Volcano Hazards Program HVO Kilauea. Alert Level: WARNING, Color Code: RED HVO/USGS Volcanic Activity Notice Volcano: Kilauea (VNUM #332010) Current Volcano Alert Level: WARNING Current Aviation Color Code: RED Previous Aviation Color Code: ORANGE Issued: Tuesday, May 15, 2018, 1:23 PM HSTSource: Hawaiian Volcano ObservatoryNotice Number: Location: N 19 deg 25 min W 155 deg 17 minElevation: 4091 ft (1247 m) Area: Hawaii Volcanic Activity Summary: As of early this morning, eruption of ash from the Overlook vent within Halemaumau crater at Kilauea Volcano's summit has generally increased in intensity. Ash emission from the Kilauea summit vent will likely be variable with periods of increased and decreased intensity depending on the occurrence of rockfalls into the vent and other changes within the vent. At any time, activity may become more explosive, increasing the intensity of ash production and producing ballistic projectiles near the vent.
Resource on volcanic ash hazards: askHVO@usgs.gov. An Introduction to Geology. Virtually No Food Additives Have Been Properly Studied By FDA: Report. Many food additives allowed by the FDA in commercial foods have not been sufficiently studied and may pose serious risks to human health, according to a new report. The Global Research Center, based in Montreal, is calling for increased consumer awareness about the potential risks associated with additives in the food supply, indicating that the FDA has failed to properly study thousands of additives used to preserve and enhance the flavor and appearance of many food products. “In the FDA’s own database, 93% of food additives lack reproductive or developmental toxicity data,” said a statement released by Global Research.
The company says the additives “adulterate” the food and have many negative health consequences for consumers. Since the introduction of processed foods in the 1950s, many nonfood substances have become commonly and widely used. Some additives preserve products, while others are simply substituted as a cheaper ingredient. Food Additives Of Concern. Damn Interesting. Today’s Headlines and Commentary. The Demon-Haunted World: Science as a Candle in the Dark by Carl Sagan | 9780345409461. A strong defense of the skeptical paradigm.
Sagan is a generally good writer, and in this now-classic book he penned a strong and usually compelling defense of the skeptical paradigm. The book is replete with good examples, and has several chapters well worth reading for those who are either budding skeptics, or are interested in learning about how to think critically and scientifically. The man, to be sure, understood science and was a solid critical thinker. Unfortunately, the organization of the book is somewhat lacking.
Sagan touches many of the classic pseudoscientific bugbears like alien abductions, UFOs, hypnotic regression, and prophetic visions, but he bounces from one to the other, never really spending enough time on one topic in concert to make it feel as though he has thoroughly covered the material. Make no mistake, by the end much of it has been thoroughly covered -- especially UFOs and abductions -- but the coverage is disjointed.
Was this review helpful? Understanding Astronomy: The Sun and the Seasons. To those of us who live on earth, the most important astronomical object by far is the sun. It provides light and warmth. Its motions through our sky cause day and night, the passage of the seasons, and earth's varied climates. The Sun's Daily Motion Multiple-exposure photo of the setting sun, showing that it follows the same diagonal path that a star would, as seen from a mid-northern latitude. On any given day, the sun moves through our sky in the same way as a star. But as the weeks and months pass, you'll notice that the sun's motion isn't quite the same as that of any star. Moreover, the location of the sun's path across the sky varies with the seasons, as shown in the computer-generated image below, which shows the eastern sky, viewed from a mid-northern latitude.
This simulated multiple-exposure image shows the path of the rising sun through the eastern sky on the morning of the 21st of each month, from December at the right through June at the left. The Seasons temperate zones . Essentials of Meteorology.: An Invitation to the Atmosphere - C. Donald Ahrens. EXOSOLAR. Complete Sun and Moon Data for One Day. Use these forms to obtain rise, set, and transit times for the Sun and Moon; civil twilight beginning and end times; and, lunar phase information. First, specify the date and location in one of the two forms below. Then, click the "Get data" button at the end of the form. Use Form A for cities or towns in the U.S. or its territories.
Use Form B for all other locations. Be sure to read the Notes section located after the two forms, especially if you wish to use these data for legal purposes. Form A - U.S. Form B - Locations Worldwide Notes Legal Use of the Calculated Data Please see Astronomical Data Used for Litigation if you are interested in using the data produced by this service for legal purposes. Definitions For more information on the terms used, see the Astronomical Almanac On-line Glossary, Rise, Set, and Twilight Definitions or Phases of the Moon and Percent of the Moon Illuminated in the Astronomical Information Center. Computing Data for Multiple Days Time Formats Time Zones. Old Farmers Almanac.
Time Zone Map. Planet Diary. Eight Crayon Science - Science in plain English and simple drawings. World Environmental Organization - World.Org. How to Tell Time Without a Clock: 14 steps (with pictures) Edit Article Sun PositionReading the MoonNorth Star Clock Edited by Jen, Nicole Willson, Dan McGillen, [UCF] grego and 50 others For many people, knowing the correct time is vital to everyday life.
If you're in an unfamiliar environment without any kind of clock, however, figuring out the time could be a matter of safety and survival. Without a clock or watch, finding the exact time may not be possible, but you can figure the approximate time using the sun, moon or stars. Ad Steps Method 1 of 3: Sun Position 1Make note of the position of the sun. 4Determine which segment the sun is in. Method 2 of 3: Reading the Moon[2] 1Find the moon. Method 3 of 3: North Star Clock 1Locate the Big Dipper constellation. 6Correct for daylight saving time and time zone variation. Tips Don't forget to correct for daylight saving time.Don't stress out about exact numbers. Warnings. How to Find True North Without a Compass: 24 steps (with pictures) Edit Article The Shadow-Tip MethodUsing the Stars: Northern HemisphereUsing the Stars: Southern HemisphereUsing the Stars: EquatorAlternate Shadow-Tip Method for Increased AccuracyWatch Method: Northern HemisphereWatch Method: Southern HemisphereEstimating the Sun's Path Edited by Jwoldsr, Krystle, Jeffrey A.
Hawkins, Waited and 65 others Which way is north? Whether you're lost in the woods or you're trying to install a sundial in your yard, you're bound to want to find true north from time to time, and chances are when the time comes you won't have a compass.What's more, even if you do have a compass, it will point to magnetic north, which, depending on your location in the world, can vary a great deal from true north. So what's an intrepid explorer to do? Read this article to find several different ways to find your way. Ad Steps Method 1 of 8: The Shadow-Tip Method 1Place a stick upright in the ground so that you can see its shadow. Method 2 of 8: Using the Stars: Northern Hemisphere Tips.
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