The Big Pit National Coal Mining Museum has installed 200 solar panels (Wikicommons)Not everyone is sold on green energy. But one recent convert is an institution dedicated to the legacy of fossil fuels: England’s Big Pit National Coal Museum has installed 200 solar panels to help offset energy costs.

"Coal is such an important part of Wales’ heritage, and yet green energy will play a major part in its future. A solar powered coal-mining museum is a fantastic way to celebrate this national journey," Peter Walker, the museum's manager told Renewable Energy World.

"But it’s far from just symbolic—the museum will benefit from huge reductions in energy bills and a solid return from the feed-in tariff.”

The new solar panels will reportedly save the museum approximately $650,000 over the next 25 years, minus the $115,000 cost of installation.

The museum site first opened operations as a coalmine back in 1810 and officially ceased production in 1980. It reached its commercial peak in 1929, employing nearly 1,400 local residents from Wales. It first opened to visitors in 1983

In this video, a falcon feeds scraps of meat to a patiently waiting dog. Both the dog and the falcon appear to be pets, as they are both on leashes, and you can hear people talking in the background.

So what has compelled the falcon to share a meal with another species? Some readers have speculated that both animals may be used to hunt with their human owners and could have formed a bond over that time. Also, the falcon does not appear to be particularly hungry, meaning it has extra food and is falling back on maternal instincts.

One reader guessed that the falcon is a gyrfalcon and that the dog is a breed of saluki, both of which are commonly used for hunting.

However, other viewers have speculated that the falcon is not really feeding the dog at all, saying that the falcon seems to be accidentally dropping the scraps of food but is not threatened by the dog and therefore isn’t putting up a fight when some scraps of meat drop to the ground.

Still, there appears to be some cooperation

The Dragonfly robot in flight (Indiegogo)The Air Force has spent more than $1 million to help develop a small and versatile robot dragonfly. But in a move to raise funds for the Dragonfly, the developers are offering the public the chance to own their own flying robot Dragonfly for $119.

“This means you can do amazing aerial photography, spy on people, secure your house or use it as the next-gen gaming platform,” says Emanuel Jones, co-founder of TechJect, in a promotional video for the project on the Indiegogo website.

Jones and project founder Jayant Ratti started TechJect after first developing the Dragonfly at the Georgia Institute of Technology with a grant from the U.S. Air Force Office of Scientific Research.

They say the current prototype weighs less than an ounce, or the weight of one AA battery. And if you believe the project’s developers, it offers several more practical uses than your typical “one-trick pony” aerial drone, including a smaller frame and more powerful battery life.

“This could be the next generation