1 Before you agree to the freezing and storage of your sperm, your clinician will explain the process involved. 2  You will be screened for infectious diseases, including HIV and hepatitis B and C. 3  You will need to give written consent for your sperm to be stored. 4  At the clinic, you produce a fresh sample of sperm.toring sperm is the only established way to preserve male fertility. Studies have shown that sperm can be retrieved and stored from patients as young as 13 years old, and storing sperm for a long time should not alter its ability to fertilise an egg.
Diamond is a form of carbon in which each carbon atom is joined to four other carbon atoms, forming a giant covalent structure. As a result, diamond is very hard and has a high melting point.It does not conduct electricity.iamond is a form of carbon in which each carbon atom is joined to four other carbon atoms, forming a giant covalent structure. As a result, diamond is very hard and has a high melting point.
At about 100,000 atmospheres, diamond melts at about 4200 K, lower than the 4300 K mentioned above for graphite. However, if you look closely at the diagram, you will realize that at a little less than 100,000 atmospheres, where graphite is stable, its melting point is also 4200 K.