It's their phone, their applications.
If I buy the phone, I expect to own it. Even if it is on a rent-to-buy plan like the phone company subsidized contracts, I should have more rights to the phone than Apple does. If I have a phone that I have bought, and someone else has a program that he has made for it, I do not see any moral reason by which a third party, Apple, can restrict my access to my own phone.
The lack of lithium in the universe is one of the great unsolved mysteries in astronomy.
In solar fusion, it is rather difficult to form Li from H and He. The "normal" form of He is He-4. If H-1 is added to this, Li-5 is formed. However, Li-5 is not stable, and decays to He-5, which decays to He-4. Therefore, it is not possible to form stable Li using the most abundant isotopes of H and He.
Heavier elements are usually formed by combining multiple He-4 nuclei. This can give Be-8, C-12, O-16, and so on. These elements and isotopes show correspondingly high abundances in the universe as a whole.
In order to form any isotope of Li, the Li-5 step must be completely avoided. Instead of adding H-1 to He-4, either H-2 or H-3 must be added, forming stable Li-6 or Li-7. The H-2 and H-3 are present in much lower concentrations than H-1, and so we are much less likely for these to interact with He-4. There is some interaction, which is where the current Li comes from.
Not that the actual Video Professor teaching tool is a scam.
About two-thirds of the way down in the article:
Another scam: Video Professor. Users are offered in game currency if they sign up to receive a free learning CD from Video Professor. The user is told they pay nothing except a $10 shipping charge. But the fine print, on a different page from checkout, tells them they are really getting a whole set of CDs and will be billed $189.95 unless they return them. Most users never return them because they don't know about the extra charge. Woot. Again, sites like Offerpal and SuperRewards flow these offers through to game developers. See here for more on the Video Professor scam.
So, Video Professor is a scam, but it's a minor point in the article.
HELP!!!! I'm being held prisoner in /usr/games/lib!