Kooksta.com  

Make A Zinc Air Battery

We make ferric chloride, a well-known etchant for printed circuit boards. Get 20g of iron. This can be in the form of nails or steel wool. It`s best to ...

We make ferric chloride, a well-known etchant for printed circuit boards. Get 20g of iron. This can be in the ...

We make ferric chloride, a well-known etchant for printed circuit boards. Get 20g ...

Make A Zinc Air Battery

In this video we show how to make a Zinc Air Battery. First you'll need to make a solution of 50g of sodium hydroxide in 150mL of water. Stir it until it completely dissolves. Be careful as it will heat up a lot. Set it aside to cool. Now get a zinc sheet (we cut one out of a carbon zinc battery in a previous video: www.youtube.com/watch?v=knc1lSupAwQ) and attach ...

In this video we show how to make a Zinc Air Battery. First you'll need to make a solution of 50g of sodium hydroxide in 150mL of water. Stir it until it completely dissolves. Be careful as it will heat ...

In this video we show how to make a Zinc Air Battery. First you'll need to make a solution of 50g of sodium hydroxide in 150...

Make Flowers Glow In The Dark (with Highlighter Fluid And Uv Light)

we show how to make flowers glow in the dark under ultraviolet light using a fluorescent dye. You really only need two things, an ultraviolet lamp and a fluorescent highlighter. Open the highlighter and squeeze a few drops of the fluorescent ink into a cup of water. Now take the flower (i find white carnations to be the best) and cut the stem underneath the solution. Leave the flower in overnight and the dye will ...

we show how to make flowers glow in the dark under ultraviolet light using a fluorescent dye. You really only need two things, an ultraviolet lamp and a fluorescent highlighter. Open the highlighter and squeeze a few drops of the ...

we show how to make flowers glow in the dark under ultraviolet light using a fluorescent dye. You really only need two things, an ultraviolet ...

Clean Pennies With Vinegar And Salt

In this video we clean pennies with vinegar and salt. Just mix together some vinegar with enough salt to make a saturated solution. The apply the solution to your tarnished pennies. The combination of acid and chloride etches the tarnish away to reveal the clean copper underneath. Don't leave the acid on or it will keep etching and produce an ugly green coating of copper salts. So wash off the acids with water after the ...

In this video we clean pennies with vinegar and salt. Just mix together some vinegar with enough salt to make a saturated solution. The apply the solution to your tarnished pennies. The combination of acid and chloride etches the tarnish ...

In this video we clean pennies with vinegar and salt. Just mix together some vinegar with enough salt to make a saturated solution. The apply ...

Make Ferric Chloride (for Etching Printed Circuit Boards)

We make ferric chloride, a well-known etchant for printed circuit boards. Get 20g of iron. This can be in the form of nails or steel wool. It's best to use iron that's rusting, that indicates it doesn't have other metals like zinc or chromium that's normally used to prevent rust. To the iron add 100mL of water and 100mL of 12M hydrochloric acid. The iron will start reacting with the acid to produce hydrogen gas ...

We make ferric chloride, a well-known etchant for printed circuit boards. Get 20g of iron. This can be in the form of nails or steel wool. It's best to use iron that's rusting, that indicates it doesn't have other metals ...

We make ferric chloride, a well-known etchant for printed circuit boards. Get 20g of iron. This can be in the form of nails or steel ...

Make 10 Etchants For Copper Printed Circuit Boards

We show 10 ways to make PCB etchants using easy to access chemicals 1. Hydrogen Peroxide (5mL of 3%) and Hydrochloric Acid (5mL of 37%) Loses strength in storage but makes copper chloride that can later be used as a fully recyclable etchant. 2. Hydrogen Peroxide (10mL of 3%) + Sulfuric acid (1mL of 98%) Loses strength in storage but can be electrochemically recycled back into copper and sulfuric acid. 3. Hydrogen Peroxide (10mL of 3%) + Sodium Bisulfate (5g) Loses strength in storage but can ...

We show 10 ways to make PCB etchants using easy to access chemicals 1. Hydrogen Peroxide (5mL of 3%) and Hydrochloric Acid (5mL of 37%) Loses strength in storage but makes copper chloride that can later be used as a fully recyclable etchant. 2. Hydrogen ...

We show 10 ways to make PCB etchants using easy to access chemicals 1. Hydrogen Peroxide (5mL of 3%) and Hydrochloric Acid (5mL of 37%) Loses strength in storage ...

Make Sodium Metal Without Electrolysis Using Domestic Chemicals

In this video we show how to make sodium metal without electrolysis using domestically available chemicals. First 40g of sodium hydroxide and 30g of magnesium are place in a steel container with a fuse or sparkler and lit. A heavy lid is quickly placed over the mixture and allowed to burn. The mixture then allowed to cool and the resulting aggregate of sodium metal and magnesium oxide is chiseled out. The aggregate is then ground ...

In this video we show how to make sodium metal without electrolysis using domestically available chemicals. First 40g of sodium hydroxide and 30g of magnesium are place in a steel container with a fuse or sparkler and lit. A heavy ...

In this video we show how to make sodium metal without electrolysis using domestically available chemicals. First 40g of sodium hydroxide and 30g of magnesium ...

How To Levitate Pencil Lead

In this video we show you how to levitate pencil lead. In a previous video we showed that pyrolytic graphite was diamagnetic, it was repelled by magnetic field, and that this repulsion was strong enough to levitate it. You can see the previous video here: www.youtube.com/watch?v=jyqOTJOJSoU Now pyrolytic graphite is expensive so a cheaper alternative is to use very thin pencil lead. Not all pencil lead works so you need ...

In this video we show you how to levitate pencil lead. In a previous video we showed that pyrolytic graphite was diamagnetic, it was repelled by magnetic field, and that this repulsion was strong enough to levitate it. You can ...

In this video we show you how to levitate pencil lead. In a previous video we showed that pyrolytic graphite was diamagnetic, it was repelled ...

Kooksta.com
Degree Programs
Popular Career Searches
Page Name   Link   Link  
    Test Prep     Privacy Policy     Terms of Use     About     Contact

This website is not affiliated with any educational organization, and all trademarks are the exclusive property of the respective owners. Kooksta.com is the work of a group of students in Bangkok, and all copyrighted works on this website are offered for educational purposes only, governed by the four-factor rule, section 107 of the US Copyright Act, 1976.