5 LIFE HACKS BASED ON SCIENCE

TL;DR

Learn simple life hacks including how to test polarized sunglasses, prevent headphone tangling, cool down a hot car, avoid static shocks, and remove sticker residue.

Transcript

[UPBEAT MUSIC] I know. I am doing a life hacks video. I know they're ridiculous, but I swear to you, I've been using these tricks in my life. And I really actually want to share them with you. And I swear I will not teach you things like you can cook a hot dog by hooking it up to either side of a 9 volt battery. I just used this trick at a farmer'... Read More

Key Insights

• 🙂 Testing sunglasses for polarization can be done by observing changes in light when rotated in front of a phone screen.
• 🎁 Headphone tangling can be minimized by wrapping them in a figure eight shape to prevent twists.
• 😅 Cooling a hot car efficiently involves opening windows and using the air conditioning system correctly.
• 😨 Prevent static shocks by touching the car door frame before exiting to discharge static electricity.
• 🐻‍❄️ Non-polar substances like oil or acetone can be used to remove sticker residue by dissolving the adhesive.
• 🐻‍❄️ Water and oil do not mix due to their polar and non-polar properties, respectively.
• 💅 Acetone, found in nail polish remover, can also dissolve sticker residue but may dry out the skin.

Questions & Answers

Q: How can I check if sunglasses are polarized?

To test polarized sunglasses, simply put them in front of a phone screen and rotate the glasses. If the light changes in color or brightness, it means the sunglasses are polarized.

Q: Why do headphones get tangled so easily?

Physicists have studied headphone tangling and found that wrapping them in a circular loop introduces twists that get locked in. However, using a figure eight shape prevents twists and keeps the headphones untangled.

Q: How can I cool down a hot car faster?

When entering a hot car, open the windows to release the hot air first. Then, switch the air conditioning to recirculate once the temperature inside has cooled down. This helps to counteract the greenhouse effect that heats up a parked car.

Q: How can I avoid static shocks when exiting a car?

To avoid static shocks caused by sliding across seats, touch the outside of the car door frame as you get out. This allows the static charge to flow into the metal frame through your hand, preventing a build-up of charge that can shock you.

Summary & Key Takeaways

• To test if sunglasses are polarized, put them in front of a phone screen and turn the glasses to see if there is a change in light.

• Wrap headphones in a figure eight shape instead of a circular loop to prevent them from tangling.

• Cool down a hot car by opening the windows and setting the air conditioning to draw in cooler outside air first.

• Avoid static shocks by touching the outside of the car door frame before exiting the vehicle.

• Remove sticker residue by applying non-polar substances like oil or acetone to dissolve the adhesive.