FP =Facing points.
By Kepler's second law the radius vector, FP, sweeps over equal areas in equal times.
Representing by P this position, it follows that the area of that portion of the ellipse contained between the radii vectores FB and FP will bear the same ratio to the whole area of the ellipse that t does to T, the time of revolution.
-Fp n by x-a, according to algebraical division, the remainder is R= po an +pla?
Arc tOe por:e in fp:crc: fo: t h er o io the l'ympottt of hcren.
D, E, F, Trochosphere stage, D fp, Pore in the foot (belonging mf, The mantle-flap or limbus to the pedal gland?).
Any number of points on the parabola are obtained by taking any point E on the directrix, joining EG and EF and drawing FP so that the angles PFE and DFE are equal.
Then EG produced meets FP in a point on the curve.
By comparing this with the expression for the centrifugal force (wap/g), it appears that the actual energy of a revolving body is equal to the potential energy Fp/2 due to the action of the deflecting force along one-half of the radius of curvature of the path of the body.
- An early stage in the development of Antedon, showing the foot-plate or "dorso-central" fp at the end of the stem col.
In Peripatus the prostomium of the Chaetopod-like ancestor is atrophied, but it is possible that two processes on the front of the head (FP) represent in the embryo the dwindled prostomial tentacles.
Of these facts is given by saying FP, Rudimentary frontal pro that the Onychophora are " deutercesses perhaps repre ognathous " - that is to say, that senting the prostomial the buccal somite carrying the mantentacles of Polychaeta.
FP, Frontal processes (observed in Cirrhiped nauplius-larvae) probably representing the prostomial tentacles of Chaetopods.
The effort was, indeed, foredoomed to failure, since it attempted the impossible task of framing a coherent 1 Synderesis(Gr.o-vvrininaes,from uvvr fP E%v,to watch closely, observe) is used in this sense in Jerome (Corn.