spacex
A SpaceX Falcon 9 rocket lifts off on a supply mission to the International Space Station from historic launch pad 39A at the Kennedy Space Center in Cape Canaveral, Florida, Feb. 19, 2017. REUTERS
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This question originally appeared on Quora. Answer by Rohan Kumar.

1. Rupert’s Drop

This is indestructible glass piece. Popularly known as Rupert’s drop named after the Prince Rupert of the Rhine who brought them to England in 1660. It's almost unbreakable and can survive a bullet.

To destroy it you have to just break its tail from the end and it will explode into fine glass dust. Like this:

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Rupert's Drop Quora

This drop led to the invention of shatterproof glasses that we see today.

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Fine glass dust. Quora

2. A giant bar-magnet on an array of compasses

You can clearly see the magnetic field lines running from north to south pole.

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Representational image. Quora

3. Optical 5X Dual Zoom(Developed by Oppo)

Its optical zoom not digital zoom. Digital zoom is crappy. Using the concept of periscopes this technology will make your camera zoom far better. And it will remove the camera bump we often see in smartphones. Unveiled this at the Mobile World Congress (2017).

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Optical 5X Dual Zoom. Quora

4. SpaceX Falcon 9 Landing

Why waste fuel boosters in the ocean. SpaceX has the technology using which it can land its first stage boosters back on earth on pod ships. This has drastically reduced space mission costs.

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SpaceX Falcon 9. Quora

5. Empty Giant Boeing 787 Airplane.

Clearly inspired by Star Trek!

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Giant Boeing 787 airplane. Quora

6. Elephant’s foot Chernobyl, Ukraine

Can you see the big blob on floor? Yes, this is the Elephant’s foot!

The so called Elephant’s Foot is a solid mass made of melted nuclear fuel mixed with lots and lots of concrete, sand, and core sealing material that the fuel had melted through. It is located in a basement area under the original location of the core.

With just 300 seconds of exposure you will have two days to live. Fatal!

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Elephant’s foot. Quora

7. Blade made from iron from a Meteorite.

meteorite
Blade made from iron from a Meteorite. Quora

8. ZebraFish larvae under microscope.

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ZebraFish larvae under microscope. Quora

9. Smoke rings from Mount Etna in Sicily.

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Smoke rings from Mount Etna. Quora