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π Toss Bombing
Toss bombing (sometimes known as loft bombing, and by the U.S. Air Force as the Low Altitude Bombing System, LABS) is a method of bombing where the attacking aircraft pulls upward when releasing its bomb load, giving the bomb additional time of flight by starting its ballistic path with an upward vector.
The purpose of toss bombing is to compensate for the gravity drop of the bomb in flight, and allow an aircraft to bomb a target without flying directly over it. This is in order to avoid overflying a heavily defended target, or in order to distance the attacking aircraft from the blast effects of a nuclear (or conventional) bomb.
Discussed on
- "Toss Bombing" | 2019-09-15 | 50 Upvotes 6 Comments
π Shigir Idol
The Shigir Sculpture, or Shigir Idol (Russian: Π¨ΠΈΠ³ΠΈΡΡΠΊΠΈΠΉ ΠΈΠ΄ΠΎΠ»), is the oldest known wooden sculpture in the world, made during the Mesolithic period, shortly after the end of the last Ice Age. The wood it was carved from is approximately 11,500 years old. It is displayed in the Sverdlovsk Regional Museum of Local Lore in Yekaterinburg, Russia.
Discussed on
- "Shigir Idol" | 2019-09-15 | 45 Upvotes 14 Comments
π StarTram
StarTram is a proposed space launch system propelled by maglev. The initial Generation 1 facility would launch cargo only, launching from a mountain peak at an altitude of 3 to 7 kilometres (1.9 to 4.3Β mi) with an evacuated tube staying at local surface level; it has been claimed that about 150,000 tons could be lifted to orbit annually. More advanced technology would be required for the Generation 2 system for passengers, with a longer track instead gradually curving up at its end to the thinner air at 22 kilometres (14Β mi) altitude, supported by magnetic levitation, reducing g-forces when each capsule transitions from the vacuum tube to the atmosphere. A SPESIF 2010 presentation stated that Generation 1 could be completed by the year 2020 or later if funding began in 2010, and Generation 2 by 2030 or later.
Discussed on
- "StarTram" | 2019-09-13 | 52 Upvotes 17 Comments
π Sauropod Neck Posture
Sauropod neck posture is a subject occasionally debated among scientists, with some favoring postures closer to horizontal whilst others a more upright posture. Research has looked at various avenues of evidence and analysis including: attempting to reconstruct the neutral posture of their necks and estimating range of motion by studying the bones; attempting to reconstruct sauropod metabolism and the energy requirements of sustaining incredibly long necks in various postures; and comparing sauropod neck anatomy to those of living animals.
Discussed on
- "Sauropod Neck Posture" | 2019-09-13 | 51 Upvotes 30 Comments
π Tza'ar Ba'alei Chayim
Tza'ar ba'alei chayim (Hebrew: Χ¦Χ’Χ¨ ΧΧ’ΧΧ ΧΧΧΧβ), literally "suffering of living creatures", is a Jewish commandment which bans causing animals unnecessary suffering. This concept is not clearly enunciated in the written Torah, but was accepted by the Talmud as being a biblical mandate. It is linked in the Talmud from the biblical law requiring people to assist in unloading burdens from animals (Exodus 23:5).
Discussed on
- "Tza'ar Ba'alei Chayim" | 2019-09-13 | 54 Upvotes 27 Comments
π Lord Buckethead
Lord Buckethead is a satirical political candidate who has stood in four British general elections since 1987, portrayed by several individuals.
The character, an intergalactic villain similar to the Star Wars character Darth Vader, was created by American filmmaker Todd Durham for his 1984 science fiction film Hyperspace. British video distributor Mike Lee adopted Lord Buckethead to stand in the 1987 UK general election and again in the 1992 general election. The character went unused until comedian Jonathan Harvey stood as Lord Buckethead in the 2017 general election; his televised appearance standing next to prime minister Theresa May went viral, drawing media coverage and an online following.
After the 2017 election, Durham asserted his ownership of the character and displaced Harvey. With Durham's authorisation, Lord Buckethead returned in 2019, now played by David Hughes; he appeared at Peopleβs Vote rallies calling for a second Brexit referendum, and stood in the 2019 general election representing the Monster Raving Loony Party. Harvey also stood, using a new character, Count Binface.
π COVFEFE Act
The Communications Over Various Feeds Electronically for Engagement Act (COVFEFE Act) is a bill introduced into the United States House of Representatives in 2017 (on June 12), during the 115th United States Congress.
The bill would amend the Presidential Records Act to preserve Twitter posts and other social media interactions of the President of the United States, and to require the National Archives to store such items.
U.S. Representative Mike Quigley, Democrat of Illinois, introduced the legislation in the wake of Donald Trump's routine use of Twitter, stating "In order to maintain public trust in government, elected officials must answer for what they do and say; this includes 140-character tweets. If the president is going to take to social media to make sudden public policy proclamations, we must ensure that these statements are documented and preserved for future reference." If enacted, the bill "would bar the prolifically tweeting president from deleting his posts, as he has sometimes done."
If the bill were enacted, it would see US law treat US presidents' personal social media accounts (such as Trump's "@realDonaldTrump" Twitter account) the same as "official" social media accounts (such as the "@POTUS" Twitter account).
Discussed on
- "COVFEFE Act" | 2019-09-11 | 24 Upvotes 15 Comments
- "COVFEFE Act" | 2017-08-14 | 113 Upvotes 29 Comments
π The Volfefe Index
The Volfefe Index is a stock market index of volatility in market sentiment for US Treasury bonds caused by tweets by President Donald Trump.
Bloomberg News observed Volfefe was created due to the statistical significance of Trump tweets on bond prices. ABC News Online posited Volfefe could help analyze interest rate risk in the face of "unpredictable" activity on social media by Trump.
Discussed on
- "The Volfefe Index" | 2019-09-11 | 63 Upvotes 22 Comments
π Plasma Antenna
A plasma antenna is a type of radio antenna currently in development in which plasma is used instead of the metal elements of a traditional antenna. A plasma antenna can be used for both transmission and reception. Although plasma antennas have only become practical in recent years, the idea is not new; a patent for an antenna using the concept was granted to J. Hettinger in 1919.
Early practical examples of the technology used discharge tubes to contain the plasma and are referred to as ionized gas plasma antennas. Ionized gas plasma antennas can be turned on and off and are good for stealth and resistance to electronic warfare and cyber attacks. Ionized gas plasma antennas can be nested such that the higher frequency plasma antennas are placed inside lower frequency plasma antennas. Higher frequency ionized gas plasma antenna arrays can transmit and receive through lower frequency ionized gas plasma antenna arrays. This means that the ionized gas plasma antennas can be co-located and ionized gas plasma antenna arrays can be stacked. Ionized gas plasma antennas can eliminate or reduce co-site interference. Smart ionized gas plasma antennas use plasma physics to shape and steer the antenna beams without the need of phased arrays. Satellite signals can be steered or focused in the reflective or refractive modes using banks of plasma tubes making unique ionized gas satellite plasma antennas. The thermal noise of ionized gas plasma antennas is less than in the corresponding metal antennas at the higher frequencies. Solid state plasma antennas (also known as plasma silicon antennas) with steerable directional functionality that can be manufactured using standard silicon chip fabrication techniques are now also in development. Plasma silicon antennas are candidates for use in WiGig (the planned enhancement to Wi-Fi), and have other potential applications, for example in reducing the cost of vehicle-mounted radar collision avoidance systems.
Discussed on
- "Plasma Antenna" | 2019-09-10 | 136 Upvotes 54 Comments