AFP News Agency
CLEAN : Presidential vote underway in polarized
CLEAN : Presidential vote underway in polarized
AFP News Agency
VOICED : Costa Rica vota en balotaje polarizado en torno a matrimonio gay
Costa Rica volvia el domingo a las urnas para elegir a su futuro presidente en un escenario polarizado entre el predicador evangelico Fabricio Alvarado opositor del matrimonio homosexual y el exministro oficialista Carlos Alvarado que...
AFP News Agency
CLEAN : Presidential vote underway in polarized
Polls opened Sunday in Honduras, the world's deadliest country where the top presidential contenders are the wife of a deposed president and a supporter of the coup that ousted him CLEAN : Presidential vote underway in polarized on...
AFP News Agency
CLEAN : 100 days of protests against police violence, racism in Portland
Portland this weekend marks 100 days since protests erupted in the western US city to denounce police brutality and racism, shining a spotlight on a deeply polarized America as it prepares for high-stakes elections (Footage by AFPTV via...
AFP News Agency
VOICED : El Alto y La Paz, reflejo de la polarización electoral en Bolivia
Las ciudades vecinas de El Alto y La Paz son el reflejo de una Bolivia polarizada en la campaña de los comicios del 18 de octubre, pues una se inclina por Luis Arce, el delfín del expresidente Evo Morales, y la otra por el exmandatario...
AFP News Agency
VOICED : Bolsonaro vs Lula: arranca la campaña más polarizada en décadas en Brasil
Brasil entró el martes en una campaña electoral de alto voltaje, con el ultraderechista Jair Bolsonaro y el izquierdista Luiz Inácio Lula da Silva como protagonistas de la disputa presidencial más polarizada en décadas (Footage by AFPTV...
AFP News Agency
VOICED : los brasileños están hartos de la larga y agresiva campaña electoral
El duelo electoral entre Luiz Inácio Lula da Silva y Jair Bolsonaro tiene a muchos brasileños hartos, luego de una campaña polarizada y repleta de desinformación (Footage by AFPTV via Getty Images)
AFP News Agency
CLEAN : Indigenous people cast their votes in Brazil Amazonas state
Our president is definitely Lula," says Indigenous artist as the Satae-Mawe community that live in the Amazonas state of Brazil, go to vote in the polarized presidential election between former president Luiz Inacio Lula da Silva and...
AFP News Agency
VOICED : Abren los centros de votación en Brasil para balotaje presidencial
Los brasileños empezaron a votar el domingo en la segunda vuelta de las elecciones presidenciales, una polarizada disputa entre el presidente derechista Jair Bolsonaro y el exmandatario izquierdista Luiz Inácio Lula da Silva (Footage by...
AFP News Agency
VOICED : Brasileños muestran esperanza en el nuevo gobierno de Lula
Algunos brasileños veían el lunes con esperanza el triunfo electoral del izquierdista Luiz Inácio Lula da Silva tras una campaña polarizada y una votación que mostró la división en el país (Footage by AFPTV via Getty Images)
Scholastic
Study Jams! Light Absorption, Reflection, & Refraction
Zoe and RJ are trying to photograph an egret on a lake, but they are having trouble with the lighting. Reflection, refraction, and absorption are explored through their thoughtful dialogue so that your physical scientists are illuminated...
Curated OER
Physics Lab Demo : Optics Light Box
Use a light box to experiment with light rays. The teacher uses prisms, convex, and concave lenses to refract light rays. Get your physics class excited about reflection and refraction by showing this video before you have them...
Khan Academy
Refraction of Seismic Waves, Cosmology & Astronomy
Mr. Khan uses the metaphor of a car to help explain the change in the direction of waves as they hit a boundary between two mediums. He then goes on to explain the relationship between the earth's structure and density and the waves'...
Bill Nye
Bill Nye The Science Guy on Light, Bending & Bouncing
Beam me up, Bill! Explore how beams of light behave when they strike flat and curved surfaces. Bill bends light using a nifty contraption that streams three beams through a straight and a curved piece of plastic. He also defines and...
PBS
Light Absorption: Effects of Light | UNC-TV Science
Beat the summer heat by exploring the properties of color. Scientists view a video explaining the relationship between light absorption and energy transfer using variables including intensity, time, and wavelength. A multiple-choice...
PBS
Reflection and Refraction | UNC-TV Science
Uncover the exciting interactions of light energy and matter ranging from color to optical illusions. Participants explore color using red and green apples, differences between reflection and refraction, and descriptions of related...
Crash Course
Geometric Optics: Crash Course Physics #38
Light can be a mysterious phenomenon. Take away some of the mystery with an intriguing video lesson. The 38th lesson of the Crash Course physics series studies the movement of light waves. Topics include refraction and reflection as well...
Crash Course
Telescopes
According to the video, astronomy is like a jigsaw puzzle with an infinite number of pieces. The video explains the history and invention of telescopes, how they work, refraction versus reflection, and the changing technology. It...
Bozeman Science
Waves
Calculating frequency is so easy it Hertz! The video begins by describing transverse and longitudinal waves, and then it explores their properties and applications. Finally, it applies this to the formulaic relationships between wave...
SciShow
From Kepler to Webb: The History of the Telescope
The Hubble Telescope is approximately the size of a school bus, but the new Webb Telescope will be approximately the size of a tennis court. The history of the telescope, from its invention to to what it takes to make one, is the focus...
DoodleScience
Total Internal Reflection
Demonstrate fiber optics and specifically how total internal reflection works. It covers the relationship between the angle of incidence and the critical angle, refraction, and the role of density. It concludes with other applications...
DoodleScience
Diverging Lenses
2016 was the first time viewers could watch the Olympics in virtual reality. The video discusses how diverging lenses are used to create virtual images using refracting light. It also explains how to use a ray diagram and identify the...
DoodleScience
Converging Lenses
Did you know your eyes can only focus to within about six inches in front of them? The video explains converging lenses, refraction, images, the difference in converging and diverging, focus, focal length, and ray diagrams.
DoodleScience
Ultrasound
Here is a resource that explains how ultrasound works by using sound waves. It examines such applications as its use in the detection of kidney stones and in prenatal care. A practice problem is also included.