of a yo-yo despin mechanism and possibly the moon?

Friday, August 15, 2014

Comet 67P/Churyumov-Gerasimenko

Comet 67P/Churyumov-Gerasimenko imaged by Rosetta's OSIRIS narrow angle camera on 7 August from a distance of 104 km.

While the comet’s head (in the top half of the image) is covered with parallel linear features, the neck displays scattered boulders on a smooth underground. In comparison, the comet’s body (lower half of the image) seems to have much more jagged features.