A man has died of the injuries he suffered when he was punched by a construction worker during an argument over traffic cones at a work site in Northeast Washington last week, police say.The victim was identified in court documents as Desmond Joseph, with no age provided.District records shows Joseph lived a few blocks from Thursday’s altercation in the 200 block of Rhode Island Avenue NE. The head of the construction company said the victim may have been angry at his inability to park in the work zone.Police said in a court affidavit that Joseph suffered a hematoma to the back part of his head and was hospitalized on life support. A D.C. police spokeswoman said on Monday that the victim died of his injuries on Friday and that his death has been ruled a homicide.
Daily Archives: March 6, 2017
A trip past the sun may have selectively altered the production of one form of water in a comet – an effect not seen by astronomers before, a new NASA study suggests.Astronomers from NASA’s Goddard Space Flight Center in Greenbelt, Maryland, observed the Oort cloud comet C/2014 Q2, also called Lovejoy, when it passed near Earth in early 2015. Through NASA’s partnership in the W. M. Keck Observatory on Mauna Kea, Hawaii, the team observed the comet at infrared wavelengths a few days after Lovejoy passed its perihelion – or closest point to the sun.The team focused on Lovejoy’s water, simultaneously measuring the release of H2O along with production of a heavier form of water, HDO. Water molecules consist of two hydrogen atoms and one oxygen atom. A hydrogen atom has one proton, but when it also includes a neutron, that heavier hydrogen isotope is called deuterium, or the “D” in HDO. From these measurements, the researchers calculated the D-to-H ratio – a chemical fingerprint that provides clues about exactly where comets (or asteroids) formed within the cloud of material that surrounded the young sun in the early days of the solar system. Researchers also use the D-to-H value to try to understand how much of Earth’s water may have come from comets versus asteroids.
It was the day of the big flight test, and Obi the Pacific Parrotlet was ready. The small blue-green bird with an eight-inch wingspan had practiced its route—a short trip between two perches, three feet apart—for months. With help from assistants (with thumbs), Obi strapped on a pair of red safety goggles, which held tiny lenses cut from human-sized glasses to fit parrotlet-sized eyes. Once geared up, the captive-bred bird waited for its cue, and then took off through a fine mist of aerosol droplets, illuminated by lasers, to receive its reward of millet seeds on the other side.Obi participated in three test flights led by robot-building engineers at Stanford University to better understand how birds fly. So far, the general theories behind avian flight hold that a wing’s curved shape generates lift to keep birds elevated; flapping generates thrust to propel them forward; and soaring allows birds to ride currents to save energy even while airborne.
The place is the historic lecture theater of the Royal Institution in London. The date is the 4th of June 1903, and the inventor, Guglielmo Marconi, is about to demonstrate his new wireless system, which he claims can securely send messages over a long distance, without interference by tuning the signal.The inventor himself was over 300 miles away in Cornwall, preparing to send the messages to his colleague Professor Fleming in the theater. Towards the end of Professor Flemings lecture, the receiver sparks into life, and the morse code printer started printing out one word repeatedly: “Rats”. It then spelled out an insulting limerick: “There was a young man from Italy, who diddled the public quite prettily”. Marconi’s supposedly secure system had been hacked.Nevil Maskelyne, circa 1903. From the Royal Institution.The person behind this hack was Nevil Maskelyne, an inventor, magician, and general troublemaker who was a long-time rival of Marconi. He was the manager of a rival wireless company and had been involved in a number of disputes with Marconi over the patents that covered wireless telegraphy systems. He decided that the most effective way to show that Marconi’s claims were hollow was a practical demonstration.
Eleodoro Estala, 32, was arrested for indecent exposure after he was seen exposing himself and making lewd gestures around 11:25 a.m. Wednesday at a residence off North Lamar Boulevard, according to the affidavit.The caller told police she was looking out of her duplex window and saw Estala, her neighbor, urinating on the side of the fence that separates their property, according to the affidavit.
MORENO VALLEY (CBSLA.com) — A dirt bike flies over the 60 Freeway in Riverside County. It’s a mind-boggling stunt that would make anyone do a double take.Before launching over the freeway, the rider can be seen accelerating up a dirt path carved from a hillside and then liftoff.There’s plenty of traffic below. The stunning video shot from the air and ground was posted on Kyle Katsandris’ Instagram account, along with a YouTube channel, which features several other clips of Katsandris doing stunts and tricks on his bike.
China has issued a “International Strategy of Cooperation on Cyberspace” in which it outlines rules it thinks should govern nations’ online conduct.The thrust of the document is that the world needs internet governance that respects sovereignty, reduces the likelihood of conflict and ensures no one nation can control cyberspace. China forcefully, and repeatedly, states its determination to bring about that state of affairs.The document opens by stating “In the interconnected cyberspace, countries are bound together by intertwined interests. A secure, stable and prosperous cyberspace is of great significance to all countries and the world.”China’s preferred way to secure cyberspace starts with a suggestion that “Countries should reject the Cold War mentality, zero-sum game and double standards, uphold peace through cooperation and seek one’s own security through common security on the basis of full respect for other countries’ security.”