Question: Another objection is that it is not always possible to demonstrate falsehood definitively, especially if one is using statistical criteria to evaluate a null hypothesis. More generally it is not always clear, if evidence contradicts a hypothesis, that this is a sign of flaws in the hypothesis rather than of flaws in the evidence. However, this is a misunderstanding of what Popper's philosophy of science sets out to do. Rather than offering a set of instructions that merely need to be followed diligently to achieve science, Popper makes it clear in The Logic of Scientific Discovery that his belief is that the resolution of conflicts between hypotheses and observations can only be a matter of the collective judgment of scientists, in each individual case.
Is there an answer to this question: What kind of criteria frequently used in science complicates the definitiveness of some hypotheses' falsification?

Answer: statistical


Question: High-power LEDs (HP-LEDs) or high-output LEDs (HO-LEDs) can be driven at currents from hundreds of mA to more than an ampere, compared with the tens of mA for other LEDs. Some can emit over a thousand lumens. LED power densities up to 300 W/cm2 have been achieved. Since overheating is destructive, the HP-LEDs must be mounted on a heat sink to allow for heat dissipation. If the heat from a HP-LED is not removed, the device will fail in seconds. One HP-LED can often replace an incandescent bulb in a flashlight, or be set in an array to form a powerful LED lamp.
Is there an answer to this question: Why must High-power LEDs be mounted on a heat sink?

Answer: to allow for heat dissipation


Question: On an international level the German DIN 4512 system has been effectively superseded in the 1980s by ISO 6:1974, ISO 2240:1982, and ISO 5800:1979 where the same sensitivity is written in linear and logarithmic form as "ISO 100/21°" (now again with degree symbol). These ISO standards were subsequently adopted by DIN as well. Finally, the latest DIN 4512 revisions were replaced by corresponding ISO standards, DIN 4512-1:1993-05 by DIN ISO 6:1996-02 in September 2000, DIN 4512-4:1985-08 by DIN ISO 2240:1998-06 and DIN 4512-5:1990-11 by DIN ISO 5800:1998-06 both in July 2002.
Is there an answer to this question: What did the German DIN 4512 supersede?

Answer: unanswerable


Question: The City of Charleston Police Department, with a total of 452 sworn officers, 137 civilians, and 27 reserve police officers, is South Carolina's largest police department. Their procedures on cracking down on drug use and gang violence in the city are used as models to other cities to do the same.[citation needed] According to the final 2005 FBI Crime Reports, Charleston crime level is worse than the national average in almost every major category. Greg Mullen, the former Deputy Chief of the Virginia Beach, Virginia Police Department, serves as the current Chief of the Charleston Police Department. The former Charleston police chief was Reuben Greenberg, who resigned August 12, 2005. Greenberg was credited with creating a polite police force that kept police brutality well in check, even as it developed a visible presence in community policing and a significant reduction in crime rates.
Is there an answer to this question: How many civilians serve on the Charleston Police Department?

Answer:
137