on October 3, 2022
Change in earth mass since the time of the dinosaurs
Earth scienceAsked by: Ray Carrao Was there less gravity when dinosaurs were alive? My friend and fellow science writer Matthew Francis covers the gravity angle over at his blog – there’s no evidence that the Earth’s gravity was weaker during the heyday of the dinosaurs. Even as continents shifted around, the Earth’s gravity didn’t change. What
on October 3, 2022
Electric permittivity of quartz
Earth scienceAsked by: Jeremy Whiteman The extracted dielectric permittivity of quartz as a function of frequency using the extraction method described in the text is depicted. A constant value of approximately 3.8 is obtained for the frequency range 1 to 40 GHz and on average 3.76 for the frequency range 140 to 210 GHz. What is
on October 3, 2022
Why does the meandering pattern of the jet stream itself propagate?
Earth scienceAsked by: Jeremy Whiteman Why does the jet streams have a meandering tendency? Sometimes, like in a fast-moving river, the jet stream’s movement is very straight and smooth. However, its movement can buckle and loop, like a river’s meander. This will slow things up, making areas of low pressure move less predictably. The jet stream
on October 3, 2022
Has irreversible global warming already begun?
Earth scienceAsked by: Tammy Peters The effects of human-caused global warming are happening now, are irreversible on the timescale of people alive today, and will worsen in the decades to come. How many years until global warming is irreversible? There is some indication the system has experienced a gradual weakening over the past few decades, and
on October 3, 2022
How to sample for K-Ar dating?
Earth scienceAsked by: Crystal Jones What kind of samples are required for potassium-argon and argon argon dating? The older method required splitting samples into two for separate potassium and argon measurements, while the newer method requires only one rock fragment or mineral grain and uses a single measurement of argon isotopes. How is K-Ar dating done?
on October 3, 2022
Are there pockets of liquid carbon dioxide in Earth’s oceans?
Earth scienceAsked by: Crystal Jones Quick answer is no, however there are methane clathrates somewhere down there and possibly also carbon dioxide clathrates as well. How much CO2 is trapped in the ocean? While previous estimates put the ocean sink at around 2bn tonnes of CO2 per year, we find that it could be 0.8-09bn tonnes
on October 3, 2022
Is there a real time tool to monitor electric flow in the clouds?
Earth scienceAsked by: Aaron Zilla How do I monitor my clouds? Cloud monitoring best practices Observe your cloud service usage and fees. … Identify metrics and events that affect your bottom line. … Use a single platform to report all data. … Trigger rules with data. … Separate your centralized data. … Monitor the user experience.
on October 3, 2022
Lanes of flat ocean surface in coastal waters
Earth scienceAsked by: Aaron Zilla What are the lines on the surface of the ocean? These patches are actually called windrows, and they are usually parallel lines of “stuff” sometime stretching for more than a kilometer. In our waters they are composed largely of sargassum, foam/bubbles, and a mixture of floating polyfoam, plastic, and other jetsam
on October 3, 2022
Does the geographic North Pole move?
Earth scienceAsked by: Ann Shaw The magnetic and geomagnetic poles change quite drastically. But even the geographic north pole moves up to 10 meters a year as the earth wobbles on its axis due to seasonal air pressure differences across the globe, melting ice caps, and so on. Does the North Pole always move? Magnetic north
on October 3, 2022
Where can I get archived hourly temperature data?
Earth scienceAsked by: Ann Shaw The authoritative sources for your data are: ASOS: Automated Surface Observation Systems at airports, and. MADIS: the Meteorological Assimilation Data Ingest System, from NOAA. How do I find historical temperature data? How to Obtain Historical Climate Data Local Current Conditions. Local Enhanced Radar. Local Standard Radar (low bandwidth) Regional Standard Radar