The Sea-coast: (1) Destruction, (2) Littoral Drift, (3) ProtectionLongmans, Green, 1903 - 361 páginas |
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Página 14
... foot in height , a length of 13 feet , and a velocity of 6 feet a second , with 14 in a minute ; and wavelets 6 inches high , a length of 6 feet , and a velocity of 23 feet a second , with 15 to 20 in a minute . The period of the wave ...
... foot in height , a length of 13 feet , and a velocity of 6 feet a second , with 14 in a minute ; and wavelets 6 inches high , a length of 6 feet , and a velocity of 23 feet a second , with 15 to 20 in a minute . The period of the wave ...
Página 19
... foot ; the length of the wave as 30 feet ; the velocity of movement due to the head of 5 feet , as 18 feet a second ; the weight of the water in movement , for 1 foot in width , would be- 30 × 1 × 5 × 64 = 9600 lbs . = 4.27 tons The ...
... foot ; the length of the wave as 30 feet ; the velocity of movement due to the head of 5 feet , as 18 feet a second ; the weight of the water in movement , for 1 foot in width , would be- 30 × 1 × 5 × 64 = 9600 lbs . = 4.27 tons The ...
Página 20
... foot of the beach of 0.28 ton ; and falling from a mean height of 5 feet , with a velocity of 18 feet a second , would produce an impact of 5.18 tons on each square foot . If this calculation be reduced in the same proportion as the ...
... foot of the beach of 0.28 ton ; and falling from a mean height of 5 feet , with a velocity of 18 feet a second , would produce an impact of 5.18 tons on each square foot . If this calculation be reduced in the same proportion as the ...
Página 35
... foot or 18 inches , the average being about 12 inches , the bands being from 10 to 13 feet apart . The proportion of flint in these cliffs may be taken at from 7 to 10 per cent . The quantity of shingle thrown on the beach of Normandy ...
... foot or 18 inches , the average being about 12 inches , the bands being from 10 to 13 feet apart . The proportion of flint in these cliffs may be taken at from 7 to 10 per cent . The quantity of shingle thrown on the beach of Normandy ...
Página 39
... foot of the bank weighing upwards of 150 lbs.2 At Lancing , on the Sussex coast , there is a bank of shingle about a mile long and 150 yards wide , 3 and at Shoreham a bank 4 miles in length , and in places a quarter of a mile wide.3 On ...
... foot of the bank weighing upwards of 150 lbs.2 At Lancing , on the Sussex coast , there is a bank of shingle about a mile long and 150 yards wide , 3 and at Shoreham a bank 4 miles in length , and in places a quarter of a mile wide.3 On ...
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The Sea-coast: 1. Destruction, 2. Littoral Drift, 3. Protection William Henry Wheeler Vista completa - 1902 |
Términos y frases comunes
12 feet 20 feet alluvium angle bank of shingle basalt beach in front beach material Blackpool boulder clay boulders Bridlington carried chalk chalk cliffs channel chert Clacton clay cliffs consist coast coast-line composed concrete considerable constructed covered with sand denudation deposited depth derived direction distance dunes entrance erected erosion estuary extends face fathoms feet high Felixstowe flints flood tide foot formed gravel groynes half a mile harbour headland heavy gales height high groynes high tides high water Humber inches in diameter inland jetty Kilnsea land length limestone littoral drift London Clay low groynes low water marshes mile wide on-shore gales pebbles pier piles placed planking promenade protection quantity quartzite rise river rocks sand and shingle sand-hills sandstone sandy sea-wall seaward shingle and sand shingle-bank shore slope spring tides Spurn Point stones surface tidal timber varying wall washed width wind Withernsea yards long yards wide