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TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

9 replaced http://i.stack.imgur.com/ with https://i.stack.imgur.com/
source | link

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

8 edited body
source | link

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description hereenter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

TL;DR: Plastic is better than Glass. It won't break (don't sue me if it does). If it does, you have about 0.0000518 seconds to get out of the way.

A blender I picked at random.

It has a powerful 750W motor.

A different blender that I saw with 35,000 rpm had a 1725W motor. This divides down to be ≈ 15,200 RPM.

The size: 40H x 18W x 18D

So the main box that the blade is in has size of 17W x 17H. The blade won't quite touch the edges, so let's say the diameter is 16cm. The circumference is therefore 16*3.14 ≈ 50.25

15,200 RPM means the tips are going 50.25 * 15,200 per minute, or ≈ 12,730 cm/s = 127.3 m/s The inner part of the blade will be going at ≈ 2,355 cm/s = 23.55 m/s (assuming a 6cm diameter hub).

Wow, lots of text.
Yay, a kitten!
Don't worry, the kitten survives!

enter image description here

The average of those two is ≈ 75.43 m/s. So let's say this sharpened stainless steel blade is going at 75 m/s when it breaks off.

If the blade is about 10g (12 - 13cm) then it has a force of about 5N per m2.

But this blade will hit a point ~ 1mm2, which is a force of 52,300,000N on that mm2 area. 523,000 = 523,000 pascals.

The force needed to break through glass is 33,000,000 pascals. The blade will not through. Acrylic, however, can be 2 or 3 times stronger. Therefore, a plastic blender may be better than a glass one, in terms of safety.

However, this was a 750W blender, if it was a 1500W blender, it could be up to 1,046,000 pascals hitting a piece of acrylic rated at 99,000,000 pascals. Stil not enough to get through. Enough to do some damage.

Important point: The blade won't break off. The implications of this are so severe, a blender is tested thoroughly before going onto the market. The biggest danger is finger slicing, not blade releasing.

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