7 aircraft shaft engines

1. In-line engine
2. Rotary engine
3. V-type engine
4. Radial engine
5. Opposed engine
6. Turboprop
7. Turboshaft

7 video codecs

1. Xvid
2. QuickTime H.264
3. Huffyuv
4. Lagarith
5. FFmpeg
6. Indeo
7. Sorenson 3

7 songs with snow in their title

1. Snowblind - Black Sabbath
2. Snow Queen - Carol King
3. Snowbound - Genesis
4. Snowman - XTC
5. Snow, Snow, Snow - Randy Newman
6. Snowballed - AC/DC
7. Snowmen - Barenaked Ladies

7 French new wave directors

1. Claude Chabrol
2. Jean-Luc Godard
3. Jacques Rivette
4. Éric Rohmer
5. François Truffaut
6. Marguerite Duras
7. Philippe Garrel

7 most frequently played Wii Fit Plus activities

1. Ski Jump
2. Skateboard Arena
3. Driving Range
4. Ski Slalom
5. Rhythm Kung Fu
6. Snowboard Slalom
7. Balance Bubble

7 foods most people only have over Decemberween

1. Dates
2. Shelled Nuts
3. Roasted Chestnuts
4. Mince Pies
5. Chocolate Liqueurs
6. Sprouts
7. Dried Figs

7 oldest trees

1. Prometheus (Great Basin Bristlecone Pine) - 5,000 years old : California, USA
2. Methuselah (Great Basin Bristlecone Pine) - 4,800 years old : California, USA
3. Sarv-e-Abarkooh (Cypress) - 4,000 years old : Abarkooh, Iran
4. Llangernyw Yew (Common Yew) - 4,000 years old : Llangernyw, Wales
5. Alerce (Fitzroya Cupressoides) - 3,600 years old : Chile
6. Senator (Baldcypress) - 3,500 years old : Florida, USA
7. Jardine Juniper (Juniperus Scopulorum) - 3,200 years old : Utah, USA