Friday, November 23, 2018
A falconer with peregrine falcon and rifle in Al Ain, United Arab Emirates, December 1949
Makmood! Get some shoes on those feet!
Note, I have not tested this myself, but it is said a spinning penny will more frequently land on tails.
So Bet on tails. On a fresh, unworn, clean penny the odds may be 80:20 in your favor. This obviously doesn't apply to a coin flip, however.
The answer is that the side with Lincoln’s head on it is a bit heavier than the flip side, causing the coin’s center of mass to lie slightly toward heads. The spinning coin tends to fall toward the heavier side more often, leading to a pronounced number of extra “tails” results when it finally comes to rest.
Biomimicry
The peregrine falcon reaches faster speeds than any other animal on the planet when performing the stoop, which involves soaring to a great height and then diving steeply at speeds of over 320 km/h (200 mph), hitting one wing of its prey so as not to harm itself on impact. The air pressure from such a dive could possibly damage a bird's lungs, but small bony tubercles on a falcon's nostrils are theorized to guide the powerful airflow away from the nostrils, enabling the bird to breathe more easily while diving by reducing the change in air pressure. To protect their eyes, the falcons use their nictitating membranes (third eyelids) to spread tears and clear debris from their eyes while maintaining vision. A study testing the flight physics of an "ideal falcon" found a theoretical speed limit at 400 km/h (250 mph) for low-altitude flight and 625 km/h (388 mph) for high-altitude flight. In 2005, Ken Franklin recorded a falcon stooping at a top speed of 389 km/h (242 mph).
Thursday, November 22, 2018
Coldest Thanksgiving In 150 Years As Northeast Hit By "Siberian" Temperatures
Raquel Welch unavailable for comment.
A blast of Arctic air that is pushing temperatures 15 to 25 degrees colder below trend. As a result, people spending time outdoors during Thanksgiving Day into Black Friday may face some of the coldest conditions on record in the northeastern United States for late November.
The cold weather will be supplied by a burst of arctic air that produced locally blinding snow squalls across parts of the interior Northeast on Wednesday. The squalls diminished to spotty flurries south and east of the Appalachians.
"Anomalously cold weather will impact the I-95 corridor Thursday and Friday. Record low temperatures have already been broken Thursday morning across New England, and record low maximum temperatures are expected in many cities Thursday. This combined with winds gusting 15-30 mph will make it feel below zero at times through Friday morning," said Ed Vallee, head meteorologist at Vallee Weather Consulting.
Nov. 30, 1871, holds the record for the coldest Thanksgiving Day on record in New York City with a low of 15 and a high of 22.
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