8 coisas que existem e você nunca soube para que serviam

Summary

This video script enlightens viewers on the hidden purposes of everyday objects they've likely overlooked. It covers the blue eraser on pencils, designed for dark ink on rough paper; the small pocket on jeans, originally for pocket watches; the extra hole in sneakers for ankle support; the tactile bumps on 'F' and 'J' keys for touch typing; the paper clip's curve to prevent paper tearing; the air hole in pen caps to prevent choking; the metal notches on tape measures for secure marking; and the folded flaps on dress shirts for hanging, once a storage solution. Each object's story reveals a blend of historical necessity and modern convenience.

Takeaways

• 😀 The blue part of an eraser is designed to remove darker marks on rougher paper, while the red part is for softer marks.
• 👖 The small pocket on jeans originally served to hold pocket watches, not coins or other small items as commonly believed.
• 👟 The extra hole near the lace area of sneakers helps provide more stability and prevents the foot from moving forward during a run, especially useful for those with wide or flat feet.
• 🖥 The raised lines on the 'F' and 'J' keys on a computer keyboard are tactile guides for touch typing, helping users locate the keys without looking.
• 📎 When removing a paperclip, bending the silver part at a 180-degree angle can prevent tearing the paper, which is useful if you don't want to permanently attach the papers.
• ✒️ The small hole in pen caps is a safety feature to prevent choking if a child accidentally swallows the cap, allowing air to pass through.
• 📏 The metal tip of a tape measure has a small hole to secure the tape to a nail for more accurate measurements, and a serrated part to make marks on surfaces without a pen or pencil.
• 👕 The fold at the back of dress shirts was originally used for hanging shirts on a wall when hangers and closets were not available, providing an organizational function.
• 🔍 The script reveals the often-overlooked purposes of everyday objects, encouraging viewers to question and learn about the functionality behind common items.
• 📝 The video script serves as an educational piece, providing insights into the historical and practical reasons behind certain design features on various items.
• 💡 It highlights the importance of design in everyday life, showing how seemingly minor details can have significant impacts on usability and safety.

Q & A

What was the original purpose of the blue part of the eraser in a school eraser?

The blue part was initially created to erase darker marks on thicker and rougher papers, whereas the red part was for softer marks.

Why did people start using the blue part of the eraser for pencil marks?

People began using the blue part for pencil marks after they discovered it worked well for that purpose, and manufacturers adapted to this new use.

What was the initial purpose of the small pocket on jeans?

The small pocket was designed in 1873 to hold pocket watches, a common accessory for men at the time.

What is the function of the extra hole near the lace area of a sneaker?

The extra hole provides additional firmness and stability around the ankle, preventing the foot from sliding forward during a run, which is especially useful for people with wide or flat feet.

What is the purpose of the raised line on the 'F' and 'J' keys on a computer keyboard?

The raised lines serve as a tactile reference point for touch typing, helping users locate the keys without looking at the keyboard.

How can the silver part at the base of a paperclip be used to prevent paper damage when removing the clip?

By bending the silver part at a 180-degree angle, the clip can be removed without damaging the paper, as it will curve away from the sheets.

Why is there a hole in the cap of a pen?

The hole in the pen cap is a safety feature to allow air passage in case the cap is accidentally swallowed, reducing the risk of asphyxiation.

What is the function of the small hole and serrated part at the tip of a tape measure?

The small hole is used to secure the tape to a nail for safer measurements, while the serrated part helps make a mark on the surface during measurements without the need for a pen or pencil.

What was the original utility of the fold at the back of dress shirts?

The fold, or pleat, at the back of dress shirts was originally used to hang the shirts on a wall peg without them becoming crumpled, as there were no closets or hangers available.

Why might the small pocket on jeans still be useful today even though pocket watches are obsolete?

The small pocket on jeans can still be used for various purposes such as holding coins, small objects, or even as a fashionable detail.

How can the tactile feature on the 'F' and 'J' keys assist in learning to type faster?

The tactile feature on the 'F' and 'J' keys helps users to quickly locate the starting position for their fingers, enabling them to type without needing to look at the keyboard, which speeds up the typing process.

What is the significance of the extra hole in sneakers for people with wide or flat feet?

The extra hole in sneakers provides additional support and stability for people with wide or flat feet, helping to prevent falls and reduce the risk of foot or ankle injuries.