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Remarkably Fluorescent Rocks
Display quality minerals under visible and ultraviolet light. Minerals include calcite, willemite, scheelite, fluorite, hydrozincite, wollastonite, and hyalite opal. Some blue light fluorescence is observed.
มุมมอง: 294

วีดีโอ

Tungsten - The Element, Its Ores, Properties and Uses
มุมมอง 2543 หลายเดือนก่อน
This video provides an overview the element Tungsten. Its atomic structure is presented and its two major ores, scheelite and wolframite are described. The fluorescent properties of scheelite are shown. The high density of tungsten is demonstrated. Several uses of tungsten and its alloys as well as tungsten carbide are described.
Fluorite - The Most Colorful Mineral
มุมมอง 2357 หลายเดือนก่อน
Fluorite crystals are examined under UV and visible light. Green fluorite crystals glow bright blue under longwave UV light and a beautiful sample of black rose fluorite glows in multiple colors. The role of rare earth elements (including Europium) in generating fluorescence is discussed.
Gadolinium -- Magnetic Properties Near the Curie Temperature
มุมมอง 1.8K8 หลายเดือนก่อน
The element Gadolinium is unusual in that it dramatically changes its magnetic properties near room temperature. This effect is demonstrated with a simple experiment and the Curie point is explained.
Chromium-Beautiful Bumpers, Stainless Steel and Van Gogh's Paints
มุมมอง 4319 หลายเดือนก่อน
This video summarizes the discovery, properties, atomic structure, uses, as well as biologic importance and toxicology of the element Chromium. The importance of the chromium oxide layer on the metal is important for corrosion resistance and its thickness can result in thin film interference of light. Vincent Van Gogh was a big fan of Viridian green paint as well as chrome yellow both Chromium ...
Titanium -- Its Fascinating History, Properties and Uses
มุมมอง 5K10 หลายเดือนก่อน
History, properties and uses of the element Titanium. Gregor's discovery and Matthew Hunter's experiments on the Rensselaer Polytechnic Institute football field are discussed. Titanium's magnetic properties are demonstrated as well as its sparking in a flame. Aerospace uses include the SR71 Blackbird and A10 Warthog aircraft. Titanium dioxide's common uses are presented and unusual titanium dio...
Franklinite -The New Jersey State Mineral Honoring Benjamin Franklin
มุมมอง 34411 หลายเดือนก่อน
Franklinite mineral history, composition, magnetism, and its beauty when it occurs with fluorescent minerals.
Magnetic Behavior of Metals - Including Gold and Silver Coins
มุมมอง 444ปีที่แล้ว
Magnetic properties of different metallic elements are observed, including gold, silver copper, tungsten, bismuth and titanium. Copper alloy gold coins including a Mexican 50 Peso and a Saint Gaudens are examined, as well as silver coins. Lenz's Law is demonstrated.
Trinitite -- Radiation, Magnetism and a Ghostly Face
มุมมอง 294ปีที่แล้ว
This is close examination of a 5.6 g trinitite sample. Its radioactive and magnetic properties are explored. What looks like a ghostly face is a reminder of the destructive properties of atomic weapons.
Hackmanite's Remarkable Color Changes
มุมมอง 1.3Kปีที่แล้ว
Qualities of an unusually colorful hackmanite sample as a result of exposure to white LED light, sunlight, long and short wave ultraviolet light as well as red and green laser light. Fluorescent and tenebrescent properties of hackmanite are clearly shown.
Mischmetal -- Slow Motion Sparks
มุมมอง 641ปีที่แล้ว
A brief look at the history and composition of the rare earth alloy called mischmetal or ferrocerium. Examination in slow motion of sparks produced by scraping a knife or sandpaper on a mischmetal rod.
Radioactivity of Uranium Ore vs Uranium Metal, Fiestaware, and Uranium Glass
มุมมอง 2.5Kปีที่แล้ว
Radioactivity of Uranium ore is compared to that of Uranium metal, antique orange Fiestaware and Uranium glass. The effect of titanium and lead plates in blocking the radiation is examined.
Lithium -- The Element and Its Uses
มุมมอง 1.1Kปีที่แล้ว
A brief look at the element lithium Atomic structure, reactivity and uses. Lithium is used in batteries, glass-making, lubricants and lightweight metal alloys.
Glowing Rocks -- Colorful and Beautiful Fluorescent Minerals
มุมมอง 3.7K2 ปีที่แล้ว
A variety of minerals are examined under short and long wave UV light. Materials include calcite, helenite, wollastonite, willemite and hackmanite.
Gadolinium - Why The Element is So Amazing!
มุมมอง 124K2 ปีที่แล้ว
Magnetic properties of elemental gadolinium are illustrated as well as gadolinium's use in MRI contrast agents, magnetic refrigeration and as a neutron absorber in nuclear reactors. Gadolinium's Curie temperature effects are illustrated.
The iPhone 13 Pro is Great for Science and Nature Photography
มุมมอง 952 ปีที่แล้ว
The iPhone 13 Pro is Great for Science and Nature Photography
Elements in the Human Body --- Appearance, Quantities and Function
มุมมอง 7552 ปีที่แล้ว
Elements in the Human Body Appearance, Quantities and Function
Sulfur and Its Beautiful Minerals
มุมมอง 3132 ปีที่แล้ว
Sulfur and Its Beautiful Minerals
Hackmanite-The Rare Color-Shifting Mineral
มุมมอง 5K2 ปีที่แล้ว
Hackmanite-The Rare Color-Shifting Mineral
Making Density Cubes of the Elements
มุมมอง 1K2 ปีที่แล้ว
Making Density Cubes of the Elements
Density and Archimedes Principle -- a Balsa, Zebrawood and African Blackwood Experiment
มุมมอง 2513 ปีที่แล้ว
Density and Archimedes Principle a Balsa, Zebrawood and African Blackwood Experiment
Magnetic Periodic Table Display --Educational Value and Safety
มุมมอง 4463 ปีที่แล้ว
Magnetic Periodic Table Display Educational Value and Safety
The Science of Panting in Dogs
มุมมอง 1.9K3 ปีที่แล้ว
The Science of Panting in Dogs
science4man channel
มุมมอง 3303 ปีที่แล้ว
science4man channel
Iridium - The Element 40 Times as Rare as Gold
มุมมอง 18K3 ปีที่แล้ว
Iridium - The Element 40 Times as Rare as Gold
Trinitite - The Atomic Age Glass
มุมมอง 7K3 ปีที่แล้ว
Trinitite - The Atomic Age Glass
Solar Eclipse 2017: Totality Approaching from Horizon
มุมมอง 294 ปีที่แล้ว
Solar Eclipse 2017: Totality Approaching from Horizon
What is an Atom?
มุมมอง 944 ปีที่แล้ว
What is an Atom?
Beauty of Elements
มุมมอง 2664 ปีที่แล้ว
Beauty of Elements
Magnetic Periodic Table Element Display-DIY
มุมมอง 1.3K4 ปีที่แล้ว
Magnetic Periodic Table Element Display-DIY