Yes, it could be destroying malaria will do only positive things, but if we release this vaccine into the wild and it proliferates, and the virus is no more, do we really know what will happen? Of course, I've never heard of a negative fallout from the elimination of smallpox, but who knows. We gotta be careful when we go about systematically eradicating something.

One of the reasons lane splitting on motorcycles has not been outlawed in California is because it reduces traffic. I always have to smile, a little bitterly, when I think about it. You see, I've heard the only reason it was allowed in the first place was because motorcycle police officers drove big air cooled bikes in the 60's and 70's, and needed to keep moving in traffic. The bitter part being regular riders on the same bikes didn't warrant notice, but the police officers did. As for clumping, I am not sure why it happens, but I rarely get stuck in clumps. You gotta either travel slightly faster or slightly slower than the clumps, and if the road isn't full of people you'll spend most of the drive blessedly alone.

This is actually really interesting! Think about it. We've been limited to solar cells for a long time for producing electricity, and those have limitations we are constantly struggling against. But... Now, you can make a simple isolated enviroment consisting of water and salt. Design it such that fresh water runs down from a resivoir into a lower resivoir with salt. Expose the lower resivoir to sunlight, and use the greenhouse effect to speed up the evaporation of the water. Direct the vapors up to the upper reservoir, where they precipitate out, and flow back down! Thus, we generate electricity and use the sun to separate the two components to repeat the cycle. (plus if you want, you can capture the heat from the condenser, for even more energy) Not something you could put in your car, but on a large scale I bet this could work. Similar to large steam powered plants.

I still am not sure about that cows having magnetic sense thing. Birds I can accept, but the very first thoughts to cross my mind when I heard about cows:

1: Grazing lands are usually lands people don't want to live in

2: The southern face is more livable and hospitable.

Those two facts suggest to me that it's possible on a global scale cows are mostly on a certain face of a hill. Supposing most cows are on the southern slope, could it not be possible they simply elect to face uphill?

I'm not saying my speculations are any kind of proof, that they are well supported, or anything else like that. Only reasons the scientists may not have found the true cause. As they say, correlation does not imply causation.