Knowledge in polyspermy
Polyspermy Prevention in Sea Urchin ( Zoology / Biology )
Here are the details of Polyspermy Prevention in Sea Urchin. You get to know about the different blocks to polyspermy with proper diagrams. It is included in the syllabus of B.Sc. Honours 1st Year (Zoology) under Calcutta University.
Nabhonil Biswas
Sperm Donation Goes Hands Free with This Weird Chinese Automatic Sperm Collector
Chinese Automatic Sperm CollectorWhat you see below, is a hands-free automatic sperm collector. Yes, you read that right and if that's already got you laughing, We're kinda used to weird and wonderful stuff coming out of Japan but it seems China has played a trump card as here we see a rather 'interesting' device finding its way into a Chinese hospital in Nanjing, capital of Jiangsu Province. What you see below is a hands-free automatic sperm collector called 'The SW-3701'. Yes, you read that right and if that's already got you laughing, then check out the video.The concept is probably just as you can imagine. A massage pipe protrudes and retracts after the user has gotten himself into position and the machine keeps going until it has collected the sperm. The height is adjustable and the user even gets to chose the frequency, amplitude, and temperature. There's even a screen to provide some visual stimulation which is probably needed to help you forget that you're currently being fellated by a machine like a cow being milked.
kaushal shah