Professor Dave Explains
IIT/JEE Chemistry Practice #4: Limiting Reagents
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
The Backyard Scientist
Impossible Water Fountain - DIY
For the Fountain head: -6" long 1/2 diameter PVC pipe. Threaded on both ends. https://smile.amazon.com/Orbit-Pack-Flexible-Sprinkler-Riser/dp/B07B89XQ9K -90 degree barb fitting -5/16 stainless steel washer -3/32 brass tube -1/4in brass...
The Backyard Scientist
Pulsejet made from pipe fittings.
I made this pulse jet with a 1/2 scale because I couldn't find the correct size pipe for a full size. I'm using "rosscojector" style injection but it won't stay for more than 30 seconds. Unregulated
Curated Video
Hand Grenades: Types and Operation
Hand grenades are small bombs that function like firecrackers. They are filled with gunpowder or explosive filler and a fuse. Hand grenades are activated via a mechanical device rather than requiring a person to light them with a match....
Mazz Media
Biosphere
This live-action video program is about the word biosphere. The program is designed to reinforce and support a student's comprehension and retention of the word biosphere through use of video footage, photographs, diagrams and colorful,...
The Backyard Scientist
Turn an old Oven into a Kiln
I couldn't find any info on any projects like this, so I thought I would have a try myself. I thought an oven would be the perfect platform, it already has a door, space for insulation, and comes with heating elements! Im not giving the...
The Backyard Scientist
Dry Ice Hoverboard (D.I.Y. REAL Hoverboard)
Today I make a REAL hoverboard out of dry ice! It doesn't lift you high into the air like back to the future, but it perfectly emulates the feeling! Its just a wooden board with a rim around the edge to hole 3 blocks of dry-ice in place....
Curated Video
Electrolysis of Aqueous Solutions
This is a lecture presentation on the electrolysis of aqueous solutions. The presenter explains what an aqueous solution is and what it contains, particularly aqueous solutions of metal salts. The presenter then presents a hypothesis on...
Science360
Synthetic proteins: Mimicking the molecular machinery of life - Science Nation
Imagine synthetic antibiotics that could fight infections like MRSA, custom pharmaceuticals to treat advanced prostate cancer, and new enzymes that will turn cellulose into fuel. With support from the National Science Foundation (NSF),...
The Backyard Scientist
Making a Sword with THERMITE!
Usually Thermite is used to destroy things... Instead, I wanted to use it to make something to destroy things with. If you have never heard of it -Thermite is a mixture of Iron Oxide (rust) and Aluminum powder. When you ignite it a...
Curated Video
Ping Pong ball filled with liquid nitrogen? Insane Speed!
People were debating on how fast the ball was really spinning, and I had to find out for myself so I grabbed my camera that can shoot up to 1000fps. The original poster estimated the speed at 10,000 rpm, but the ball was really spinning...
The Business Professor
The Toxic Substance Control Act of 1976
This video provides an overview of the Toxic Substance Control Act (TSCA), a federal law that regulates the production and importation of new chemicals.
Professor Dave Explains
Alien: Covenant - How Did David Create the Neomorphs?
By now we've hopefully all seen Alien: Covenant. If you haven't, go see it right away! It's awesome, and this has spoilers. After you've seen it, you'll probably have a few questions, just as I did. The main thing that left me wondering,...
Curated Video
How Do Sunflowers Face The Sun?
Young sunflowers face the sun when it rises in the east and then track its motion in the sky throughout the day till it sets in the west in the evening. The process repeats the next day, as sunflowers return to their ‘starting’ position,...
PBS
Why Do We Eat Artificial Flavors?
Where do artificial flavors come from? Well whether it's your average store bought yogurt, granola bar, or even butter, a lot of food we eat today is full of artificial flavoring. Why did this happen? Well it actually has to do with the...
Professor Dave Explains
The Composition of Rocks: Mineral Crystallinity and Bonding Types
What is a mineral? How are minerals classified based on their elemental composition, crystalline structure, and bonding type? Learn the basics of mineral composition and classification in this video.
Minerals part 1
The Backyard Scientist
Small soup can forge melting zinc.
It's not perfect, and the flame circulation could be improved, but it is easy to use without constant attention.
NASA
NASA | Webb Telescope Planetary Studies Web Feature
The Webb Space Telescope will study planetary bodies with our solar system and planets orbiting other stars to help scientists better understand how planets form and how they evolve.
The Backyard Scientist
Growing borax crystals with florescent dye
A very very very saturated solution. The whole solution crystallized and broke my glass! Dye from highlighter.
Curated Video
Balancing Chemical Equations from Word Equations - Examples and Explanation
This video provides an explanation on how to balance chemical equations using examples of simple word equations. It explains the importance of multipliers and subscripts in chemical equations and demonstrates how to use them to balance...
The Business Professor
Understanding Patents: Types and Benefits
This video provides a brief overview of the three main types of patents: utility patents, design patents, and plant patents. The video also highlights the duration of each type of patent and emphasizes the importance of filing with the...
msvgo
Microbes as Biofertilisers
It describes the role of microbes as biofertilisers and the advantages of use of microbes over chemical fertilisers.
The Backyard Scientist
Supersonic Rubberband Whip - Easy Fun DIY
I had a bunch of fun at Maker Faire NYC! I saw a lot of really neat builds, tools, workshops and displays, but the rubber band whip really stood out as something easy and fun anybody can do. Maybe im still a 12 year old at heart but I...