13 Things that do not make sense

[app103]

Older but interesting:

http://www.newscient...ns?id=mg18524911.600

1. The placebo effect
2. The horizon problem
3. Ultra-energetic cosmic rays
4. Belfast homeopathy results
5. Dark matter
6. Viking's methane
7. Tetraneutrons
8. The Pioneer anomaly
9. Dark energy
10. The Kuiper cliff
11. The Wow signal
12. Not-so-constant constants
13. Cold fusion