Doctor Who is a British science fiction television program. The Doctor, as he is known, is the main character. He is a Time Lord who travels through time and space in his time machine, called the TARDIS.

One of the key elements in Doctor Who is the Doctor’s companion. Out of all of the Doctor Who Girls, Rose (one of the most recent) was the first to have spawned an actual relationship with the Doctor beyond the companionship usually present. This image depicts the Doctor Who girls, emphasising the unusually strange affection Rose has with the Doctor.

I don’t by any means know all the details behind the construction of this paintball sentry gun, nor do I know exactly you’d make you own paintball sentry gun. However, if you want to see a demonstration of an awesome paintball sentry gun, then this is the place. If I could, I’d pay this guy to make me an autonomous paintball gun like this. See the video below:

Remember that paintballing (is that even a word?) can be very dangerous without safety equipment. The guy on the video gets shot at several times. If a paintball from the sentry gun were to have landed directly on his eyes, and he were not wearing the safety helmet he could have easily been blinded.

Ever wondered what the inside of an ant colony looks like?

No, neither have I. However, this video is fascinating. It is mind-boggling to think that creatures we deem so limited in intelligence could built such an incredible subterranean city, with a full gas and heat ventilation system. Incredible.

For a view of the ant city in its full glory, skip to about half-way through the clip.