Summer Science | National Geographic

like all seasons summer is the result of

like all seasons summer is the result of an astronomical fact of life

an astronomical fact of life

an astronomical fact of life the earth is tilted on its axis 23 and a

the earth is tilted on its axis 23 and a

the earth is tilted on its axis 23 and a half degrees as the planet moves in its

half degrees as the planet moves in its

half degrees as the planet moves in its yearly orbit that angle comes as the

yearly orbit that angle comes as the

yearly orbit that angle comes as the position of the northern hemisphere to

position of the northern hemisphere to

position of the northern hemisphere to change relative to the Sun in the winter

change relative to the Sun in the winter

change relative to the Sun in the winter it’s tilted away from the Sun in the

it’s tilted away from the Sun in the

it’s tilted away from the Sun in the summer it angles towards the center

summer it angles towards the center

summer it angles towards the center because of the planets tilt during the

because of the planets tilt during the

because of the planets tilt during the summer sunlight hits the earth at a more

summer sunlight hits the earth at a more

summer sunlight hits the earth at a more direct angle so the warming effect of

direct angle so the warming effect of

direct angle so the warming effect of the sunlight is more intense plus the

the sunlight is more intense plus the

the sunlight is more intense plus the Sun is at its highest point in the sky

Sun is at its highest point in the sky

Sun is at its highest point in the sky so there are more hours of sunlight to

so there are more hours of sunlight to

so there are more hours of sunlight to provide Heat the opposite is true for

provide Heat the opposite is true for

provide Heat the opposite is true for the southern hemisphere where the

the southern hemisphere where the

the southern hemisphere where the seasons are reversed when we’re angled

seasons are reversed when we’re angled

seasons are reversed when we’re angled toward the Sun they’re angled away so

toward the Sun they’re angled away so

toward the Sun they’re angled away so while our Australian friends chill out

while our Australian friends chill out

while our Australian friends chill out in winter we’re headed for the beach

there is some amazing science behind how

there is some amazing science behind how that golden strip of sand is created

the sand on most beaches begins not in

the sand on most beaches begins not in the ocean but inland over time

the ocean but inland over time

the ocean but inland over time weathering by ice wind and rain breaks

weathering by ice wind and rain breaks

weathering by ice wind and rain breaks down rock into sediment creeks and

down rock into sediment creeks and

down rock into sediment creeks and rivers wash the sediment downstream

rivers wash the sediment downstream

rivers wash the sediment downstream once in the ocean currents of water

once in the ocean currents of water

once in the ocean currents of water called longshore currents and flow

called longshore currents and flow

called longshore currents and flow parallel to the coast carry those

parallel to the coast carry those

parallel to the coast carry those sentiments along the shoreline waves

sentiments along the shoreline waves

sentiments along the shoreline waves then push the sand onto Shore forming

then push the sand onto Shore forming

then push the sand onto Shore forming beaches longshore currents can deliver

beaches longshore currents can deliver

beaches longshore currents can deliver up to a million cubic yards of sediment

up to a million cubic yards of sediment

up to a million cubic yards of sediment to a single Beach each year

most waves that deliver sand to our

most waves that deliver sand to our beaches are porn thousands of miles away

ocean waves are created basically by the

ocean waves are created basically by the wind the wind blows across the surface

wind the wind blows across the surface

wind the wind blows across the surface of the water and it adds the surface of

of the water and it adds the surface of

of the water and it adds the surface of the water causing a wave to be formed

the water causing a wave to be formed

the water causing a wave to be formed the longer the wind blows or the

the longer the wind blows or the

the longer the wind blows or the stronger the wind blows the bigger the

stronger the wind blows the bigger the

stronger the wind blows the bigger the waves that’s going to create waves are

waves that’s going to create waves are

waves that’s going to create waves are generated by wind blowing across the

generated by wind blowing across the

generated by wind blowing across the surface of the ocean energy from the

surface of the ocean energy from the

surface of the ocean energy from the wind is transferred to the wave through

wind is transferred to the wave through

wind is transferred to the wave through friction between the air and water wind

friction between the air and water wind

friction between the air and water wind that blows faster longer and further

that blows faster longer and further

that blows faster longer and further will transfer more energy into the ocean

will transfer more energy into the ocean

will transfer more energy into the ocean and create bigger waves waves sometimes

and create bigger waves waves sometimes

and create bigger waves waves sometimes travel across vast expanses of open

travel across vast expanses of open

travel across vast expanses of open ocean in some cases as far as 10,000

ocean in some cases as far as 10,000

ocean in some cases as far as 10,000 miles waves can travel across entire

miles waves can travel across entire

miles waves can travel across entire ocean basins so a very strong storm in

ocean basins so a very strong storm in

ocean basins so a very strong storm in the southwest Pacific will create a

the southwest Pacific will create a

the southwest Pacific will create a swell which could go all the way across

swell which could go all the way across

swell which could go all the way across the Pacific Ocean and end up impacting

the Pacific Ocean and end up impacting

the Pacific Ocean and end up impacting Mexico or the west coast of North

Mexico or the west coast of North

Mexico or the west coast of North America