Wikipedia:Reference desk/Archives/Science/February 2019

= February 1 = Reference_desk/Archives/Science/2019 February 1


 * 1) Butterfly size

= February 2 = Reference_desk/Archives/Science/2019 February 2


 * 1) Exact frequencies for hydroxyl lines (18 cm band)
 * 2) Enzyme workload and its performance.

= February 3 = Reference_desk/Archives/Science/2019 February 3


 * 1) "-Idine" Suffix
 * 2) why the  comet 67P/ Churyumov–Gerasimenko has bottle neck?

= February 4 = Reference_desk/Archives/Science/2019 February 4


 * 1) Nasal septum deviation

= February 5 = Reference_desk/Archives/Science/2019 February 5


 * 1) Body System
 * 2) Why isn't low self-esteem considered a mental illness?
 * 3) Magnetic field cancellation material

= February 6 = Reference_desk/Archives/Science/2019 February 6


 * 1) Plumbing problem
 * 2) Inside of cat mouth color

= February 7 = Reference_desk/Archives/Science/2019 February 7


 * 1) What happens when you fall asleep in a dream?
 * 2) Shattering window in space

= February 8 = Reference_desk/Archives/Science/2019 February 8


 * 1) Voyager
 * 2) Aerographite balloon
 * 3) Nucleation theory of Liesegang rings

= February 9 = Reference_desk/Archives/Science/2019 February 9


 * 1) Arrow of Time
 * 2) Can some people never do backflips, front flips, or handstands?
 * 3) Human urine by gender.

= February 10 = Reference_desk/Archives/Science/2019 February 10


 * 1) Will it ever be possible to invent a time machine?
 * 2) Why absorbance is measured with Arbitrary Units
 * 3) 2009 satellite collision
 * 4) Elimination of the air travel

= February 11 = Reference_desk/Archives/Science/2019 February 11


 * 1) Dehumidifying ability of these new-fangled inverter air conditioners
 * 2) Why do galaxies collide?

= February 12 = Reference_desk/Archives/Science/2019 February 12


 * 1) Could it be a biological creature than lay eggs but it soesn't have as sexual reproduction?
 * 2) Many worlds interpretation

= February 13 = Reference_desk/Archives/Science/2019 February 13


 * 1) Proper distance along a path (formula dimension ?)
 * 2) Did the Southern Hemisphere ever have a boreal forest/taiga?
 * 3) Detecting sources of wave function collapse

= February 14 = Reference_desk/Archives/Science/2019 February 14


 * 1) Aluminum luggage and laptops through x-ray
 * 2) Matter anti-matter annihilation

= February 15 = Reference_desk/Archives/Science/2019 February 15


 * 1) Geology - Htee Pwint Kan Umbrella Pond
 * 2) Upper bound on heat loss through an open door?

= February 16 = Reference_desk/Archives/Science/2019 February 16


 * 1) Hippocrates: "A person who has an injury in the back of the hand or the back of the leg will die in 12 days"
 * 2) Leeches

= February 17 = Reference_desk/Archives/Science/2019 February 17


 * 1) Do those rockets abandoned in geostationary transfer orbits ever reenter decades later without ever reaching low eccentricity?
 * 2) Occupational hazard?
 * 3) Video defect
 * 4) Binoculars vs Nikon P1000
 * 5) Slow-close toilet seat

= February 18 = Reference_desk/Archives/Science/2019 February 18


 * 1) Mass of nucleons
 * 2) Foreskin joining/growing together with the glans penis.
 * 3) Heating Oil Consumption

= February 19 = Reference_desk/Archives/Science/2019 February 19


 * 1) De Broglie Wavelengths of particles
 * 2) Germ theory
 * 3) Jordan canonical form

= February 20 = Reference_desk/Archives/Science/2019 February 20


 * 1) Balance Equations
 * 2) Why does only human being cuts off the umbilical cord?
 * 3) Mountain view (not in California)
 * 4) What could happen when one doesn't tie the umbilical cord after cutting off?

= February 21 = Reference_desk/Archives/Science/2019 February 21


 * 1) Carbon 14 beta decay
 * 2) "Mamankanois"
 * 3) Stopping the bleeding using absorbent dressing
 * 4) Frequency of the sound of water falling
 * 5) Pattern in digital clock deviations
 * 6) Megachile pluto - Giant Bee

= February 22 = Reference_desk/Archives/Science/2019 February 22


 * 1) Consciousness as information?
 * 2) Term for plants with both sexual and asexual reproduction, and sexual always preferred?

= February 23 = Reference_desk/Archives/Science/2019 February 23


 * 1) European Stag Beetle Comment

= February 24 = Reference_desk/Archives/Science/2019 February 24


 * 1) Jenny (not Lind)
 * 2) Subspecies and gender identification for two images (WP:FP related)
 * 3) Smallpox infection and eradication
 * 4) Is there a place in the world in which in July or August it's colder than its temperature in other times?

= February 25 = Reference_desk/Archives/Science/2019 February 25


 * 1) Are there any doctors ...
 * 2) Anatomy of rental electric scooters

= February 26 = Reference_desk/Archives/Science/2019 February 26


 * 1) Is there a scientific basis for the claim that the 3rd day after an injury is the most dangerous or painful?
 * 2) guide us about the black holes with standard references
 * 3) Calculations of observable universe

= February 27 = Reference_desk/Archives/Science/2019 February 27


 * 1) is climate change actually this impending catastrophe that some people say?

= February 28 = Reference_desk/Archives/Science/2019 February 28


 * 1) Semi-empirical mass equation