So, the up is the Embassy data, the PM 2.5.

If we place a single grain of rice on the first square of a chessboard, double this and place 2 grains on the second, double again and place 4 on the third, double again and place 8 on the fourth, and continue this way, putting on each square twice the number of grains than were on the previous one, by the time we reach the final square, we need an astronomical number of grains

The largest crater of 5 millimetres in diameter was probably caused by a 1 millimetre particle.

The largest crater, 5 mm in diameter, was probably caused by a particle of 1 mm.

Waste not a single grain of rice!

The diameter of each dot represents the length of the sentence inside, so that the large dots contain large sentences, and the small dots contain small sentences.

So, that's 20 micrometers across, that pollen grain there.

Nanotechnology, nanoparticles, you hear a lot of worry about this.

That's what's happening to the water inside that popcorn.

9 quintillion, 223 quadrillion, 372 trillion, 36 billion, 854 million, 776 thousand grains more grain than the human race has grown in the last 10,000 years.

I was by the sinkhole. I seen this corn and hog tracks beside it.

I don't know who needs a corn sheller.

Modern economies,

The way you measure nanotechnology is in nanometers, and one nanometer is a billionth of a meter, and to put some scale to that, if you had a nanoparticle that was one nanometer thick, and you put it side by side, and you had 50,000 of them, you'd be the width of a human hair.

Size of particles

Particle size

Loose nanoparticles. What is really interesting to me is that not many people have been asking, How can we consult nature about how to make nanotechnology safe?

He pointed at three grains of rice at the bottom of my bowl, and he said, Clean.

Embedding nanoparticles in a material for instance, always.

All of them are still being produced. So you've got corn shellers.

Heavy Snow Grains

Figure IX illustrates the total population of debris particles larger than 1 cm in LEO for a number of scenarios.

Heavy Snow Pellets

Heavy Ice Pellets

This is soap that's made from silver nanoparticles, which have antibacterial properties.

Heavy Drizzle Ice Pellets

Heavy Ice Pellets Drizzle

Heavy Ice Pellets Rain

Heavy Rain Ice Pellets

When we handed over every last grain of rice, we all gave the same.

We want to develop these little tiny capsules about the size of a piece of risotto that we can put into the muscles and telemeter out the EMG signals, so that it's not worrying about electrode contact.

And not just iridium it's filled with glassy spherules, and it's filled with quartz grains that have been subjected to enormous pressure shock quartz.

Protection against particles 0.1 1 cm in size can be achieved by shielding spacecraft structures.

Physical protection against particles larger than 10 cm is not yet technically feasible.

Snow at times heavy mixed with ice pellets

Snow at times heavy or ice pellets

So it seems there are already fine particles that are levitated up to what we call the mesosphere, about 100 kilometers up, that already have this effect.

For particles in the sub millimetre diameter range the solar radiation pressure effects a considerable drift of the perigee altitude, but such particles can only result from a collision event in the graveyard orbit itself.

A hazard for space objects and orbital stations is posed by hypervelocity impact with meteoroids and space debris particles 1 2 mm or larger.

The question whether carbon or silicate grains will form critically depends on the chemical composition of the Jovian atmosphere.

Perhaps no larger than a grain of wheat.

It is estimated to have the capability to detect a particle 1 mm in diameter at a distance of 1 km.

Then you can harvest the kernels, and then you just need a few kernels.

Renunciation of the use in space of motor systems powered by types of propellant whose combustion involves the formation of solid particles (a third of the combustion products of solid rocket motor fuels, for instance produce aluminium oxide particles of 0.0001 0.01 mm in size)

There were nine left in the bottle. I've already analyzed five. This is the sixth one.