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What is the SAT? - All About SAT Test | Kaplan Test Prep ;;;
tags: What is the SAT? - All About SAT Test | Kaplan Prep || number of questions vs versus time competitor ;;;
What  is  the  SAT?  -  All  About  SAT  Test  |  Kaplan  Prep  ||  number  of  questions  vs  versus  time  competitor 
6 hours ago by neerajsinghvns
Why Standard Time is better – Michael Herf – Medium
“From Jackie Lane and colleagues at Harvard, we learned that about a quarter of the population has a gene that predisposes them to Type 2 Diabetes, but only when they wake up early. When allowed to sleep past 7 AM, these people have a normal risk, and when woken up early, they have an 80% higher rate of diabetes. This group simply needs more sleep, and changing the clocks by an hour is no good for them.”
diabetes  daylightsavingtime  standardtime  time  2019  via:herf  dst 
16 hours ago by handcoding
There Will Be a Super Worm Moon on the Spring Equinox. Here's How to See It
A supermoon — which typically happens two to three times per year — is a full moon that occurs at the moon’s perigee, the point in the moon’s orbit when it is closest to the earth, making it appear bigger and brighter in the sky. Because the moon’s orbit is shaped more like an egg, as opposed to a perfect circle. (Conversely, the apogee is the point when the moon is farthest from earth.) is relatively rare for a supermoon to coincide with the Spring Equinox. The last time the cosmic alignment happened was in 2000, and it won’t occur again until 2038.The “super worm moon” is the last supermoon of 2019. The next supermoons are set to light up the skies on March 9 and April 8, 2020.
Time  astronomy  phenomenon 
17 hours ago by thomas.kochi
The Paris Pneumatic Clock Network
Crazy 19th century system for distributing time
time  paris  france  clocks  via:hackernews  tootme 
20 hours ago by nelson
The Paris Pneumatic Clock Network
In 1877 Carl Albert Mayrhofer set up a pneumatic clock network in Vienna; he was granted US patent 215,381 in May 1879, assigning it to the Austrian engineer Viktor Antoine Popp and his co-worker Resch. In 1879 Popp & Resch demonstrated the system of pneumatic clock synchronisation in the Austro-Hungarian section of the Universal Exposition. The Paris city council granted Popp's Compagnie des Horloges Pneumatiques (CGHP) authorization to install a compressed air network to drive both public and private clocks. It was not a power distribution network but a time distribution network, which synchronised a large number public clocks, in particular those of railway stations, by sending a pulse of air every minute. The pipes ran through the sewers of the city, and the tunnels of the Metro and the RER. (The RER is a commuter rail network serving Paris and its suburbs) Each Popp clock contained a metal bellows which advanced a 60-tooth wheel by one tooth per minute. Operation began in 1880; it is interesting to note that this was a long time after the Paris pneumatic post had opened in 1866.
time  paris  clocks 
20 hours ago by cdzombak
Time Converter and World Clock - Conversion at a Glance - Pick best time to schedule conference calls, webinars, online meetings and phone calls.
Effortless time conversion and world time. Schedule conference calls, webinars & online meetings, plan travel and track flight arrival time across time zones.
yesterday by jrotenstein

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