Explore how astronomers and scientists use astronomical units to measure distances in the solar system in this video adapted from NASA. The astronomical unit (au) -- equal to the average distance from Earth to the Sun -- is a convenient unit of measure when talking about distances in the solar syste
Measurement technologies are getting increasingly sensitive -- but what does it mean for risk when we can measure the smallest amount of a substance in the stuff we eat, drink and breathe? Note: In talking about the hypothetical risk from the hypothetical substance Greensave, the video talks abou
Learn about the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission to Mars in this video from NASA's Goddard Space Flight Center. Mars does not have a global magnetic field like Earth but does have patches of magnetic fields. Scientists use magnetometers to study the planet's magnetic anomalies.
Discover how impact craters can provide insight into the history of the solar system in this video from NASA's Goddard Space Flight Center. Scientists compare impact craters that have changed over time with fresh craters to determine how landforms have evolved. The Linne crater on the Moon is a pris
This is an awesome science trick where we make all the smoke inside a bottle disappear in a second. Let us know if you have some science tricks of your own you would like to see done. Serious Business Inquiries Only: Contact us at: https://www.youtube.com/c/householdhackertv/about (email address at
What are the ethical issues that emerge as our ability to detect chemicals in the environment around us improves? This week's risk bites looks at the ethical dimension of the measurement conundrum -- when our ability to detect stuff outstrips our understanding of what to do with the information. Th
Learn how a giant storm on Saturn sent temperatures soaring in this video from NASA's Goddard Space Flight Center. About once a Saturn year, the planet develops a massive storm called a Great White Spot. Planetary scientist Brigette Hesman describes observations of the storm that erupted on Saturn i
Discover how and why Curiosity, the Mars rover, measures wind and radiation on Mars. Mars Science Laboratory scientist Ashwin Vasavada describes two of the instruments onboard the rover that study Mars' present environment. The Radiation Assessment Detector (RAD) measures high-energy radiation from
Discover how scientists plan to use data from the GRAIL mission and a map of the Moon's gravitational field to learn about its internal structure. By comparing data about the Moon's gravity with information about its topography, scientists can gain a better understanding of the Moon's formation and
Launched in September 2011, find out about the Gravity Recovery and Interior Laboratory (GRAIL) mission to measure the gravitational field of the Moon and study how the Moon developed over time. Animations illustrate technical aspects of the mission's design, including the launch, orbital insertion
Four Freedoms explained in under 3 minutes. Free Software guarantees you the essential four freedoms to use, study, share, and improve the software. These rights, that define software freedom, help support other fundamental freedoms like freedom of speech, press, and privacy. We explain in less the
Discover the instruments that Curiosity, a rover on Mars, used to gather and analyze soil samples in this video from NASA's Jet Propulsion Laboratory. In 2012, Curiosity took its first scoop of Martian soil to test and analyze from an area called Rocknest. One of the project scientists describes how
