Kerry "has emerged in the past few years as an important envoy for Afghanistan and Pakistan during times of crisis," a Washington Post report stated in May 2011, as Kerry undertook another trip to the two countries. The killing of Osama bin Laden "has generated perhaps the most important crossroads yet," the report continued, as the senator spoke at a press conference and prepared to fly from Kabul to Pakistan. Among matters discussed during the May visit to Pakistan, under the general rubric of "recalibrating" the bilateral relationship, Kerry sought and retrieved from the Pakistanis the tail-section of the U.S. helicopter which had had to be abandoned at Abbottabad during the bin Laden strike. In 2013, Kerry met with Pakistan's army chief Gen. Ashfaq Parvez Kayani to discuss the peace process with the Taliban in Afghanistan.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did the Washington Post say Kerry was important envoy?
Ah, so.. May 2011

In 1906, the tungsten filament was introduced. Tungsten metal was initially not available in a form that allowed it to be drawn into fine wires. Filaments made from sintered tungsten powder were quite fragile. By 1910, a process was developed by William D. Coolidge at General Electric for production of a ductile form of tungsten. The process required pressing tungsten powder into bars, then several steps of sintering, swaging, and then wire drawing. It was found that very pure tungsten formed filaments that sagged in use, and that a very small "doping" treatment with potassium, silicon, and aluminium oxides at the level of a few hundred parts per million greatly improved the life and durability of the tungsten filaments.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who did not develop the ductile form of tungsten?
Ah, so.. unanswerable

On the shores of the strait, in 1701, the French officer Antoine de la Mothe Cadillac, along with fifty-one French people and French Canadians, founded a settlement called Fort Pontchartrain du Détroit, naming it after Louis Phélypeaux, comte de Pontchartrain, Minister of Marine under Louis XIV. France offered free land to colonists to attract families to Detroit; when it reached a total population of 800 in 1765, it was the largest city between Montreal and New Orleans, both also French settlements. By 1773, the population of Detroit was 1,400. By 1778, its population was up to 2,144 and it was the third-largest city in the Province of Quebec.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was Detroit's population in 1773?
Ah, so..
1,400