Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In particle physics, this inequality permits a qualitative understanding of virtual particles which carry momentum, exchange by which and with real particles, is responsible for the creation of all known fundamental forces (more accurately known as fundamental interactions). Virtual photons (which are simply lowest quantum mechanical energy state of photons) are also responsible for electrostatic interaction between electric charges (which results in Coulomb law), for spontaneous radiative decay of exited atomic and nuclear states, for the Casimir force, for van der Waals bond forces and some other observable phenomena.
What results in Casimir law?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
For all iPods released in 2006 and earlier, some equalizer (EQ) sound settings would distort the bass sound far too easily, even on undemanding songs. This would happen for EQ settings like R&B, Rock, Acoustic, and Bass Booster, because the equalizer amplified the digital audio level beyond the software's limit, causing distortion (clipping) on bass instruments.
What acoustic element could be distorted by different audio settings in iPods prior to 2007?
A: Bass

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
San Diego is one of the top-ten best climates in the Farmers' Almanac and is one of the two best summer climates in America as scored by The Weather Channel. Under the KoppenGeiger climate classification system, the San Diego area has been variously categorized as having either a semi-arid climate (BSh in the original classification and BSkn in modified Koppen classification) or a Mediterranean climate (Csa and Csb). San Diego's climate is characterized by warm, dry summers and mild winters with most of the annual precipitation falling between December and March. The city has a mild climate year-round, with an average of 201 days above 70 F (21 C) and low rainfall (913 inches [230330 mm] annually). Dewpoints in the summer months range from 57.0 F (13.9 C) to 62.4 F (16.9 C).
How many days of the year does San Diego typically experience temperatures above 70 degrees Fahrenheit ?
A: 201 days

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 1988, only 60,000 computers were connected to the Internet, and most were mainframes, minicomputers and professional workstations. On November 2, 1988, many started to slow down, because they were running a malicious code that demanded processor time and that spread itself to other computers the first internet "computer worm". The software was traced back to 23-year-old Cornell University graduate student Robert Tappan Morris, Jr. who said 'he wanted to count how many machines were connected to the Internet'.
Where was the computer worm created?
A:
unanswerable