| John Tyndall - 1863 - 500 pages
...red light placed end to end would make up an inch ; multiply the number of .inches in 192,000 miles by 39,000, we obtain the number of waves of red light in 192,000 miles : this number is 474,439,680,000,000. All these waves enter the eye in a single second.... | |
| John Tyndall - 1863 - 538 pages
...red light placed end to end would make up an inch ; multiply the number of inches in 192,000 miles by 39,000, we obtain the number of waves of red light in 192,000 miles : this number is 474,439,680,000,000. All these waves enter the eye in a single second.... | |
| John Tyndall - 1866 - 492 pages
...red light placed end to end would make up an inch ; multiply the number of inches in 192,000 miles by 39,000, we obtain the number of waves of red light in 192,000 miles : this •amber is 474,439,680,000,000. All these waves enter the eye in a single second.... | |
| John Tyndall - 1870 - 92 pages
...of a wave of red light is about ^-g^inr °f an mch ! that of a wave of violet light is about ^T^5 th of an inch. The waves which produce the other colours...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,680,000.000. All these waves enter the eye in a second. In the... | |
| Robert Bird - 1870 - 262 pages
...red light placed end to end, would make up an inch; multiply the number of inches in 192,000 miles by 39,000, we obtain the number of waves of red light in 192,000 miles; this number is 474,439,680,000,000. All these waves enter the eye in a single second.... | |
| John Tyndall - 1871 - 408 pages
...that of the wave of violet light is about ^ gu0th of an inch. The waves which produce the other colors of the spectrum lie between these extremes. 242. The...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,680,000,000. All these waves enter the eye in a second. In the... | |
| Sabine Baring-Gould - 1871 - 450 pages
...light, placed end to end, would make up an inch; multiplying the number of inches in 192,000 miles by 39,000, we obtain the number of waves of red light in 192,000 miles: this number is 474,439,680,000,000. All these waves enter the eye in a single second.... | |
| Heinrich Schellen - 1872 - 740 pages
...of a wave of mean violet light is about [-575001!! of an inch. The velocity of light being taken at 192,000 miles in a second, if we multiply this number...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,600,000,000. All these waves enter the eye in a second. In the... | |
| Heinrich Schellen - 1872 - 744 pages
...of a wave of mean violet light is about 1-575001!) of an inch. The velocity of light being taken at 192,000 miles in a second, if we multiply this number...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,600,000,000. All these waves enter the eye in a second. In the... | |
| John Tyndall - 1874 - 216 pages
...that of the wave of violet light is about 87^oath of an inch. The waves which produce the other colors of the spectrum lie between these extremes. 242. The...39,000 we obtain the number of waves of red light in 192,000 miles; the product is 474,439,680,000,000. All these waves enter the eye in a second. In the... | |
| |