A CD is read by focusing a 780 nm wavelength (near infrared) semiconductor laser housed within the CD player, through the bottom of the polycarbonate layer. The change in height between pits and lands results in a difference in the way the light is reflected. By measuring the intensity change with a photodiode, the data can be read from the disc. In order to accommodate the spiral pattern of data, the semiconductor laser is placed on a swing arm within the disc tray of any CD player. This swing arm allows the laser to read information from the centre to the edge of a disc, without having to interrupt the spinning of the disc itself.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many layers of polycarbonate are there?
Ah, so.. unanswerable

Canada allows nonprofits to be incorporated or unincorporated. Nonprofits may incorporate either federally, under Part II of the Canada Business Corporations Act or under provincial legislation. Many of the governing Acts for Canadian nonprofits date to the early 1900s, meaning that nonprofit legislation has not kept pace with legislation that governs for-profit corporations; particularly with regards to corporate governance. Federal, and in some provinces (such as Ontario), incorporation is by way of Letters Patent, and any change to the Letters Patent (even a simple name change) requires formal approval by the appropriate government, as do by-law changes. Other provinces (such as Alberta) permit incorporation as of right, by the filing of Articles of Incorporation or Articles of Association.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What kind of approval do for-profit corporations need to incorporate as of right in Ontario?
Ah, so.. unanswerable

Scholar Patrick Chura, who suggests Emmett Till was a model for Tom Robinson, enumerates the injustices endured by the fictional Tom that Till also faced. Chura notes the icon of the black rapist causing harm to the representation of the "mythologized vulnerable and sacred Southern womanhood". Any transgressions by black males that merely hinted at sexual contact with white females during the time the novel was set often resulted in a punishment of death for the accused. Tom Robinson's trial was juried by poor white farmers who convicted him despite overwhelming evidence of his innocence, as more educated and moderate white townspeople supported the jury's decision. Furthermore, the victim of racial injustice in To Kill a Mockingbird was physically impaired, which made him unable to commit the act he was accused of, but also crippled him in other ways. Roslyn Siegel includes Tom Robinson as an example of the recurring motif among white Southern writers of the black man as "stupid, pathetic, defenseless, and dependent upon the fair dealing of the whites, rather than his own intelligence to save him". Although Tom is spared from being lynched, he is killed with excessive violence during an attempted escape from prison, shot seventeen times.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): At the time of the novel's setting, what punishment was often received by black males for percieved sexual contact with a white woman?
Ah, so..
death